Vibration minimization assembly method for large-scale high-speed rotating equipment based on datum unification and multi-constraints

Abstract

The present invention discloses a vibration minimization assembly method and system for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints, belonging to the technical field of large-scale high-speed rotating equipment assembly. The method comprises: determining the mass center deviation and shape center deviation of multi-stage large-scale high-speed rotating equipment in the measuring axis coordinate system; solving the rotation matrix between the measuring axis coordinate system and the assembly axis coordinate system based on the shape center deviation; solving the minimum vibration of the large-scale high-speed rotating equipment in the assembly axis coordinate system based on the rotation matrix; and solving the assembly angle of the large-scale high-speed rotating equipment in the assembly axis coordinate system based on the minimum vibration. This method not only achieves the minimum vibration of the large-scale high-speed rotating equipment after assembly, but also realizes the constraints on coaxiality and imbalance, which is of great significance to the improvement of the assembly and dynamic performance of large-scale high-speed rotating equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of large-scale high-speed rotating equipment assembly, and in particular to a vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints. Background Art

[0002] The unbalanced excitation force generated by the center of mass offset from the actual rotation axis during assembly of large-scale high-speed rotating equipment is a major cause of vibration in the entire machine. Vibration not only significantly degrades performance but can also cause failures. To effectively reduce vibration in large-scale high-speed rotating equipment, improve the efficiency and reliability of large-scale high-speed rotating equipment systems, and ensure safe and stable operation of the entire machine, the key issue of controlling the unbalanced excitation force of large-scale high-speed rotating equipment and achieving combined vibration suppression is urgently needed. Numerous researchers have conducted research on stacking methods and errors in large-scale high-speed rotating equipment. Some have optimized the assembly of large-scale high-speed rotating equipment based on tolerance allocation requirements during assembly design. Others have analyzed the error propagation and accumulation process during the assembly of multi-stage large-scale high-speed rotating equipment, using space vector projection methods to determine the accumulated eccentricity errors of each stage after assembly, thereby achieving assembly control for large-scale high-speed rotating equipment. Others have proposed dual-objective optimization models for stacking large-scale high-speed rotating equipment, focusing on both coaxiality and unbalance. However, existing models only consider geometric errors and mass characteristics, but fail to consider the dynamic characteristics of large-scale high-speed rotating equipment. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, the first purpose of the present invention is to propose a vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints. This method takes into account the dynamic characteristics of large-scale high-speed rotating equipment on the basis of considering the stacking transmission of geometric parameter errors and mass parameter errors of single-stage large-scale high-speed rotating equipment.

[0005] The second object of the present invention is to propose a vibration minimization assembly system for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints.

[0006] A third object of the present invention is to provide a computer device.

[0007] A fourth object of the present invention is to provide a non-transitory computer-readable storage medium.

[0008] To achieve the above-mentioned purpose, an embodiment of the present invention proposes a vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints, including the following steps: Step S1, determining the center of mass deviation and centroid deviation of multi-stage large-scale high-speed rotating equipment in the measuring axis coordinate system; Step S2, solving the rotation matrix between the measuring axis coordinate system and the assembly axis coordinate system based on the centroid deviation; Step S3, solving the minimum vibration of the large-scale high-speed rotating equipment in the assembly axis coordinate system based on the rotation matrix; Step S4, solving the assembly angle of the large-scale high-speed rotating equipment in the assembly axis coordinate system based on the minimum vibration.

[0009] The embodiment of the present invention provides a vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints. On the basis of considering the stacking transmission of geometric parameter errors and mass parameter errors of single-stage large-scale high-speed rotating equipment, it also takes into account the dynamic characteristics of large-scale high-speed rotating equipment. The assembly method for large-scale high-speed rotating equipment takes the vibration of large-scale high-speed rotating equipment as the optimization target and coaxiality and unbalance as constraints. An assembly model of large-scale high-speed rotating equipment based on the assembly axis coordinate system is established. That is to say, on the basis of achieving the minimum vibration of large-scale high-speed rotating equipment after assembly, the constraints on coaxiality and unbalance are simultaneously realized, which is of great significance to the improvement of the assembly and dynamic performance of large-scale high-speed rotating equipment.

[0010] In addition, the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints according to the above embodiment of the present invention may also have the following additional technical features:

[0011] Furthermore, in one embodiment of the present invention, the step S1 specifically includes: step S101, assembling the kth level large-scale high-speed rotating equipment using a stacking method in the measuring axis coordinate system to determine the center of mass deviation; step S102, determining the centroid deviation of the kth level large-scale high-speed rotating equipment after assembly in the measuring axis coordinate system.

[0012] Furthermore, in one embodiment of the present invention, the position vector of the center of mass deviation is:

[0013]

[0014] in, are the cumulative mass center deviations of the k-level large-scale high-speed rotary equipment in the X, Y and Z directions, is the rotation matrix of the j-th level large high-speed rotating equipment, is the geometric eccentricity deviation matrix of the j-th large-scale high-speed rotary equipment, and 1≤j≤i-1, is the rotation matrix of the i-th level large high-speed rotating equipment, is the geometric eccentricity deviation matrix of the i-th level large high-speed rotary equipment, is the geometric center position vector matrix of the i-th level large high-speed rotary equipment, is the geometric center position vector matrix of the kth level large high-speed rotating equipment.

[0015] Furthermore, in one embodiment of the present invention, the position vector of the centroid deviation is:

[0016]

[0017] in, are the cumulative centroid deviations of the k-level large-scale high-speed rotary equipment in the X, Y and Z directions, is the rotation matrix of the j-th level large high-speed rotating equipment, is the geometric eccentricity deviation matrix of the j-th large-scale high-speed rotary equipment, and 1≤j≤i-1, is the rotation matrix of the i-th level large high-speed rotating equipment, is the geometric center position vector matrix of the i-th level large high-speed rotating equipment.

[0018] Furthermore, in one embodiment of the present invention, the step S2 specifically includes: step S201, the center O of the lower end face of the first-level large-scale high-speed rotating equipment and the center O of the upper end face of the highest-level large-scale high-speed rotating equipment are aligned. nA The connecting line is used as the actual rotation axis; Step S202, the measurement axis coordinate system is rotated around the actual rotation axis to obtain the assembly axis coordinate system; Step S203, the center of the circle O is solved according to the centroid deviation. nA The first position vector in the measuring axis coordinate system and the center O nA A second position vector in the assembly axis coordinate system; step S204, determining the direction vector and rotation angle of the actual rotation axis according to the first position vector and the second position vector; step S205, solving the rotation matrix according to the direction vector and the rotation angle.

[0019] Furthermore, in one embodiment of the present invention, the step S3 specifically includes: step S301, setting the third position vector of the center of mass of the k-th large-scale high-speed rotating equipment in the assembly axis coordinate system; step S302, performing coordinate transformation on the third position vector according to the rotation matrix; step S303, obtaining the rotation angular velocity of the large-scale high-speed rotating equipment, and solving the unbalanced response based on the third position vector after coordinate transformation and the rotation angular velocity.

[0020] Furthermore, in one embodiment of the present invention, in step S4, large-scale high-speed rotating equipment is assembled with the minimum vibration as the optimization goal, while the imbalance and coaxiality of the large-scale high-speed rotating equipment are constrained to solve the assembly angle.

[0021] To achieve the above-mentioned purpose, another embodiment of the present invention proposes a vibration minimization assembly system for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints, including: a determination module for determining the center of mass deviation and centroid deviation of multi-stage large-scale high-speed rotating equipment in the measuring axis coordinate system; a rotation matrix solving module for solving the rotation matrix between the measuring axis coordinate system and the assembly axis coordinate system according to the centroid deviation; a minimum vibration solving module for solving the minimum vibration of the large-scale high-speed rotating equipment in the assembly axis coordinate system according to the rotation matrix; and an equipment solving module for solving the assembly angle of the large-scale high-speed rotating equipment in the assembly axis coordinate system according to the minimum vibration.

[0022] The embodiment of the present invention is a large-scale high-speed rotating equipment vibration minimization assembly system based on benchmark unification and multiple constraints. On the basis of considering the stacking transmission of geometric parameter errors and mass parameter errors of single-stage large-scale high-speed rotating equipment, it takes into account the dynamic characteristics of large-scale high-speed rotating equipment. It takes the vibration of large-scale high-speed rotating equipment as the optimization goal and the assembly method of large-scale high-speed rotating equipment with coaxiality and unbalance as constraints. It establishes a large-scale high-speed rotating equipment assembly model based on the assembly axis coordinate system. That is to say, on the basis of achieving the minimum vibration of large-scale high-speed rotating equipment after assembly, it also realizes the constraints on coaxiality and unbalance, which is of great significance to the improvement of the assembly and dynamic performance of large-scale high-speed rotating equipment.

[0023] A third aspect of the present invention provides a computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints as described in the above embodiment is implemented.

[0024] The fourth aspect of the present invention provides a non-temporary computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it implements the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints as described in the above embodiment.

[0025] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0027] Figure 1This is a flow chart of a vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints according to one embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the actual assembly axis and measurement axis of a high-speed rotary equipment according to an embodiment of the present invention;

[0029] Figure 3 The present invention is a schematic structural diagram of a large-scale high-speed rotating equipment vibration minimization assembly system based on benchmark unification and multiple constraints according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0031] The following describes the vibration minimization assembly method and system for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints proposed in accordance with an embodiment of the present invention with reference to the accompanying drawings. First, the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints proposed in accordance with an embodiment of the present invention will be described with reference to the accompanying drawings.

[0032] Figure 1 The present invention is a flowchart of a vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints in one embodiment of the present invention.

[0033] like Figure 1 As shown, the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints includes the following steps:

[0034] In step S1, the center of mass deviation and the center of shape deviation of the multi-stage large-scale high-speed rotating equipment are determined in the measuring axis coordinate system.

[0035] Specifically, in the measurement axis coordinate system OXYZ, the stacking method is used to assemble the k-th level of large-scale high-speed rotary equipment to determine the center of mass deviation, where the position vector of the center of mass deviation can be expressed as:

[0036]

[0037] in, are the cumulative mass center deviations of the k-level large-scale high-speed rotary equipment in the X, Y and Z directions, is the rotation matrix of the j-th level large high-speed rotating equipment, is the geometric eccentricity deviation matrix of the j-th large-scale high-speed rotating equipment, and 1≤j≤i-1.

[0038] In the measuring axis coordinate system OXYZ, determine the center of the measuring surface of the k-th level large high-speed rotary equipment after assembly, that is, the centroid deviation. The position vector of the center of the surface can be expressed as:

[0039]

[0040] in, are the cumulative centroid deviations of the k-level large-scale high-speed rotary equipment in the X, Y and Z directions, is the rotation matrix of the j-th level large high-speed rotating equipment, is the geometric eccentricity deviation matrix of the j-th large-scale high-speed rotating equipment, and 1≤j≤i-1.

[0041] in, is the rotation matrix of the i-th level large high-speed rotating equipment, which can be expressed as:

[0042]

[0043] Where θ ri It is the rotation angle of the i-th level large-scale high-speed rotating equipment around the rotation axis.

[0044] is the geometric eccentricity deviation matrix of the i-th level large high-speed rotary equipment, which can be expressed as:

[0045]

[0046] Where θ ti is the inclination angle of the assembly surface of the i-th level large-scale high-speed rotary equipment relative to the reference plane; θ li It is the location of the inclination angle of the assembly surface of the i-th level large-scale high-speed rotary equipment.

[0047] It is the geometric center position vector matrix of the i-th level large high-speed rotating equipment.

[0048]

[0049] Where, are the position vectors of the center of the i-th level large high-speed rotary equipment in the XOYZ coordinate system.

[0050] is the position vector matrix of the mass center of the i-th level large high-speed rotary equipment, which can be expressed as:

[0051]

[0052] Where, are the position vectors of the center of mass of the i-th large-scale high-speed rotating equipment in the XOYZ coordinate system.

[0053] In step S2, the rotation matrix between the measurement axis coordinate system and the assembly axis coordinate system is solved according to the centroid deviation.

[0054] Furthermore, in one embodiment of the present invention, step S2 specifically includes:

[0055] Step S201: Align the center O of the lower end face of the first-level large-scale high-speed rotating equipment with the center O of the upper end face of the highest-level large-scale high-speed rotating equipment. nA The connecting line serves as the actual rotation axis;

[0056] Step S202 , rotating the measurement axis coordinate system around the actual rotation axis to obtain the assembly axis coordinate system;

[0057] Step S203, solving the circle center O according to the centroid deviation nA The first position vector in the measuring axis coordinate system and the center O nA The second position vector in the assembly axis coordinate system;

[0058] Step S204, determining the direction vector and rotation angle of the actual rotation axis according to the first position vector and the second position vector;

[0059] Step S205: Solve the rotation matrix according to the direction vector and the rotation angle.

[0060] Specifically, if Figure 2 As shown in the figure, after the large-scale high-speed rotating equipment is assembled, the center line of the bearings at both ends of the multi-stage large-scale high-speed rotating equipment is connected with the center O of the lower end face of the first-stage large-scale high-speed rotating equipment and the center O of the upper end face of the highest-stage large-scale high-speed rotating equipment. nA The connecting line is taken as the actual rotation axis. The assembly axis coordinate system OX′Y′Z′ can be regarded as the measurement axis coordinate system OXYZ obtained by rotating θ around the rotation axis where the origin O is located. Let the rotation axis direction vector l be (l x ,l y ,l z ) T , the unit vector of this vector The rotation axis direction vector l and the rotation angle θ can be expressed by the vector OO nA The changes in the coordinate systems OXYZ and OX′Y′Z′ are obtained respectively.

[0061] According to formula (2), find the center O nA The position vector in the coordinate system OXYZ represents the vector P(O nAx ,O nAy ,O nAz ) T According to the geometric relationship, the center of the circle O nAThe position vector in the coordinate system OX′Y′Z′ can be expressed as Q(0,0,O nAz ') T ,in Then the rotation axis direction vector l and the rotation angle θ are as shown in equations (7) and (8):

[0062]

[0063]

[0064] Use the center of the circle The position vectors in the coordinate system OXYZ and the coordinate system OX′Y′Z′ can be expressed as the rotation matrix A:

[0065]

[0066] In step S3, the minimum vibration of the large-scale high-speed rotating equipment in the assembly axis coordinate system is solved according to the rotation matrix.

[0067] Furthermore, in one embodiment of the present invention, step S3 specifically includes:

[0068] Step S301, setting the third position vector of the mass center of the k-th level large-scale high-speed rotary equipment in the assembly axis coordinate system;

[0069] Step S302, performing coordinate transformation on the third position vector according to the rotation matrix;

[0070] Step S303: Obtain the rotational angular velocity of the large-scale high-speed rotating equipment, and solve the unbalance response according to the third position vector after coordinate transformation and the rotational angular velocity.

[0071] Specifically, let the position vector of the mass center of the k-th large-scale high-speed rotary equipment in the coordinate system OX′Y′Z′ be According to the coordinate transformation relationship, we can get:

[0072]

[0073] When the rotation angular velocity of large-scale high-speed rotating equipment is Ω, the unbalanced exciting force Q generated by the mass center offset of each level of large-scale high-speed rotating equipment in the coordinate system OX′Y′Z′ is r As shown in the formula:

[0074]

[0075] Solving equation (11), the unbalanced response can be expressed as:

[0076]

[0077] Where q′ represents the initial amplitude, Indicates the initial phase.

[0078] In step S4, the assembly angle of the large-scale high-speed rotating equipment in the assembly axis coordinate system is solved according to the minimum vibration.

[0079] Furthermore, in one embodiment of the present invention, in step S4, large-scale high-speed rotating equipment is assembled with minimum vibration as the optimization goal, while the imbalance and coaxiality of the large-scale high-speed rotating equipment are constrained to solve the assembly angle.

[0080] Specifically, the assembly of large-scale high-speed rotating equipment is carried out with the minimum vibration of large-scale high-speed rotating equipment as the optimization goal, and the imbalance and coaxiality of large-scale high-speed rotating equipment are constrained at the same time. The assembly model of large-scale high-speed rotating equipment is shown in formula (13):

[0081]

[0082] Where q doule The vibration amplitude of large high-speed rotating equipment after assembly under the constraints of coaxiality and unbalance. Indicates the vibration amplitude in the Y′ direction of large high-speed rotating equipment in the assembly axis coordinate system, Indicates the vibration amplitude in the Z′ direction of large high-speed rotating equipment in the assembly axis coordinate system. The specific coordinate system direction is shown in Figure 2 . c(θ rk ) represents the coaxiality of the k-level large high-speed rotary equipment after assembly, c nlimit Indicates the maximum allowable coaxiality of k-class large-scale high-speed rotary equipment after assembly, u(θ rk ) represents the unbalance amount of k-level large-scale high-speed rotating equipment after assembly; u nlimit They represent the maximum allowable unbalance of k-level large-scale high-speed rotary equipment after assembly, t rk represents the number of bolt holes of the k-th level large high-speed rotating equipment, θ rk Indicates the assembly angle of large high-speed rotating equipment.

[0083] In other words, the optimal assembly angle of large-scale high-speed rotary equipment can be obtained through formula (13).

[0084] According to the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints proposed in an embodiment of the present invention, the dynamic characteristics of large-scale high-speed rotating equipment are taken into consideration on the basis of considering the stacking transmission of geometric parameter errors and mass parameter errors of single-stage large-scale high-speed rotating equipment. The large-scale high-speed rotating equipment assembly method takes the vibration of large-scale high-speed rotating equipment as the optimization goal and the coaxiality and unbalance as constraints, and establishes a large-scale high-speed rotating equipment assembly model based on the assembly axis coordinate system. That is to say, on the basis of achieving the minimum vibration of the large-scale high-speed rotating equipment after assembly, the constraints on coaxiality and unbalance are simultaneously realized, which is of great significance to the improvement of the assembly and dynamic performance of large-scale high-speed rotating equipment.

[0085] Next, a vibration minimization assembly system for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints proposed in an embodiment of the present invention will be described with reference to the accompanying drawings.

[0086] Figure 3 The present invention is a schematic structural diagram of a large-scale high-speed rotating equipment vibration minimization assembly system based on benchmark unification and multiple constraints according to an embodiment of the present invention.

[0087] like Figure 3 As shown, the system 10 includes: a determination module 100 , a rotation matrix solving module 200 , a minimum vibration solving module 300 and an equipment solving module 400 .

[0088] The determination module 100 is used to determine the center of mass deviation and centroid deviation of multi-stage large-scale high-speed rotating equipment in the measurement axis coordinate system. The rotation matrix solution module 200 is used to solve the rotation matrix between the measurement axis coordinate system and the assembly axis coordinate system based on the centroid deviation. The minimum vibration solution module 300 is used to solve the minimum vibration of the large-scale high-speed rotating equipment in the assembly axis coordinate system based on the rotation matrix. The equipment solution module 400 is used to solve the assembly angle of the large-scale high-speed rotating equipment in the assembly axis coordinate system based on the minimum vibration.

[0089] It should be noted that the above explanation of the embodiment of the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints is also applicable to the system of this embodiment and will not be repeated here.

[0090] According to the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints proposed in an embodiment of the present invention, the dynamic characteristics of large-scale high-speed rotating equipment are taken into consideration on the basis of considering the stacking transmission of geometric parameter errors and mass parameter errors of single-stage large-scale high-speed rotating equipment. The large-scale high-speed rotating equipment assembly method takes the vibration of large-scale high-speed rotating equipment as the optimization goal and the coaxiality and unbalance as constraints, and establishes a large-scale high-speed rotating equipment assembly model based on the assembly axis coordinate system. That is to say, on the basis of achieving the minimum vibration of the large-scale high-speed rotating equipment after assembly, the constraints on coaxiality and unbalance are simultaneously realized, which is of great significance to the improvement of the assembly and dynamic performance of large-scale high-speed rotating equipment.

[0091] In order to implement the above embodiments, the present invention also proposes a computer device, including a memory, a processor, and a computer program stored in the memory and runable on the processor. When the processor executes the computer program, the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints as described in the above embodiments is implemented.

[0092] In order to implement the above embodiments, the present invention also proposes a non-temporary computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it implements the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints as described in the above embodiments.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0094] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "N" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0095] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing a custom logical function or step of a process, and the scope of the preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of the invention pertain.

[0096] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or N wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0097] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having logic gate circuits for implementing logic functions on data signals, an application-specific integrated circuit having suitable combinational logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0098] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0099] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing module, or each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

[0100] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limiting the present invention. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints, characterized in that: The following steps are involved: Step S1, determining the center of mass deviation and center of shape deviation of the multi-stage large-scale high-speed rotating equipment in the measuring axis coordinate system; Step S2, solving the rotation matrix between the measurement axis coordinate system and the assembly axis coordinate system according to the centroid deviation, and the step S2 specifically includes: Step S201: The center of the lower end face of the first-stage large-scale high-speed rotary equipment O and the center of the upper end face of the most advanced large-scale high-speed rotary equipment The connecting line serves as the actual rotation axis; Step S202, rotating the measurement axis coordinate system around the actual rotation axis to obtain the assembly axis coordinate system; Step S203: Calculate the center of the circle based on the centroid deviation. The first position vector in the measuring axis coordinate system, and the center of the circle a second position vector in the assembly axis coordinate system; Step S204, determining the direction vector and rotation angle of the actual rotation axis according to the first position vector and the second position vector; Step S205, solving the rotation matrix according to the direction vector and the rotation angle; Step S3, solving the minimum vibration of the large-scale high-speed rotating equipment in the assembly axis coordinate system according to the rotation matrix, and the step S3 specifically includes: Step S301, set k The third position vector of the center of mass of the large-scale high-speed rotary equipment in the assembly axis coordinate system; Step S302, performing coordinate transformation on the third position vector according to the rotation matrix; Step S303, obtaining the rotational angular velocity of the large-scale high-speed rotating equipment, and solving the unbalanced response according to the third position vector after coordinate conversion and the rotational angular velocity; Step S4: calculating the assembly angle of the large-scale high-speed rotating equipment in the assembly axis coordinate system according to the minimum vibration.

2. The vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints according to claim 1 is characterized in that: The step S1 specifically includes: Step S101: assemble the first k Large-scale high-speed rotating equipment to determine the center of mass deviation; Step S102, determining the first k Centroid deviation of large-scale high-speed rotating equipment.

3. The vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints according to claim 2 is characterized in that: The position vector of the center of mass deviation is: in, 、 、 They are k Large-scale high-speed rotary equipment X 、 Y and Z The cumulative centroid deviation in the direction, For the j The rotation matrix of large-scale high-speed rotating equipment, For the j The geometric eccentricity deviation matrix of large-scale high-speed rotary equipment, and 1≤ j ≤ i -1, For the i The rotation matrix of large-scale high-speed rotating equipment, For the i The geometric eccentricity deviation matrix of large-scale high-speed rotary equipment, For the i The geometric center position vector matrix of large-scale high-speed rotary equipment, For the k The geometric center position vector matrix of large-scale high-speed rotating equipment.

4. The vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints according to claim 2 is characterized in that: The position vector of the centroid deviation is: in, 、 、 They are k Large-scale high-speed rotary equipment X 、 Y and Z Cumulative centroid deviation in direction, For the j The rotation matrix of large-scale high-speed rotating equipment, For the j The geometric eccentricity deviation matrix of large-scale high-speed rotary equipment, and 1≤ j ≤ i -1, For the i The rotation matrix of large-scale high-speed rotating equipment, For the i The geometric center position vector matrix of large-scale high-speed rotating equipment.

5. The vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints according to claim 1 is characterized in that: In step S4, the large-scale high-speed rotating equipment is assembled with the minimum vibration as the optimization goal, while the imbalance and coaxiality of the large-scale high-speed rotating equipment are constrained to solve the assembly angle.

6. A vibration minimization assembly system for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints, which implements the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints as described in any one of claims 1 to 5, characterized in that: include: Determination module, used to determine the center of mass deviation and centroid deviation of multi-stage large-scale high-speed rotating equipment in the measuring axis coordinate system; A rotation matrix solving module, used for solving the rotation matrix between the measurement axis coordinate system and the assembly axis coordinate system according to the centroid deviation; A minimum vibration solving module, used for solving the minimum vibration of the large high-speed rotating equipment in the assembly axis coordinate system according to the rotation matrix; The equipment solving module is used to solve the assembly angle of the large-scale high-speed rotating equipment in the assembly axis coordinate system according to the minimum vibration.

7. A computer device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints as described in any one of claims 1 to 5 is implemented.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the vibration minimization assembly method for large-scale high-speed rotating equipment based on benchmark unification and multiple constraints as described in any one of claims 1 to 5 is implemented.

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