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	Optimization of Circular-axis Flexure Hinge by Considering Material Selection and Geometrical Configuration Simultaneously
	Cao, Y.; Z. Wang; C. Zhou and W. Wang
	2017
发表期刊	Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
卷号	53期号:9
摘要	The circular-axis flexure hinge has been widely used in various fields. In order to solve the problem of optimizing material and geometrical configuration of flexure hinge simultaneously, the mechanical modeling method and optimization algorithm is investigated. According to the structural property of the flexure hinge, which consists of several flexural elements, the flexure hinge is simplified to indeterminate beam. The radical and tangential stiffness is derived by using virtual work principle. The whole stiffness of the flexure hinge, which is the function of material, geometrical parameters and its configuration, is obtained based on force equilibrium condition and compatible deformation. The optimization model for flexure hinge design is established. By introducing the SIMP/RAMP based model, the material parameter is expressed as the combination of artificial variables and candidate material parameters and the stiffness of flexure hinge is expressed as the combination of artificial variables and stiffness parameter corresponding to different geometrical configuration. The discrete integer programming problem can be transformed into continuous parameters optimization problem, then the gradient based method can be used to solve the optimization problem, which decreases the complexity of optimization model and improves the computational efficiency. The stiffness model of flexure hinge is verified by experiment, and the theoretical results are in good agreement with experimental results. In addition, the example of spherical mirror is given to verify the optimization model and algorithm. The obtained results show that the solving scheme guarantees the enough solution space in the beginning and finally drives the artificial variables to 0-1 values as the penal factor increasing. The surface precision of the mirror is increased by 15% after optimization design. 2017 Journal of Mechanical Engineering.
收录类别	ei
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/58839
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Cao, Y.,Z. Wang,C. Zhou and W. Wang. Optimization of Circular-axis Flexure Hinge by Considering Material Selection and Geometrical Configuration Simultaneously[J]. Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,2017,53(9).
APA	Cao, Y.,Z. Wang,&C. Zhou and W. Wang.(2017).Optimization of Circular-axis Flexure Hinge by Considering Material Selection and Geometrical Configuration Simultaneously.Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,53(9).
MLA	Cao, Y.,et al."Optimization of Circular-axis Flexure Hinge by Considering Material Selection and Geometrical Configuration Simultaneously".Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 53.9(2017).

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