34results about How to "Accurate design results" patented technology

The invention discloses a CAD and BIM-based batch deepening design method for fabricated structure laminated slabs. The method mainly comprises the steps of creating a laminated slab parametric designmodel suitable for CAD and BIM; deepening design splitting of the laminated slab is manually completed; manually finishing a laminated slab plane layout drawing; creating a laminated slab to deepen and design a drawing template; extracting laminated slab boundary contour lines and corresponding information tables in the laminated slab plane arrangement diagram in batches through a program; generating laminated slab deepening design parameters in batches; generating laminated slab deepening design drawings based on CAD in batches; and generating laminated slab BIM models in batches by a program. By means of the implementation of the method, the deepening design quality and efficiency of the assembly type structure laminated slab can be remarkably improved, the deepening design result is stored in the two-dimensional code, and intelligent construction of the laminated slab is facilitated.

The invention discloses a surface-mounted permanent magnet motor electromagnetic design method, and the method comprises the steps of simple magnetic circuit design and electromagnetic field finite element calculation of a permanent magnet motor. The simple magnetic circuit design mainly takes the technical requirements of the motor as input, and according to the basic formula of the motor electromagnetic design, the size of a stator core of the permanent magnet motor and the initial size of a rotor magnetic pole are determined; the electromagnetic field finite element calculation comprises static magnetic field calculation and transient magnetic field calculation, wherein the static magnetic field calculation is used for determining the radial size of a rotor magnetic pole, and the transient magnetic field calculation is used for determining the axial length of the motor. The method provided by the invention is not limited by the size of the permanent magnet motor, overcomes the defects of inaccurate coefficient and the like in an empirical formula in the traditional motor design and calculation process, considers the saturation characteristic of the motor in calculation, improves the accuracy of a calculation result, and is particularly suitable for design analysis of a surface-mounted permanent magnet motor.

The invention discloses an optimal design method of an LLC resonant converter, which includes: determining the transformation ratio of the transformer according to the design index of the LLC resonant converter; core shape, preliminarily design a transformer; measure the parasitic capacitance of the transformer; deduce the relationship between conduction loss and dead time, and obtain the optimal dead time when the conduction loss is the smallest; determine the optimal dead time according to the optimal dead time Optimal magnetizing inductance; select the inductance ratio and quality factor that can satisfy the gain condition; get the resonant inductance value and resonant capacitance value from the optimal magnetizing inductance, inductance ratio and resonant frequency; change the air gap of the transformer to make the magnetizing inductance equal to the optimal magnetizing inductance . This method solves the problem that the traditional LLC resonant converter design method relies too much on experience and is not accurate enough, makes the design result more accurate, and can be extended to various applications.

The invention provides a novel design method for direct-current inductance of a current source converter. The method comprises the following steps: 1, calculating parameters of a system, comprising a converter alternating-voltage amplitude value Vtm, a converter alternating-current phase-A voltage initial phase gamma, a modulation ratio m and a reference current angular displacement initial value theta 0; 2, calculating the maximum value of a volt-second constant according to volt-second balance principles; 3, considering influences of different modulation methods for ripples, finding possible maximum volt-second constants, and taking the maximum value in the possible maximum volt-second constants as C; 4, calculating the direct-current inductance. The novel design method for the direct-current inductance of the current source converter disclosed by the invention overall considers influences of various factors, and design results are very accurate; compared with the traditional design method, the design value of the direct-current inductance can be greatly reduced under same design requirements of the direct-current current ripples to greatly reduce the cost and the size of the direct-current inductance.

A CAD and WebGl-based method for deepening the design of prefabricated structural prefabricated columns and composite beams, belonging to the field of intelligent building technology, the method includes the following steps: Step 1: Establishing a parametric digital model of longitudinal bars, stirrups, and tie bars; 2: Create a column reinforcement table; Step 3: Identify the beam-column flat method construction drawing, extract the beam location and flat method information, column location information and column reinforcement table information; Step 4: Arrange the dynamic block of the beam end reinforcement; Step 5: Draw Column longitudinal reinforcement; Step 6: Carry out avoidance design of beam-column joint reinforcement in the plan construction drawing; Step 7: Extract beam-column joint reinforcement avoidance design information, generate beam-column component database and QR code; Step 8: Batch generate CAD-based Detailed design drawings of precast columns and composite beams; Step 9: Batch generation of Web-based detailed design models of prefabricated columns and composite beams. The invention can effectively improve the quality and efficiency of the deep design of prefabricated columns and composite beams of assembled structures.

The invention provides an optimum structural design method for a parabolic-arc seal head. The method comprises the following steps: 1, setting characteristic parameters and initial design parameters of the parabolic-arc seal head; 2, establishing a two-dimensional geometric model according to the characteristic parameters and the initial design parameters; 3, determining a corresponding function at a minimal stress of the two-dimensional geometric model as an objective function; 4, setting a variable range of the initial design parameters; 5, performing optimized analysis on the initial designparameters by setting constraints and loads so as to obtain stress intensity values corresponding to the initial design parameters by using finite element analysis software; 6, substituting the stress intensity values into the objective function, judging whether the objective function is convergent and meets constraint conditions, if not, modifying the initial design parameters and returning to the step 5; and 7, obtaining the optimized design parameters when the objective function is convergent and meets the constraint conditions.

The invention discloses a boundary element analysis method based on parameters of a commercial vehicle, which is characterized in that it comprises the following steps: 1) applying a regularly changing load; 2) obtaining a damping characteristic curve; 3) segmental weighting of the damping characteristic; 4 ) to establish a segmented weighted parameter set; 5) parameter boundary element extraction; 6) global boundary element design of the vehicle. This method can reasonably and accurately design the nonlinear damping, improve the accuracy of nonlinear scaling and matching, save the development cycle and cost, reduce the tuning cycle and facilitate the formation of a standard parameter scaling database for the model, which is convenient for the reduction of the same model. Vibration design provides a reference.

The invention relates to a meta-model-based complex product digital prototype generative design method. Comprising the following steps: S1, standardizing a design process; s2, generating a CAD digital prototype based on a meta-model; s3, generating a CAE digital prototype based on attribute extraction; s4, generating a CAM digital prototype based on MBD; according to the complex product digital prototype generative design method provided by the invention, uniqueness, consistency, reusability and integration of complex product customer demands in a product full life cycle stage are ensured, sharing, integration and application of complex equipment demand information are facilitated, and demand-driven rapid design of complex products is realized.

The invention discloses a simulation method and system of an automobile power tailgate. Based on the joint simulation design of kinematics and dynamics, model calculation is conducted with mechanical property parameters of the tailgate and external load parameters as input parameters, the fact that the tailgate hovers at any angle as a target function and the fact that manual operation force is minimized at the minimum relaxation rate of a spring as a constraint condition, and mechanical property output parameters meeting the model constraint condition are obtained. The input mechanical property parameters include tailgate parameters, motor parameters, screw parameters and / or reducer parameters, the external load parameters include manual operation force and anti-pinch force, and the output mechanical property parameters include parameters of a pole, parameters of the spring and installation positions of upper and lower spherical hinges on the pole.

The invention relates to a method for designing a color template of metallic glitter paint, comprising the steps of: obtaining a color design drawing of metallic glitter paint; collecting Lab values ​​of basic colors; making a color template of plain paint; collecting the Lab value of the color template of plain paint, Calculate the color difference value of the Lab value of the color sample of plain paint; compare the color difference value of the Lab value of the color sample of plain paint with the color difference value interval, if it does not fall in the color difference value interval, return to production The color sample of plain paint; otherwise, make the color sample of metallic flash paint; collect the color of the color sample of metallic flash paint from multiple angles; solidify the Lab value of the color sample of metallic flash paint collected each time, and then install all Import the Lab value set of the metallic glitter paint color template; output the color paste ratio, effect pigment ratio, and metallic glitter paint color template Lab value set. The invention greatly reduces the dependence on human eye recognition, greatly improves the accuracy of recognition and comparison, and makes the final design result more accurate and the error smaller.

The invention discloses a method for designing a room floor heating pipeline, which comprises the following steps: drawing a house type diagram of a room to be paved with floor heating, and obtaininga room area; Setting a floor heating construction area in the rendered room area; Set the distance between the ground heating pipes, and generate the ground heating wiring loop in the ground heating construction area. The method of the invention can intuitively and clearly show the design of the floor heating pipeline to the user, and improve the communication efficiency and the service quality before sale. At the same time, it is convenient to guide the construction work, reduce the construction errors caused by reading construction drawings, and improve the construction efficiency.

The invention relates to an integrated coil assembly with diversifying three-phase coils and a method for manufacturing the integrated coil. The integrated coil assembly comprises a first coil assembly, a second coil assembly, a third coil assembly and a fourth coil assembly; each coil assembly comprises a large-size coil loop, a medium-size coil loop and a small-size coil loop; the first coil assembly, the second coil assembly, the third coil assembly and the fourth coil assembly are mutually arranged in series; the large-size coil loop, the medium-size coil loop and the small-size coil loop of the first coil assembly are respectively and correspondingly connected to the small-size coil loop, the medium-size coil loop and the large-size coil loop of the second coil assembly; the small-size coil loop, the medium-size coil loop and the large-size coil loop of the second coil assembly are respectively and correspondingly connected to the large-size coil loop, the medium-size coil loop and the small-size coil loop of the third coil assembly; and the large-size coil loop, the medium-size coil loop and the small-size coil loop of the third coil assembly are respectively and correspondingly connected to the small-size coil loop, the medium-size coil loop and the large-size coil loop of the fourth coil assembly. By the integrated coil assembly, coils are compact at the two coil ends to save space, reduce the cost and the overall weight of the coil assembly and improve the motor efficiency. Moreover, the heat dispersion performance is improved to facilitate uniform distribution of heat.

The invention provides a method for designing the optical system of the thick-walled part including the diffusion hole that eliminates the dark area at the chamfer, by changing the collimation hole of the existing thick-walled part into a diffusion hole, or changing the collimation surface into a diffusion hole On the surface, through the diffused hole and the effect of scattering light on the diffused surface, the area of ​​the dark area caused by the chamfering of the original collimation hole is covered by the light scattered by the diffused hole, and the coverage of the dark area is passed through It is obtained from the precise calculation of the previous design, so it can well improve and solve the problems of dark areas and unevenness in conventional optical structures. Through the combination of theory and simulation fine-tuning in the early stage, the design result is more accurate, and there is no need for additional design or process adjustment in the later stage, and the feasibility of the mold will be greatly improved; the final optical effect will also be more controllable and uniform.

The invention provides a design method of a thick-wall part optical system comprising a diffusion hole for eliminating a dark area at a chamfer. According to the design method, a collimation hole of an existing thick-wall part is changed into a diffusion hole, or a collimation surface is changed into a diffusion surface; by means of the scattering effect of the diffusion hole and the diffusion surface on light, the area, caused by chamfering, of a dark area of the original collimation hole is covered with the light scattered by the diffusion hole, the coverage of the dark area is obtained through accurate calculation of earlier-stage design, and therefore the problems of the dark area and non-uniformity of a conventional optical structure can be well improved and solved. Through the designof combining the primary theory and simulation fine adjustment in the earlier stage, the design result is more accurate, additional design or process adjustment in the later stage is not needed, andthe mold feasibility is further greatly improved; and the final optical effect is more controllable and more uniform.

The invention discloses a room floor heating pipeline design system, which comprises a drawing module for drawing the room area; a data acquisition module for acquiring spatial information of the roomarea, information on the construction area of ground heating, set floor heating pipe spacing; a data processing module: wherein according to the data of the data acquisition module, a ground heatingwiring loop is generated in the ground heating construction area. The system of the invention can intuitively and clearly show the design of the floor heating pipeline to the user, and improve the communication efficiency and the service quality before sale. At the same time, it is convenient to guide the construction work, reduce the construction errors caused by reading construction drawings, and improve the construction efficiency.

The invention discloses a design method of a well cementation annulus slurry column structure. The design method comprises following steps: calculating the maximum pressure Pmax applied on the stratum by an annulus slurry column, wherein the maximum pressure Pmax is the pressure generated when the slurry is displaced in place during the well cementation construction; calculating the minimum pressure Pmin applied on an oil gas bed by the annulus slurry column, wherein the minimum pressure Pmin is the pressure generated when the rapidly cemented cement slurry loses weight during a cementing process; and determining whether the annulus slurry column structure is reasonable according to the maximum pressure Pmax and the minimum pressure Pmin. According to the design method, various pressures related to the annulus slurry column structure can be quantitatively calculated and contrasted, and the determined slurry column structure can stably press the oil gas bed and can prevent the leakage of the stratum. The design method is more scientific and reasonable.

The invention discloses an optimizing calculation method for design of a gravity anchor on calcareous rock soil. The method includes the steps that the component forces of the anchor chain load borne by the gravity anchor in the horizontal direction and the vertical direction are determined, and the saturated unit weight of undisturbed soil and an internal friction angle are determined; whether the undisturbed soil belongs to calcareous sand, calcareous gravel or calcareous rock is judged; the gravity of the gravity anchor is calculated, by means of an ABAQUS finite element tool, finite element models in which the gravity anchor and the undisturbed soil interact with each other are built for different basal areas, a horizontal bearing force-basal area relationship curve is drawn, the basal area corresponding to the largest horizontal bearing force is the optimal basal area of the gravity anchor, and then the width and the height of the bottom face of the gravity anchor are determined; and the number and the thickness of shearing force keys and the weight of the single shearing force key are determined, and therefore the structural type of the gravity anchor is determined. According to the optimizing calculation method for design of the gravity anchor on the calcareous rock soil, different friction coefficients can be selected according to different soil texture conditions of the calcareous rock soil, and influences of the friction force between the gravity anchor and the undisturbed soil and the depth of the sliding face on the horizontal bearing force of the gravity anchor are considered comprehensively.

The invention provides a novel design method for direct-current inductance of a current source converter. The method comprises the following steps: 1, calculating parameters of a system, comprising a converter alternating-voltage amplitude value Vtm, a converter alternating-current phase-A voltage initial phase gamma, a modulation ratio m and a reference current angular displacement initial value theta 0; 2, calculating the maximum value of a volt-second constant according to volt-second balance principles; 3, considering influences of different modulation methods for ripples, finding possible maximum volt-second constants, and taking the maximum value in the possible maximum volt-second constants as C; 4, calculating the direct-current inductance. The novel design method for the direct-current inductance of the current source converter disclosed by the invention overall considers influences of various factors, and design results are very accurate; compared with the traditional design method, the design value of the direct-current inductance can be greatly reduced under same design requirements of the direct-current current ripples to greatly reduce the cost and the size of the direct-current inductance.

The invention relates to a method for analyzing radiation properties of high-resolution SAR (synthetic aperture radar) satellites, and belongs to the technical field of overall designs of SAR satellites. The method has the advantages that radiation property indexes of various satellite-borne SAR working modes are accurately computed, and system design results are inspected and rechecked for the high-resolution SAR satellites and the high-resolution SAR satellites in variable-repetition-frequency modes in particular; echo signal energy starts to be computed point by point along imaging time from single-pulse radar equations, accordingly, time-dependent variation conditions of antenna gain, ground-object back-scattering coefficients, slope distances and radar scattering areas of the SAR satellites can be sufficiently reflected, accurate imaging echo signal energy can be obtained, and the accurate radiation property indexes of the high-resolution SAR satellites further can be obtained.

The invention discloses an electromagnetic design method of a surface-mounted permanent magnet motor, which includes a brief magnetic circuit design and electromagnetic field finite element calculation of the permanent magnet motor. The brief magnetic circuit design is mainly based on the technical requirements of the motor as input, according to the The basic formula of electromagnetic design, which determines the size contained in the stator core of the permanent magnet motor and the preliminary size of the rotor pole; the finite element calculation of the electromagnetic field includes static magnetic field calculation and transient magnetic field calculation, and the static magnetic field calculation is used to determine The radial dimension of the rotor poles, the transient magnetic field calculation described is used to determine the axial length of the motor. The method involved in the invention is not limited by the size of the permanent magnet motor, and overcomes the inaccurate coefficients in the empirical formula of the traditional motor design and calculation process. At the same time, the invention considers the saturation characteristics of the motor in the calculation, and improves the accuracy of the calculation results. It is especially suitable for the design analysis of surface-mounted permanent magnet motors.