TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT)
In view of stability requirements of compliant mechanisms, based on the Heaviside three-field mapping scheme and the compliance change rate constraint measure, the topology optimization problem of the compliance minimization of hinge-free multi-input multi-output compliant mechanisms with buckling c...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.015 |
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| _version_ | 1841534415532982272 |
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| author | GAN Wei RONG JianHua ZHAO Lei HE YiFan LI ZhengWei ZHOU Quan |
| author_facet | GAN Wei RONG JianHua ZHAO Lei HE YiFan LI ZhengWei ZHOU Quan |
| author_sort | GAN Wei |
| collection | DOAJ |
| description | In view of stability requirements of compliant mechanisms, based on the Heaviside three-field mapping scheme and the compliance change rate constraint measure, the topology optimization problem of the compliance minimization of hinge-free multi-input multi-output compliant mechanisms with buckling constraints is investigated. Firstly, in order to solve the problem of pseudo-buckling modes and calculation efficiency caused by low-density elements, smooth penalty functions of the element stiffness matrix and stress matrix are constructed, and comprehensive measures to solve the corresponding problem are proposed. Furthermore, cooperating with the Pian mixed stress element formula, the aggregation function method, the Heaviside three-field mapping scheme and the compliance change rate constraint measure, the topology optimization model of hinge-free multi-input multi-output compliant mechanisms considering buckling is constructed. Then, the sensitivities of the objective function and buckling constraints are derived, and the MMA algorithm is adopted to optimize the topology optimization model. Finally, the numerical examples are given to illustrate the feasibility and effectiveness of this method. |
| format | Article |
| id | doaj-art-74bc9d320e6b4923b2186a80357406c1 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-74bc9d320e6b4923b2186a80357406c12025-01-15T02:39:54ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-011371137936351320TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT)GAN WeiRONG JianHuaZHAO LeiHE YiFanLI ZhengWeiZHOU QuanIn view of stability requirements of compliant mechanisms, based on the Heaviside three-field mapping scheme and the compliance change rate constraint measure, the topology optimization problem of the compliance minimization of hinge-free multi-input multi-output compliant mechanisms with buckling constraints is investigated. Firstly, in order to solve the problem of pseudo-buckling modes and calculation efficiency caused by low-density elements, smooth penalty functions of the element stiffness matrix and stress matrix are constructed, and comprehensive measures to solve the corresponding problem are proposed. Furthermore, cooperating with the Pian mixed stress element formula, the aggregation function method, the Heaviside three-field mapping scheme and the compliance change rate constraint measure, the topology optimization model of hinge-free multi-input multi-output compliant mechanisms considering buckling is constructed. Then, the sensitivities of the objective function and buckling constraints are derived, and the MMA algorithm is adopted to optimize the topology optimization model. Finally, the numerical examples are given to illustrate the feasibility and effectiveness of this method.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.015Compliant mechanismsCompliance change rate constraintsBuckling constraintsTopology optimizationMaterial penalty model |
| spellingShingle | GAN Wei RONG JianHua ZHAO Lei HE YiFan LI ZhengWei ZHOU Quan TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT) Jixie qiangdu Compliant mechanisms Compliance change rate constraints Buckling constraints Topology optimization Material penalty model |
| title | TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT) |
| title_full | TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT) |
| title_fullStr | TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT) |
| title_full_unstemmed | TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT) |
| title_short | TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT) |
| title_sort | topology optimization design method for hinge free multi input multi output compliant mechanisms under buckling constraints mt |
| topic | Compliant mechanisms Compliance change rate constraints Buckling constraints Topology optimization Material penalty model |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.015 |
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