Internal force calculation method, system and equipment for design section of wallboard component and medium

Abstract

The invention relates to the field of nuclear island civil engineering structure design, in particular to an internal force calculation method, system, equipment and medium for a design section of a wallboard component, and the method comprises the following steps: splitting the wallboard component into a plurality of entity units; according to the thickness of the wallboard component, dividing all the entity units into a plurality of entity unit sets, and constructing a local coordinate system for each entity unit set; for each entity unit in the entity unit set, identifying an intersection line and determining a design section of the intersection line in a local coordinate system; obtaining the coordinates of the calculation points on the intersection line under the natural coordinate system; constructing a unit internal force calculation model based on the coordinates; calculating the stress of each calculation point based on a unit internal force calculation model; and calculating the internal force of the design section based on the stress of each calculation point. According to the method, complicated graphic element operation on each entity unit is avoided, the calculation process is simplified, the calculation efficiency is improved, and the engineering efficiency can be improved under the condition of processing a large number of entity units.

Description

Technical Field

[0001] The invention relates to the field of nuclear island civil structure design, and in particular to an internal force calculation method, system, equipment and medium for a design section of a wall panel component. Background Art

[0002] The civil engineering structure of the nuclear island is usually analyzed mechanically using the finite element software Ansys. For wall and panel components that do not conform to the plate and shell theory, such as thick walls, thick plates, and prestressed containment shells that require detailed analysis, solid units are usually used for simulation, and the output is the stress of the unit nodes. This requires defining the design section and "mapping" the stress of the unit nodes to these design sections to obtain the distribution of stress in the defined design section, and finally obtain the design internal force of these design sections through integral calculations. In order to ensure the safety of the design, it is necessary to conduct a design safety assessment for all positions of the wall and panel components. In the design, the centroid of the boundary surface corresponding to each solid unit on one of the surfaces of the wall and panel components is usually defined to penetrate the thickness of the wall and panel and form the shortest line segment with the intersection with its surface to represent the unit length design section in two mutually orthogonal directions at that position for design.

[0003] The above steps are all completed using the functional commands related to graphic element operations provided by the finite element software Ansys, such as the Path command to define the starting point of the line segment, the Pdef command to "map" the stress of the unit and node to each point on these line segments, and the Pcal command to integrate the internal force of the design section according to the stress distribution of the line segment.

[0004] However, the existing methods rely on the operation of graphic elements and take a long time, which seriously affects the engineering efficiency when faced with the calculation of the design cross-sections of tens of thousands of solid units in the nuclear island plant. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a method, system, equipment and medium for calculating the internal force of the design section of a wall panel component.

[0006] The first aspect of the present invention discloses a method for calculating the internal force of a design section of a wall panel component based on Ansys, comprising:

[0007] Based on Ansys, the wall panel components are split into multiple solid units;

[0008] According to the thickness of the wall panel component, all the entity units are divided into a plurality of entity unit sets, and a local coordinate system is constructed for each entity unit set;

[0009] For each entity element of the entity element set: in the local coordinate system,

[0010] According to the shape of the solid unit, identifying the intersection line thereof;

[0011] According to the intersection line, the design cross section is determined;

[0012] Based on Ansys, obtaining the coordinates of the preset calculation points on the intersection line in the natural coordinate system;

[0013] Based on the coordinates of each of the calculation points in the natural coordinate system, a unit internal force calculation model is constructed; wherein the unit internal force calculation model describes the interpolation relationship between the stress of the calculation point and the stress of all nodes of the solid unit in the local coordinate system;

[0014] Calculating the stress of each calculation point based on the unit internal force calculation model;

[0015] Based on the stress at each of the calculation points, the internal force of the design section is calculated.

[0016] Furthermore, the step of dividing all the solid units into a plurality of solid unit sets according to the thickness of the wall panel component comprises:

[0017] Among all the entity units, the entity units belonging to the part of the same wall panel component with regularly changing thickness are divided into a entity unit set.

[0018] Furthermore, according to the shape of the entity unit, the step of identifying the intersection line thereof includes:

[0019] According to the shape of the solid unit, two surface sections are obtained;

[0020] Taking the centroid of any of the surface cross sections as a starting point, the shortest line segment among the straight line segments passing through the starting point and running through the two surface cross sections is calculated as their intersection line.

[0021] Furthermore, according to the intersection line, the step of determining the design cross section includes:

[0022] Based on Ansys, determining a section parallel to the xy plane of the local coordinate system according to the intersection line as a first design section;

[0023] Based on Ansys, a section parallel to the yz plane of the local coordinate system is determined according to the intersection line as the second design section.

[0024] Furthermore, when the solid unit is a hexahedron, based on the coordinates of each of the calculation points in the natural coordinate system, the step of constructing the unit internal force calculation model includes:

[0025] Obtaining the specified type stress values ​​of the eight nodes of the hexahedral solid element in the local coordinate system and their coordinate values ​​in the natural coordinate system;

[0026] Construct the unit internal force calculation model according to the following formula:

[0027]

[0028]

[0029] Among them, Stress I is the specified type stress value of node I in the local coordinate system. The coordinate value of node I in the natural coordinate system is (-1, 1, -1). J is the specified type stress value of node J in the local coordinate system. The coordinate value of node J in the natural coordinate system is (-1,-1,-1). K is the specified type stress value of node K in the local coordinate system. The coordinate value of node K in the natural coordinate system is (1,-1,-1). L is the specified type stress value of node L in the local coordinate system. The coordinate value of node L in the natural coordinate system is (1, 1, -1). M is the specified type stress value of node M in the local coordinate system. The coordinate value of node M in the natural coordinate system is (-1, 1, 1). N is the specified type stress value of node N in the local coordinate system. The coordinate value of node N in the natural coordinate system is (-1,-1,1). O is the specified type stress value of node O in the local coordinate system. The coordinate value of node O in the natural coordinate system is (1,-1,1). P is the specified type stress value of the node P in the local coordinate system, and the coordinate value of the node P in the natural coordinate system is (1,1,1). Stress is the specified type stress value of the specific calculation point in the local coordinate system, and the coordinate value of the specific calculation point in the natural coordinate system is (r,s,t).

[0030] Further, based on the stress of each of the calculation points, the step of calculating the internal force of the design section includes:

[0031] Based on the stress of each of the calculation points, respectively calculate the axial forces of the first design section and the second design section;

[0032] Based on the stress of each of the calculation points, respectively calculate the bending moments of the first design section and the second design section;

[0033] Based on the stress of each of the calculation points, respectively calculate the shear force of the first design section and the second design section;

[0034] Based on the stress of each of the calculation points, the torques of the first design section and the second design section are calculated respectively.

[0035] Furthermore, the step of respectively calculating the axial force of the first design section and the second design section based on the stress of each calculation point includes:

[0036] The axial force N1 in the normal direction of the first design section is calculated according to the following formula:

[0037]

[0038] The axial force N2 in the normal direction of the second design section is calculated according to the following formula:

[0039]

[0040] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_σ z,i Represents the normal stress of the i-th calculation point in the z-axis direction of the local coordinate system, Stress_σ x,i represents the normal stress of the ith calculation point in the x-axis direction of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0041] Furthermore, the step of respectively calculating the bending moment of the first design section and the second design section based on the stress of each calculation point includes:

[0042] The bending moment M1 of the first design section around the x-axis of the local coordinate system is calculated according to the following formula:

[0043]

[0044] The bending moment M2 of the second design section around the z-axis of the local coordinate system is calculated according to the following formula:

[0045]

[0046] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_σ z,i Represents the normal stress of the i-th calculation point in the z-axis direction of the local coordinate system, Stress_σ x,i represents the normal stress of the ith calculation point in the x-axis direction of the local coordinate system, Δs represents the straight-line distance between two adjacent calculation points in the intersection line, and s i Represents the straight-line distance between the ith calculation point and the first calculation point.

[0047] Furthermore, the step of respectively calculating the shear force of the first design section and the second design section based on the stress of each calculation point includes:

[0048] Based on the stress of each of the calculation points, a first shear force R1 of the first design cross section and a second shear force R2 of the second design cross section are calculated, wherein directions of the first shear force R1 and the second shear force R2 are parallel to the x-axis on the xy plane of the local coordinate system;

[0049] Based on the stress of each of the calculation points, a third shear force Q1 of the first design section is calculated, wherein the direction of the third shear force Q1 is parallel to the y-axis on the xy plane of the local coordinate system;

[0050] Based on the stress of each of the calculation points, the fourth shear force Q2 of the second design section is calculated, and the direction of the fourth shear force Q2 is parallel to the y-axis on the yz plane of the local coordinate system.

[0051] Further, based on the stress of each of the calculation points, the step of calculating the first shear force R1 of the first design section and the second shear force R2 of the second design section includes:

[0052] The first shear force R1 of the first design section and the second shear force R2 of the second design section are calculated according to the following formula:

[0053]

[0054] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xz,i represents the shear stress of the ith calculation point parallel to the z-axis direction on the xz plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0055] Further, based on the stress of each of the calculation points, the step of calculating the third shear force Q1 of the first design section includes:

[0056] The third shear force Q1 of the first design section is calculated according to the following formula:

[0057]

[0058] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ yz,i represents the shear stress of the ith calculation point parallel to the y-axis direction on the yz plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0059] Further, based on the stress of each of the calculation points, the step of calculating the fourth shear force Q2 of the second design section includes:

[0060] The fourth shear force Q2 of the second design section is calculated according to the following formula:

[0061]

[0062] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xy,i represents the shear stress of the ith calculation point parallel to the y-axis direction on the xy plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0063] Further, based on the stress of each of the calculation points, the steps of respectively calculating the torque of the first design section and the second design section include:

[0064] The torque M around the normal line of the first design section or the second design section is calculated according to the following formula: 12 :

[0065]

[0066] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xz,i represents the shear stress of the ith calculation point parallel to the z-axis direction on the xz plane of the local coordinate system, Δs represents the straight-line distance between two adjacent calculation points in the intersection line, s i Represents the straight-line distance between the ith calculation point and the first calculation point.

[0067] The second aspect of the present invention discloses an internal force calculation system for a design section of a wall panel component based on Ansys, comprising:

[0068] Splitting module, used to split the wall panel components into multiple solid units based on Ansys;

[0069] A first construction module is used to divide all the entity units into a plurality of entity unit sets according to the thickness of the wall panel component, and to construct a local coordinate system for each entity unit set;

[0070] An identification module, configured to identify, for each entity unit in the entity unit set, an intersection line according to a shape of the entity unit in the local coordinate system;

[0071] A determination module, used to determine the design cross section according to the intersection line;

[0072] An acquisition module, used for acquiring the coordinates of the preset calculation points on the intersection line in the natural coordinate system based on Ansys;

[0073] A second construction module is used to construct a unit internal force calculation model based on the coordinates of each calculation point in the natural coordinate system; wherein the unit internal force calculation model describes the interpolation relationship between the stress of the calculation point and the stress of all nodes of the solid unit in the local coordinate system;

[0074] A first calculation module, used for calculating the stress of each calculation point based on the unit internal force calculation model;

[0075] The second calculation module is used to calculate the internal force of the designed section based on the stress of each calculation point.

[0076] The third aspect of the present invention discloses an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method for calculating the internal force of the design section of a wall panel component based on Ansys as disclosed in any one of the first aspect of the present invention are implemented.

[0077] The fourth aspect of the present invention discloses a storage medium storing a computer program, characterized in that when the computer program is executed by a processor, the steps of the internal force calculation method of the design section of the wall panel component based on Ansys as disclosed in any one of the first aspect of the present invention are implemented.

[0078] The present invention defines an intersection line, selects multiple calculation points, and then constructs a unit internal force calculation model based on the coordinates of these calculation points in the natural coordinate system, calculates the stress of each calculation point, and finally calculates the internal force of the designed section, thereby avoiding complex graphic element operations on each entity unit, greatly simplifying the calculation process, thereby improving the calculation efficiency, and can greatly improve engineering efficiency when processing a large number of entity units. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0080] Figure 1 It is a flow chart of a method for calculating the internal force of a design section of a wall panel component based on Ansys disclosed in an embodiment of the present invention;

[0081] Figure 2 It is a schematic diagram of a physical unit and its nodes disclosed in an embodiment of the present invention;

[0082] Figure 3 It is a schematic diagram of intersection lines, design sections, and calculation points of a hexahedral solid unit disclosed in an embodiment of the present invention;

[0083] Figure 4 is a schematic diagram of multiple calculation points on the intersection line disclosed in an embodiment of the present invention;

[0084] Figure 5 It is a schematic diagram of various internal forces of the design cross section disclosed in the embodiment of the present invention;

[0085] Figure 6 It is a structural schematic diagram of an internal force calculation system for a design cross section of a wall panel component based on Ansys disclosed in an embodiment of the present invention;

[0086] Figure 7 It is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0087] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0088] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, or product end including a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0089] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0090] The present invention constructs a design section for each entity unit based on the basic theory of finite element, establishes an interpolation relationship between the stress value of the calculation point of the intersection line that is independent of the load condition and the node stress value of the entity unit, and solves the problem of low calculation efficiency caused by the need to repeatedly define the intersection line when extracting the internal force of the design section defined under each load condition. The interpolation relationship of the established stress value is used to "map" the node stress of the entity unit to the calculation point of each intersection line, avoiding the relatively inefficient Pdef and Pcal commands of the finite element software ansys related to the operation of graphic elements in the past, and further improving the calculation efficiency. The calculation time that used to take 10 hours is shortened to less than 1 hour. The problem of low efficiency in extracting the internal force of the unit length design section of the wall panel component simulated by the finite element entity unit is completely solved to meet the needs of the civil structure design of the nuclear island.

[0091] See also Figure 1 As shown, Figure 1 FIG. 1 is a flow chart of a method for calculating the internal force of a design cross section of a wall panel component based on Ansys disclosed in an embodiment of the present invention. Figure 1 As shown, the internal force calculation method of the design section of the wall panel component based on Ansys may include the following operations:

[0092] S101. Based on Ansys, split the wall panel components into multiple solid units;

[0093] Ansys is a general finite element analysis software, mainly used for finite element analysis and optimization design of physical fields such as structures, fluids, heat conduction, electromagnetic fields, and acoustic fields in the engineering field. Ansys can simulate various engineering problems in actual physical environments, such as stress analysis, thermal analysis, fluid analysis, etc. In this embodiment, the wall panel component refers to the wall or floor slab in the civil structure of the nuclear island. Splitting the wall panel component into multiple solid units is a key step in finite element analysis. This process is called meshing or meshing. In Ansys, users can use the built-in meshing tool to mesh the model.

[0094] Figure 2 Three types of entity units and their nodes are shown. The first one is a hexahedral entity unit, which has eight nodes: I, J, K, L, M, N, O, and P. The hexahedral entity unit is taken as an example in the embodiment of the present invention. Figure 2 The second one is the prismatic solid element. In engineering applications, it is regarded as a hexahedral solid element with overlapping K and L nodes and overlapping O and P nodes. Figure 2 The second one is a tetrahedral solid element. In engineering applications, it is regarded as a hexahedral solid element with overlapping K and L nodes and overlapping M, N, O, and P nodes.

[0095] S102, dividing all the entity units into a plurality of entity unit sets according to the thickness of the wall panel component, and constructing a local coordinate system for each entity unit set;

[0096] In an optional embodiment, the step of dividing all the solid units into a plurality of solid unit sets according to the thickness of the wall panel component comprises:

[0097] Among all the entity units, the entity units belonging to the part of the same wall panel component with regularly changing thickness are divided into a entity unit set.

[0098] In this optional embodiment, the regular variation of thickness means that the thickness of the wall panel component can be expressed by a function, for example, the thickness varies linearly.

[0099] In this optional embodiment, the local coordinate system is a rectangular coordinate system.

[0100] S103, for each entity unit in the entity unit set: in the local coordinate system, according to the shape of the entity unit, identifying its intersection line;

[0101] In an optional embodiment, according to the shape of the solid unit, the step of identifying the intersection line thereof comprises:

[0102] According to the shape of the solid unit, two surface sections are obtained;

[0103] Taking the centroid of any of the surface cross sections as a starting point, the shortest line segment among the straight line segments passing through the starting point and running through the two surface cross sections is calculated as their intersection line.

[0104] In this optional embodiment, the centroid refers to the geometric center or average position point of the surface cross section, also known as the centroid or center of gravity. The centroid of the solid element can be determined by geometric methods or integral calculations.

[0105] The surface section refers to the surface of the solid element exposed on the wall surface or floor surface. Figure 3 Taking a hexahedral solid element as an example, its intersection line is shown, one end of which passes through the centroid of a surface section.

[0106] S104, determining a design cross section according to the intersection line;

[0107] In an optional embodiment, the step of determining the design cross section according to the intersection line includes:

[0108] Based on Ansys, determining a section parallel to the xy plane of the local coordinate system according to the intersection line as a first design section;

[0109] Based on Ansys, a section parallel to the yz plane of the local coordinate system is determined according to the intersection line as the second design section.

[0110] In this optional embodiment, the length of each design section is a preset unit length, and in this embodiment, the unit length is 1 meter. The intersection line coincides with the center line of each design section, such as Figure 3 Shown on the far right.

[0111] S105, based on Ansys, obtaining the coordinates of the preset calculation points on the intersection line in the natural coordinate system;

[0112] The natural coordinate system is a concept widely used in finite element analysis. In the natural coordinate system, each node of an element (i.e., a solid element) is assigned coordinates of one or more dimensions. These coordinates are usually selected as values ​​between -1 and 1. In finite element analysis, the physical shape of each element is usually complex, while in the natural coordinate system, these elements are abstracted into simple shapes, such as line segments, squares, cubes, etc. In this way, any point inside the element can be uniquely determined by the coordinates in the natural coordinate system. Then, these parameters can be associated with the stress values ​​of the element nodes through the shape function to obtain the stress value of the point. The shape function here is the unit internal force calculation model described in step S106.

[0113] In Ansys software, the moper function can be used to obtain the coordinates of each calculation point in the natural coordinate system.

[0114] The calculation points are preset. In this embodiment, the intersection line is divided into n segments to obtain n+1 calculation points, such as Figure 4 As shown, Figure 4 A plurality of preset calculation points are shown on the intersection line.

[0115] S106, constructing a unit internal force calculation model based on the coordinates of each calculation point in the natural coordinate system; wherein the unit internal force calculation model describes the interpolation relationship between the stress of the calculation point and the stress of all nodes of the solid unit in the local coordinate system;

[0116] In an optional embodiment, when the solid unit is a hexahedron, the step of constructing the unit internal force calculation model based on the coordinates of each calculation point in the natural coordinate system includes:

[0117] Obtaining the specified type stress values ​​of the eight nodes of the hexahedral solid element in the local coordinate system and their coordinate values ​​in the natural coordinate system;

[0118] Construct the unit internal force calculation model according to the following formula:

[0119]

[0120] Among them, Stress I is the specified type stress value of node I in the local coordinate system. The coordinate value of node I in the natural coordinate system is (-1, 1, -1). J is the specified type stress value of node J in the local coordinate system. The coordinate value of node J in the natural coordinate system is (-1,-1,-1). K is the specified type stress value of node K in the local coordinate system. The coordinate value of node K in the natural coordinate system is (1,-1,-1). L is the specified type stress value of node L in the local coordinate system. The coordinate value of node L in the natural coordinate system is (1, 1, -1). M is the specified type stress value of node M in the local coordinate system. The coordinate value of node M in the natural coordinate system is (-1, 1, 1). N is the specified type stress value of node N in the local coordinate system. The coordinate value of node N in the natural coordinate system is (-1,-1,1). o is the specified type stress value of node O in the local coordinate system. The coordinate value of node O in the natural coordinate system is (1,-1,1). P is the specified type stress value of the node P in the local coordinate system, and the coordinate value of the node P in the natural coordinate system is (1,1,1). Stress is the specified type stress value of the specific calculation point in the local coordinate system, and the coordinate value of the specific calculation point in the natural coordinate system is (r,s,t).

[0121] In this optional embodiment, the specified type stress value may be a normal stress or a shear stress. For other types of solid units, such as a tetrahedron, the principle is similar to that of a hexahedron. Those skilled in the art may construct a corresponding unit internal force calculation model based on the design concept of the unit internal force calculation model of the hexahedron without creative labor, and the present invention will not repeat them in detail.

[0122] S107, calculating the stress of each calculation point based on the unit internal force calculation model;

[0123] S108. Calculate the internal force of the designed section based on the stress of each calculation point.

[0124] Figure 5 Schematic diagram showing various internal forces of the design section. Figure 5 σ z represents the normal stress in the z-axis direction of the local coordinate system, σx represents the normal stress in the x-axis direction of the local coordinate system, τ xz represents the shear stress parallel to the z-axis on the xz plane of the local coordinate system, τ xy represents the shear stress parallel to the y-axis on the xy plane of the local coordinate system, τ yz represents the shear stress parallel to the y-axis direction on the yz plane of the local coordinate system. N1 represents the axial force in the normal direction of the first design section, N2 represents the axial force in the normal direction of the second design section, M1 represents the bending moment of the first design section around the x-axis of the local coordinate system, M2 represents the bending moment of the second design section around the z-axis of the local coordinate system, R1 represents the first shear force of the first design section, R2 represents the second shear force of the second design section, Q1 represents the third shear force of the first design section, Q2 represents the fourth shear force of the second design section, M 12 Represents a torque about a normal to the first design cross section or the second design cross section.

[0125] In an optional embodiment, the step of calculating the internal force of the designed section based on the stress of each of the calculation points includes:

[0126] Based on the stress of each of the calculation points, respectively calculate the axial forces of the first design section and the second design section;

[0127] Based on the stress of each of the calculation points, respectively calculate the bending moments of the first design section and the second design section;

[0128] Based on the stress of each of the calculation points, respectively calculate the shear force of the first design section and the second design section;

[0129] Based on the stress of each of the calculation points, the torques of the first design section and the second design section are calculated respectively.

[0130] In a further optional embodiment, the step of respectively calculating the axial forces of the first design section and the second design section based on the stress of each calculation point comprises:

[0131] The axial force N1 in the normal direction of the first design section is calculated according to the following formula:

[0132]

[0133] The axial force N2 in the normal direction of the second design section is calculated according to the following formula:

[0134]

[0135] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_σ z,i Represents the normal stress of the i-th calculation point in the z-axis direction of the local coordinate system, Stress_σ x,i represents the normal stress of the ith calculation point in the x-axis direction of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0136] In geometry, a normal is a line perpendicular to a given curve or surface at a certain point. In physics, such as stress analysis, a normal is a line perpendicular to the surface of an object. Axial force is a force acting on the axis of a structure, which causes the structure to stretch or compress.

[0137] In an optional embodiment, the step of respectively calculating the bending moment of the first design section and the second design section based on the stress of each calculation point comprises:

[0138] The bending moment M1 of the first design section around the x-axis of the local coordinate system is calculated according to the following formula:

[0139]

[0140] The bending moment M2 of the second design section around the z-axis of the local coordinate system is calculated according to the following formula:

[0141]

[0142] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_σ z,i Represents the normal stress of the i-th calculation point in the z-axis direction of the local coordinate system, Stress_σ x,i represents the normal stress of the ith calculation point in the x-axis direction of the local coordinate system, Δs represents the straight-line distance between two adjacent calculation points in the intersection line, and s i Represents the straight-line distance between the ith calculation point and the first calculation point.

[0143] Bending moment refers to a moment acting on a structure, causing it to bend. The magnitude of the bending moment is equal to the product of the force and the lever arm.

[0144] In an optional embodiment, the step of respectively calculating the shear force of the first design section and the second design section based on the stress of each calculation point comprises:

[0145] Based on the stress of each of the calculation points, a first shear force R1 of the first design cross section and a second shear force R2 of the second design cross section are calculated, wherein directions of the first shear force R1 and the second shear force R2 are parallel to the x-axis on the xy plane of the local coordinate system;

[0146] Based on the stress of each of the calculation points, a third shear force Q1 of the first design section is calculated, wherein the direction of the third shear force Q1 is parallel to the y-axis on the xy plane of the local coordinate system;

[0147] Based on the stress of each of the calculation points, the fourth shear force Q2 of the second design section is calculated, and the direction of the fourth shear force Q2 is parallel to the y-axis on the yz plane of the local coordinate system.

[0148] Shear force refers to the force acting on an object, causing it to deform by shear. The direction of the shear force is parallel to the cross section of the object.

[0149] In an optional embodiment, the step of calculating the first shear force R1 of the first design section and the second shear force R2 of the second design section based on the stress of each of the calculation points includes:

[0150] The first shear force R1 of the first design section and the second shear force R2 of the second design section are calculated according to the following formula:

[0151]

[0152] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xz,i represents the shear stress of the ith calculation point parallel to the z-axis direction on the xz plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0153] Shear stress refers to the ratio of the shear force acting on a point of an object to the area of ​​that point, and the unit is Pascal or Newton / square meter. Shear stress causes relative sliding of adjacent layers inside an object.

[0154] In an optional embodiment, the step of calculating the third shear force Q1 of the first design section based on the stress of each of the calculation points includes:

[0155] The third shear force Q1 of the first design section is calculated according to the following formula:

[0156]

[0157] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ yz,irepresents the shear stress of the ith calculation point parallel to the y-axis direction on the yz plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0158] In an optional embodiment, the step of calculating the fourth shear force Q2 of the second design section based on the stress of each of the calculation points includes:

[0159] The fourth shear force Q2 of the second design section is calculated according to the following formula:

[0160]

[0161] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xy,i represents the shear stress of the ith calculation point parallel to the y-axis direction on the xy plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

[0162] In an optional embodiment, the step of respectively calculating the torque of the first design section and the second design section based on the stress of each calculation point includes:

[0163] The torque M around the normal line of the first design section or the second design section is calculated according to the following formula: 12 :

[0164]

[0165] Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, Stress_ xz, represents the shear stress of the ith calculation point parallel to the z-axis direction on the xz plane of the local coordinate system, Δs represents the straight-line distance between two adjacent calculation points in the intersection line, s i Represents the straight-line distance between the ith calculation point and the first calculation point.

[0166] Torque, also known as moment, refers to the moment of force acting on an object to cause it to rotate. The magnitude of the torque is equal to the product of the force and the lever arm, and its direction is perpendicular to the plane where the force and the lever arm are located. In structural analysis, torque is often used to analyze the torsional performance of shafts or rods.

[0167] Please refer to Figure 6 , Figure 6 : is a schematic diagram of the structure of an internal force calculation system for a design section of a wall panel component based on Ansys disclosed in an embodiment of the present invention, and the internal force calculation system includes:

[0168] A splitting module 601 is used to split the wall panel component into multiple solid units based on Ansys;

[0169] A first construction module 602 is used to divide all the entity units into a plurality of entity unit sets according to the thickness of the wall panel component, and to construct a local coordinate system for each entity unit set;

[0170] An identification module 603 is used for identifying, for each entity unit in the entity unit set, its intersection line according to the shape of the entity unit in the local coordinate system;

[0171] A determination module 604 is used to determine the design cross section according to the intersection line;

[0172] An acquisition module 605 is used to acquire the coordinates of the preset calculation points on the intersection line in the natural coordinate system based on Ansys;

[0173] A second construction module 606 is used to construct a unit internal force calculation model based on the coordinates of each calculation point in the natural coordinate system; wherein the unit internal force calculation model describes the interpolation relationship between the stress of the calculation point and the stress of all nodes of the solid unit in the local coordinate system;

[0174] A first calculation module 607, configured to calculate the stress of each calculation point based on the unit internal force calculation model;

[0175] The second calculation module 608 is used to calculate the internal force of the designed section based on the stress of each calculation point.

[0176] It can be seen that the internal force calculation system provided by this embodiment avoids complex graphic element operations on each entity unit, greatly simplifies the calculation process, and thus improves the calculation efficiency. For the case of processing a large number of entity units, it can greatly improve engineering efficiency.

[0177] The specific definition of the internal force calculation system for the design section of the wall panel component based on Ansys can be found in the definition of the internal force calculation method for the design section of the wall panel component based on Ansys above, which will not be repeated here. Each module in the above-mentioned internal force calculation system for the design section of the wall panel component based on Ansys can be implemented in whole or in part through software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the electronic device in hardware format, or can be stored in the memory of the electronic device in software format, so that the processor can call the operations corresponding to the above-mentioned modules.

[0178] It should be noted that, in order to highlight the innovative part of the present invention, the present embodiment does not introduce modules that are not closely related to solving the technical problem proposed by the present invention, but this does not mean that there are no other modules in the present embodiment.

[0179] like Figure 7 The electronic device 1 provided by the present invention may include a memory 12, a processor 13 and a bus, and may also include a computer program stored in the memory 12 and executable on the processor 13, such as an internal force calculation program for the design section of a wall panel component based on Ansys.

[0180] The memory 12 includes at least one type of readable storage medium, and the readable storage medium includes a flash memory, a mobile hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a magnetic memory, a disk, an optical disk, etc. In some embodiments, the memory 12 may be an internal storage unit of the electronic device 1, such as a mobile hard disk of the electronic device 1. In other embodiments, the memory 12 may also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card, etc. equipped on the electronic device 1. Further, the memory 12 may also include both an internal storage unit and an external storage device of the electronic device 1. The memory 12 may not only be used to store application software and various types of data installed in the electronic device 1, such as the code for calculating the internal force of the design section of the wall panel component based on Ansys, but may also be used to temporarily store data that has been output or is to be output.

[0181] In some embodiments, the processor 13 may be composed of an integrated circuit, for example, a single packaged integrated circuit, or a plurality of packaged integrated circuits with the same or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and combinations of various control chips. The processor 13 is the control core (Control Unit) of the electronic device 1, and uses various interfaces and lines to connect various components of the entire electronic device 1, and executes or executes programs or modules stored in the memory 12 (for example, internal force calculation programs for the design section of wall panel components based on Ansys, etc.), and calls data stored in the memory 12 to execute various functions of the electronic device 1 and process data.

[0182] The processor 13 executes the operating system of the electronic device 1 and various installed application programs. The processor 13 executes the application programs to implement the steps in the above-mentioned internal force calculation method of the design section of the wall panel component based on Ansys.

[0183] Exemplarily, the computer program may be divided into one or more modules, which are stored in the memory 12 and executed by the processor 13 to complete the present application. The one or more modules may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program in the electronic device 1. For example, the computer program may be divided into a splitting module 601, a first building module 602, an identification module 603, a determination module 604, an acquisition module 605, a second building module 606, a first calculation module 607, and a second calculation module 608.

[0184] The above-mentioned integrated unit implemented in the form of a software function module can be stored in a computer-readable storage medium, and the storage medium can be non-volatile or volatile. The above-mentioned software function module is stored in a storage medium, and includes a number of instructions for enabling a computer device (which can be a personal computer, a computer device, or a network device, etc.) or a processor to perform part of the functions of the internal force calculation method of the design section of the wall panel component based on Ansys described in various embodiments of the present application.

[0185] In one embodiment, a storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps implemented when the processor executes the computer program can also be implemented.

[0186] In summary, the present invention discloses a method, system, device and medium for calculating the internal force of the design section of a wall panel component. By defining an intersection line, selecting multiple calculation points, and then constructing a unit internal force calculation model based on the coordinates of these calculation points in a natural coordinate system, the stress of each calculation point is calculated, and finally the internal force of the design section is calculated, which avoids the complicated graphic element operation for each entity unit, greatly simplifies the calculation process, thereby improving the calculation efficiency, and can greatly improve the engineering efficiency for the case of processing a large number of entity units. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0187] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for calculating the internal force of the design section of a wall panel component based on Ansys, characterized in that: The method comprises: Based on Ansys, the wall panel components are split into multiple solid units; According to the thickness of the wall panel component, all the entity units are divided into a plurality of entity unit sets, and a local coordinate system is constructed for each entity unit set; For each entity element of the entity element set: in the local coordinate system, According to the shape of the solid unit, identifying the intersection line thereof; According to the intersection line, the design cross section is determined; Based on Ansys, obtaining the coordinates of the preset calculation points on the intersection line in the natural coordinate system; Based on the coordinates of each of the calculation points in the natural coordinate system, a unit internal force calculation model is constructed; wherein the unit internal force calculation model describes the interpolation relationship between the stress of the calculation point and the stress of all nodes of the solid unit in the local coordinate system; Calculating the stress of each calculation point based on the unit internal force calculation model; Based on the stress at each of the calculation points, the internal force of the design section is calculated.

2. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 1 is characterized in that: According to the thickness of the wall panel component, the step of dividing all the solid units into a plurality of solid unit sets comprises: Among all the entity units, the entity units belonging to the part of the same wall panel component with regularly changing thickness are divided into a entity unit set.

3. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 1 is characterized in that: According to the shape of the entity unit, the step of identifying the intersection line thereof comprises: According to the shape of the solid unit, two surface sections are obtained; Taking the centroid of any of the surface cross sections as a starting point, the shortest line segment among the straight line segments passing through the starting point and running through the two surface cross sections is calculated as their intersection line.

4. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 1 is characterized in that: According to the intersection line, the steps of determining the design section include: Based on Ansys, determining a section parallel to the xy plane of the local coordinate system according to the intersection line as a first design section; Based on Ansys, a section parallel to the yz plane of the local coordinate system is determined according to the intersection line as the second design section.

5. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 1 is characterized in that: When the solid unit is a hexahedron, the step of constructing a unit internal force calculation model based on the coordinates of each calculation point in the natural coordinate system includes: Obtaining the specified type stress values ​​of the eight nodes of the hexahedral solid element in the local coordinate system and their coordinate values ​​in the natural coordinate system; Construct the unit internal force calculation model according to the following formula: Among them, Stress I is the specified type stress value of node I in the local coordinate system. The coordinate value of node I in the natural coordinate system is (-1, 1, -1). J is the specified type stress value of node J in the local coordinate system. The coordinate value of node J in the natural coordinate system is (-1,-1,-1). K is the specified type stress value of node K in the local coordinate system. The coordinate value of node K in the natural coordinate system is (1,-1,-1). L is the specified type stress value of node L in the local coordinate system. The coordinate value of node L in the natural coordinate system is (1, 1, -1). M is the specified type stress value of node M in the local coordinate system. The coordinate value of node M in the natural coordinate system is (-1, 1, 1). N is the specified type stress value of node N in the local coordinate system. The coordinate value of node N in the natural coordinate system is (-1,-1,1). O is the specified type stress value of node O in the local coordinate system. The coordinate value of node O in the natural coordinate system is (1,-1,1). P is the specified type stress value of the node P in the local coordinate system, and the coordinate value of the node P in the natural coordinate system is (1,1,1). Stress is the specified type stress value of the specific calculation point in the local coordinate system, and the coordinate value of the specific calculation point in the natural coordinate system is (r,s,t).

6. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 1 is characterized in that: The step of calculating the internal force of the design section based on the stress of each of the calculation points comprises: Based on the stress of each of the calculation points, respectively calculate the axial forces of the first design section and the second design section; Based on the stress of each of the calculation points, respectively calculate the bending moments of the first design section and the second design section; Based on the stress of each of the calculation points, respectively calculate the shear force of the first design section and the second design section; Based on the stress of each of the calculation points, the torques of the first design section and the second design section are calculated respectively.

7. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 6 is characterized in that: The step of respectively calculating the axial forces of the first design section and the second design section based on the stress of each calculation point comprises: The axial force N1 in the normal direction of the first design section is calculated according to the following formula: The axial force N2 in the normal direction of the second design section is calculated according to the following formula: Where i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, Streee_σ z,i Represents the normal stress of the i-th calculation point in the z-axis direction of the local coordinate system, Stress_σ x,i represents the normal stress of the ith calculation point in the x-axis direction of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

8. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 6 is characterized in that: The step of respectively calculating the bending moments of the first design section and the second design section based on the stress of each calculation point comprises: The bending moment M1 of the first design section around the x-axis of the local coordinate system is calculated according to the following formula: The bending moment M2 of the second design section around the z-axis of the local coordinate system is calculated according to the following formula: Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_σ z,i Represents the normal stress of the i-th calculation point in the z-axis direction of the local coordinate system, Stress_σ x,i represents the normal stress of the ith calculation point in the x-axis direction of the local coordinate system, Δs represents the straight-line distance between two adjacent calculation points in the intersection line, and s i Represents the straight-line distance between the ith calculation point and the first calculation point.

9. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 6 is characterized in that: The step of respectively calculating the shear force of the first design section and the second design section based on the stress of each calculation point comprises: Based on the stress of each of the calculation points, a first shear force R1 of the first design cross section and a second shear force R2 of the second design cross section are calculated, wherein directions of the first shear force R1 and the second shear force R2 are parallel to the x-axis on the xy plane of the local coordinate system; Based on the stress of each of the calculation points, a third shear force Q1 of the first design section is calculated, wherein the direction of the third shear force Q1 is parallel to the y-axis on the xy plane of the local coordinate system; Based on the stress of each of the calculation points, the fourth shear force Q2 of the second design section is calculated, and the direction of the fourth shear force Q2 is parallel to the y-axis on the yz plane of the local coordinate system.

10. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 9 is characterized in that: The step of calculating the first shear force R1 of the first design section and the second shear force R2 of the second design section based on the stress of each of the calculation points comprises: The first shear force R1 of the first design section and the second shear force R2 of the second design section are calculated according to the following formula: Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xz,i represents the shear stress of the ith calculation point parallel to the z-axis direction on the xz plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

11. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 9, characterized in that: The step of calculating the third shear force Q1 of the first design section based on the stress of each of the calculation points comprises: The third shear force Q1 of the first design section is calculated according to the following formula: Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ yz,i represents the shear stress of the ith calculation point parallel to the y-axis direction on the yz plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

12. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 9, characterized in that: The step of calculating the fourth shear force Q2 of the second design section based on the stress of each of the calculation points comprises: The fourth shear force Q2 of the second design section is calculated according to the following formula: Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xy,i represents the shear stress of the ith calculation point parallel to the y-axis direction on the xy plane of the local coordinate system, and Δs represents the straight-line distance between two adjacent calculation points in the intersection line.

13. The internal force calculation method of the design section of the wall panel component based on Ansys according to claim 6, characterized in that: The step of respectively calculating the torque of the first design section and the second design section based on the stress of each of the calculation points comprises: The torque M around the normal line of the first design section or the second design section is calculated according to the following formula: 12 : Wherein, i represents the serial number of the calculation point, n+1 represents the number of the calculation points in one intersection line, and Stress_τ xz,i represents the shear stress of the ith calculation point parallel to the z-axis direction on the xz plane of the local coordinate system, Δs represents the straight-line distance between two adjacent calculation points in the intersection line, s i Represents the straight-line distance between the ith calculation point and the first calculation point.

14. An internal force calculation system for the design section of a wall panel component based on Ansys, characterized in that: include: Splitting module, used to split the wall panel components into multiple solid units based on Ansys; A first construction module is used to divide all the entity units into a plurality of entity unit sets according to the thickness of the wall panel component, and to construct a local coordinate system for each entity unit set; An identification module, configured to identify, for each entity unit in the entity unit set, an intersection line according to a shape of the entity unit in the local coordinate system; A determination module, used to determine the design cross section according to the intersection line; An acquisition module, used for acquiring the coordinates of the preset calculation points on the intersection line in the natural coordinate system based on Ansys; A second construction module is used to construct a unit internal force calculation model based on the coordinates of each calculation point in the natural coordinate system; wherein the unit internal force calculation model describes the interpolation relationship between the stress of the calculation point and the stress of all nodes of the solid unit in the local coordinate system; A first calculation module, used for calculating the stress of each calculation point based on the unit internal force calculation model; The second calculation module is used to calculate the internal force of the designed section based on the stress of each calculation point.

15. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method for calculating the internal force of the design section of the wall panel component based on Ansys are implemented as described in any one of claims 1 to 13.

16. A storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for calculating the internal force of the design section of a wall panel component based on Ansys are implemented as claimed in any one of claims 1 to 13.

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