Optimization of the bistable mechanism properties based on radial basis function agent model

被引：0

作者：

Liu, Min ^{[1
]}

Wang, Weidong ^{[1
]}

Huo, Zimin ^{[1
]}

Dong, Siyan ^{[1
]}

Zhu, Yingmin ^{[1
]}

Zhang, Haiyan ^{[2
]}

机构：

[1] Xidian Univ, Sch Mechanoelect Engn, Xian, Peoples R China

[2] Lanzhou Inst Phys, Sci & Technol Vacuum Technol & Phys Lab, Lanzhou, Peoples R China

来源：

2021 IEEE INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (3M-NANO) | 2021年

关键词：

Optimization; Bistable structure; Mechanical; RF-MEMS SWITCH; DESIGN OPTIMIZATION; ROBUST OPTIMIZATION; ACCELEROMETER; STRESS;

D O I：

10.1109/3M-NANO49087.2021.9599752

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes an optimization method for analyzing the mechanical characteristics of a bistable structure used in inertial switch. For the purpose of obtaining the optimal design of the bistable structure, a robust optimization based on radial basis function agent model is developed, to minimizing variability of the performance due to fabrication errors and changes of material properties. The two-objective optimization function that minimizes the uncertainty of the forward threshold force and the reverse threshold force in the bistable characteristic curve is determined. As a result of the robust optimization, the maximum force used to toggle the bistable beam is reduced from 21.81 mu N to 13.81 mu N and the contact force band at 95% confidence is narrowed from +/- 1.68 mu N to +/- 0.82 mu N, verified by a finite element simulation in ANSYS.

引用

页码：35 / 38

页数：4

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