CN101639868B - Method for designing counterweight by simulation analysis of computer - Google Patents
Method for designing counterweight by simulation analysis of computer Download PDFInfo
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- CN101639868B CN101639868B CN 200810142567 CN200810142567A CN101639868B CN 101639868 B CN101639868 B CN 101639868B CN 200810142567 CN200810142567 CN 200810142567 CN 200810142567 A CN200810142567 A CN 200810142567A CN 101639868 B CN101639868 B CN 101639868B
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Abstract
The invention relates to the technical field of virtual design, and discloses a method for designing counterweight by simulation analysis of a computer. The method comprises the following steps: establishing three-dimensional models for each part of a mechanical product and a counterweight part thereof through an auxiliary design tool of the computer; virtually assembling the mechanical product and the counterweight part thereof to obtain a three-dimensional assembly model of the mechanical product with the counterweight; establishing a structure vibration analysis model of the three-dimensional assembly model; setting analysis parameters to carry out structural frequency response analysis; and postprocessing a result acquired by the analysis to acquire vibratory response when the mechanical product is added with the counterweight. The embodiment of the invention can greatly shorten the designing period for the counterweight part, and reduce designing cost.
Description
Technical field
The present invention relates to technical field of virtual design, relate in particular to counterweight Computer Analysis method for designing.
Background technology
Along with the raising of market, also increasingly high to the accuracy requirement of PCB process equipment to the integrated requirement of component height.The main shaft portion of general PCB process equipment is positioned at a side of crossbeam, makes crossbeam stressed asymmetric, and it is asymmetric and weight is heavier to add this body structure of crossbeam, and the quiet distortion of crossbeam is bigger, and is just bigger at the displacement deformation of the dynamic condition sill of work.This has had a strong impact on the raising of PCB process equipment precision.Therefore the crossbeam counterbalance design is very urgent.
Traditional counterbalance design generally all is that the experience according to the designer designs and layout; Producing model machine makes an experiment; Test its actual dynamic performance; Produce in batches if performance has clear improvement, if not do not improve or improve very little then design counterweight again, mockup makes an experiment again again.Obviously traditional design will spend great amount of time, manpower and fund.Nowadays in machine tool field; Machine Tool design is generally all used various CASE(Computer Aided Software Engineering) and is realized; The design of counterweight is generally adopted three-dimensional CAD software to carry out the experience modeling to carry out statics checking again; Though this method for designing has guaranteed the improvement of counterweight to the product static properties, the dynamic property of product and vibration characteristics are difficult to still ensure that the processing characteristics that whether can really effectively improve product is difficult to confirm; Therefore need the mockup test that makes an experiment equally, cause the design cost of product still higher.
Summary of the invention
The present invention provides a kind of method for designing counterweight by simulation analysis of computer, can reduce the counterbalance design cost of engineering goods.
A kind of method for designing counterweight by simulation analysis of computer comprises:
Set up the three-dimensional model of engineering goods and each part of counterweight part thereof through cad tools;
Said engineering goods and counterweight part thereof are carried out virtual assembling, obtain the three-dimensional assembling model that said engineering goods add counterweight;
Set up the structural vibration analysis model of said three-dimensional assembling model;
Analytical parameters is set, carries out structural frequency response analysis;
Carry out aftertreatment to carrying out the result that said analysis obtained, the vibratory response when obtaining said engineering goods and adding counterweight.
Wherein, the said structural vibration analysis model finite element analysis model that specifically is structural vibration.
Wherein, the said structural vibration analysis model of setting up said three-dimensional assembling model specifically comprises:
Said three-dimensional assembling model is imported finite element analysis software, as the geometric model of structural vibration analysis;
The division unit grid;
Topological structure according to said engineering goods and counterweight part thereof is created the linkage unit between parts;
The load working condition of definition boundary condition, frequency dependence, the field of frequency dependence and the load of frequency dependence;
Definition material properties and cell attribute.
Also comprise after the vibratory response when wherein, obtaining said engineering goods and add counterweight:
Said vibratory response is analyzed,, then accomplished the counterbalance design of said engineering goods if this vibratory response meets predetermined designing requirement, otherwise, after counterweight part revised, carry out above-mentioned analysis again.
Wherein, said vibratory response being analyzed specifically is to realize through the vibratory response of the said engineering goods that add counterweight and the acquired vibratory response that does not add the engineering goods of counterweight are compared.
In the embodiment of the invention,, can carry out analyses and prediction to the counterweight part that is designed to the influence of engineering goods vibration characteristics through the method for computer simulation analysis earlier, counterbalance design is assessed and instructed in the design phase of counterweight.Each counterbalance design all needs mockup to test effect in the designing technique owing to can avoid having now, so the embodiment of the invention can shorten the design cycle of counterweight part, the reduction design cost greatly.
Description of drawings
Fig. 1 illustrates the process flow diagram of method for designing counterweight by simulation analysis of computer embodiment one of the present invention;
Fig. 2 illustrates the process flow diagram of method for designing counterweight by simulation analysis of computer embodiment two of the present invention;
Fig. 3 illustrates the three-dimensional model of two PCB numerically controlled drill crossbeam and main shaft portion among the method for designing counterweight by simulation analysis of computer embodiment two of the present invention;
Fig. 4 illustrates the topology diagram of method for designing counterweight by simulation analysis of computer embodiment two middle cross beams of the present invention and Z shaft portion main parts size;
Fig. 5 illustrates the displacement frequency response of test point 1,2 when not adding counterweight among the method for designing counterweight by simulation analysis of computer embodiment two of the present invention;
Fig. 6 illustrates the displacement frequency response of test point 1,2 when adding counterweight among the method for designing counterweight by simulation analysis of computer embodiment two of the present invention.
Embodiment
Preferred embodiment in the face of method for designing counterweight by simulation analysis of computer provided by the invention is elaborated down.
With reference to figure 1, method for designing counterweight by simulation analysis of computer embodiment one of the present invention comprises:
A1, set up the 3-D geometric model of engineering goods and counterweight part thereof through cad tools.
A2, the 3-D geometric model of said engineering goods and counterweight part thereof is carried out virtual assembling, obtain the three-dimensional assembling model that said engineering goods add counterweight.
A3, set up the structural vibration analysis model of said three-dimensional assembling model.
A4, analytical parameters is set, carries out structural frequency response analysis.
A5, should analyze the result who is obtained and carry out aftertreatment, the vibratory response when obtaining said engineering goods and adding counterweight carrying out structural frequency response.
Wherein, the said structural vibration analysis model finite element analysis model that specifically is structural vibration.
Wherein, A3 specifically can comprise:
B1, said three-dimensional assembling model is imported finite element analysis software, as the geometric model of structural vibration analysis.
B2, division unit grid.
B3, create linkage unit according to the topological structure of said engineering goods and counterweight part thereof.
The load working condition of B4, definition boundary condition, frequency dependence, the field of frequency dependence and the load of frequency dependence;
B5, definition material properties and cell attribute.
Wherein, also to analyze after the vibratory response when the said engineering goods of acquisition add counterweight, if this vibratory response meets predetermined designing requirement said vibratory response; Then accomplish the counterbalance design of said engineering goods; Otherwise, after counterweight part revised, carry out above-mentioned analysis again.Wherein, said vibratory response being analyzed specifically is to realize through the vibratory response of the said engineering goods that add counterweight and the acquired vibratory response that does not add the engineering goods of counterweight are compared.
In the embodiment of the invention,, can carry out analyses and prediction to the counterweight part that is designed to the influence of engineering goods vibration characteristics through the method for computer simulation analysis earlier, counterbalance design is assessed and instructed in the design phase of counterweight.Each counterbalance design all needs mockup to test effect in the designing technique owing to can avoid having now, so the embodiment of the invention can shorten the design cycle of counterweight part, the reduction design cost greatly.
Referring to figs. 2 to Fig. 6, be example with two PCB numerically controlled drill crossbeam counterweight below, the embodiment two of method for designing counterweight by simulation analysis of computer of the present invention is described.The present embodiment method mainly comprises CAD and CAE two parts.Wherein CAD partly accomplishes the three-dimensional modeling of crossbeam, main shaft portion and the counterweight of two PCB rig; CAE part mainly be correctly add connection between part, set up structural frequency response analysis finite element model, analytical parameters is set, accomplish the Frequency Response Analysis of structure.Relatively add the response results of crossbeam and main shaft before and after the counterweight, draw the influence of counterweight the vibration characteristics of crossbeam and main shaft, if to dynamic property to improve effect obvious, just adopt this counterbalance design scheme, carry out Frequency Response Analysis again otherwise will revise counterweight.Its practical implementation method is following:
C1, set up the three-dimensional model of two PCB numerically controlled drill header portion, z shaft portion, counterweight part parts with three-dimensional CAD software; Principle based on structural symmetry; The counterweight of setting up is similar, identical in quality with z shaft portion geometric configuration, center of gravity is identical, and its symmetry is distributed in crossbeam at the back.
C2, assemble out the three-dimensional assembling model of two PCB numerically controlled drill crossbeam and main shaft portion when adding counterweight and not adding counterweight respectively, for structural frequency response analysis is ready to geometric model.
C3, the three-dimensional assembling model that adds counterweight and do not add counterweight is carried out the structural frequency response specificity analysis respectively.Specifically comprise C3a to C3j:
C3a, three-dimensional assembling model is imported in the finite element analysis software, as the geometric model of structural frequency response analysis.
C3b, division unit grid.
C3c, create linkage unit according to the topological structure of said engineering goods and counterweight part thereof.
In the present embodiment mainly be between definition beam base and crossbeam, between crossbeam and main shaft, crossbeam is connected with three-dimensional stiffness between counterweight.Fig. 4 illustrates the topology diagram of present embodiment middle cross beam, Z shaft portion main parts size, and wherein H1 representes fixed joint, and H2 representes moving sets, and H3 representes screw pair, and H4 representes revolute, and H5 representes that three-dimensional stiffness connects.
C3d, add displacement boundary conditions at the surface of contact of beam base and lathe bed.
The load working condition of C3e, definition frequency dependence is as the operating mode of frequency response analysis.
The field of C3f, definition frequency dependence.
The load of C3g, definition frequency dependence.
In the present embodiment about on the two z axle base plates dress z to the motor place respectively during the boring of interpolation equipment z to motor to the z shaft portion excitation load that makes progress, be about 2 times of z axle motion parts gravity.
C3h, definition material properties and cell attribute.
C3i, analytical parameters is set, between 40Hz～1000Hz, carries out the structure frequency response analysis.
C3j, read analysis result, carry out aftertreatment.Export the test point 1 (crossbeam upper end mid point) of reflection equipment dynamic property and the displacement frequency response curve of test point 2 (the electric alignment of shafts is in the projection of z axle base plate front surface) respectively.
C4, relatively add counterweight and not adding under two kinds of situation of counterweight, the displacement frequency response of test point 1 and test point 2.
Comparative result by Fig. 5 and Fig. 6 can know, it is big and tangible peak value is arranged to add before the counterweight displacement frequency response, explains that at z structure has produced resonance under the excitation of motor; Add after the counterweight displacement frequency response and reduce greatly and do not have peak value, explain that z does not evoke the resonance of structure to the excitation of motor, the structure dynamic property that adds after the counterweight is largely increased.Also explanation simultaneously, though the model frequency of structural system decreases after the interpolation counterweight, the damping of structure increases more, the vibration resistance of structural system strengthens greatly, so the also significantly raising of structural system stability, can adopt this counterweight scheme.
More than the method for designing counterweight by simulation analysis of computer that the embodiment of the invention provided has been carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (3)
1. a method for designing counterweight by simulation analysis of computer is characterized in that, comprising:
Set up the three-dimensional model of engineering goods and each part of counterweight part thereof through cad tools;
Said engineering goods and counterweight part thereof are carried out virtual assembling, obtain the three-dimensional assembling model that said engineering goods add counterweight;
Set up the structural vibration analysis model of said three-dimensional assembling model;
Analytical parameters is set, carries out structural frequency response analysis;
Carry out aftertreatment to carrying out the result that said analysis obtained, the vibratory response when obtaining said engineering goods and adding counterweight;
Said structural vibration analysis model specifically is the finite element analysis model of structural vibration, and it comprises:
Said three-dimensional assembling model is imported finite element analysis software, as the geometric model of structural vibration analysis;
The division unit grid;
Topological structure according to said engineering goods and counterweight part thereof is created the linkage unit between parts;
The load working condition of definition boundary condition, frequency dependence, the field of frequency dependence and the load of frequency dependence;
Definition material properties and cell attribute.
2. method according to claim 1 is characterized in that, also comprises after the vibratory response when obtaining said engineering goods and adding counterweight:
Said vibratory response is analyzed,, then accomplished the counterbalance design of said engineering goods if this vibratory response meets predetermined designing requirement, otherwise, after counterweight part revised, carry out above-mentioned analysis again.
3. method as claimed in claim 2 is characterized in that, it specifically is to realize through the vibratory response of the said engineering goods that add counterweight and the acquired vibratory response that does not add the engineering goods of counterweight are compared that said vibratory response is analyzed.
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| CN105893681A (en) * | 2016-04-05 | 2016-08-24 | 广西大学 | Profile extrusion die design method |
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| CN103646142A (en) * | 2013-12-14 | 2014-03-19 | 西安工业大学 | Method for creating virtual prototype product of CMM (coordinate measuring machine) |
| CN105205250A (en) * | 2015-09-18 | 2015-12-30 | 中国飞机强度研究所 | Modeling method and modeling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1867919A (en) * | 2003-10-15 | 2006-11-22 | 里特技术股份公司 | Method for determining optimal damping treatments layouts and panel shape layouts |
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| CN1867919A (en) * | 2003-10-15 | 2006-11-22 | 里特技术股份公司 | Method for determining optimal damping treatments layouts and panel shape layouts |
Non-Patent Citations (1)
| Title |
|---|
| 李韶岗,孟宪颐.振动冲击夯虚拟样机的建模与仿真.《中国工程机械学报》.2005,第3卷(第2期),165-168. * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105893681A (en) * | 2016-04-05 | 2016-08-24 | 广西大学 | Profile extrusion die design method |
| CN105893681B (en) * | 2016-04-05 | 2019-04-19 | 广西大学 | Profile extrusion die design method |
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Address after: 518055 Dazu laser building, 9 new West Road, North Nanshan District high tech park, Shenzhen, Guangdong Co-patentee after: Shenzhen Dazu Digital Control Science & Technology Co., Ltd. Patentee after: HANS LASER TECHNOLOGY INDUSTRY GROUP CO., LTD. Address before: No. 5 road 518057 in Guangdong province Shenzhen city Nanshan District high tech park of Pine Hill Factory District No. 8 Co-patentee before: Shenzhen Dazu Digital Control Science & Technology Co., Ltd. Patentee before: Dazu Laser Sci. & Tech. Co., Ltd., Shenzhen |
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Effective date of registration: 20200701 Address after: 518000 workshop 5 / F, 1 / 2 / F, 14 / F, 17 / F, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 518055, the Han Dynasty laser building, No. 9 West West Road, Nanshan District hi tech park, Guangdong, Shenzhen Co-patentee before: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. |
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Address after: 518000 5 / F, 1 / 2 / F, 14 / F, 17 / F, No.3 Factory building, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Han's CNC Technology Co.,Ltd. Address before: 518000 5 / F, 1 / 2 / F, 14 / F, 17 / F, No.3 Factory building, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. |