期刊
ENGINEERING OPTIMIZATION
卷 -, 期 -, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/0305215X.2022.2139373
关键词
Topology optimization; compliant mechanism; constant force mechanism; minimum length scale; bifurcation
资金
- Guangzhou Basic and Applied Basic Research Foundation
- Guangdong Polytechnic Normal University
- Research Fund of the Guangdong Key Laboratory of Precision Equipment and Manufacturing Technique
- [99/991620450]
- [1745801]
This study proposes a topology optimization method for designing hinge-free compliant constant-output-force mechanisms. By introducing a constraint for preventing bifurcation and utilizing a minimum scale constraint method, the optimization design and fabrication of the optimized CCFM are achieved and tested. The optimized CCFM exhibits a small force variation over the constant-force stroke, showing competitiveness.
Compliant constant-force mechanisms (CCFMs) are compliant mechanisms that provide nearly constant forces over prescribed deflection ranges. This study proposes a topology optimization method for designing hinge-free compliant constant-output-force mechanisms. Bifurcation cause the objective function to oscillate, leading to convergence failure. Therefore, a constraint for preventing bifurcation in constant-output-force mechanisms is proposed. Moreover, a minimum scale constraint method that extends the design domain is utilized in the proposed optimization algorithm. The relationship between the minimum length scale and the force variation in the optimized CCFM is obtained and discussed, and an optimized CCFM is fabricated and tested. The optimized CCFM exhibits a force variation of 0.7% over a constant-force stroke of 26% of the CCFM length and is thus competitive among recently proposed CCFMs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据