TY - JOUR
T1 - FEA-based optimization and experimental verification of a typical flexure-based constant force module
AU - Ding, Bingxiao
AU - Li, Xuan
AU - Li, Yangmin
N1 - Funding Information:
This work is supported by Huxiang High Level Talent Project of Hunan Province, China (Grant No. 2019RS1066 ), the Project State Key Laboratory of Ultra-precision Machining Technology of Hong Kong Polytechnic University, China (Project ID： P0033453 ).
Funding Information:
The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Yangmin Li reports financial support was provided by National Science Foundation of China. Bingxiao Ding reports financial support was provided by Huxiang High Level Talent Project of Hunan Province (Grant No. 2019RS1066).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - To solve the problem of insufficient constant-force stroke of the compliant constant force mechanism (CFM), a FEA-based optimization method based on structural parameters is proposed in this paper. Firstly, a flexure-based constant force module (FBCFM) combined with a Z-shaped beam and a bi-stable beam is designed. By analyzing the force-displacement relationship of the two kind beams, the architectural parameters related to the constant force characteristic of the FBCFM are derived. Then, the initial constant-force stroke with 2.2 mm and output constant force with 13.8 N of the FBCFM are obtained by experimental studies. Furthermore, to explore the parametric effects for the designed FBCFM, parametric evaluation is conducted via MATLAB. Finally, the optimal solution set of architecture parameters is obtained with FEA-based optimization method. Through experimental verification, the constant-force stroke of the optimized FBCFM is 4.5 mm with constant force 8.5 N. The optimization results show the effectiveness and feasibility of the proposed FEA-based optimization method.
AB - To solve the problem of insufficient constant-force stroke of the compliant constant force mechanism (CFM), a FEA-based optimization method based on structural parameters is proposed in this paper. Firstly, a flexure-based constant force module (FBCFM) combined with a Z-shaped beam and a bi-stable beam is designed. By analyzing the force-displacement relationship of the two kind beams, the architectural parameters related to the constant force characteristic of the FBCFM are derived. Then, the initial constant-force stroke with 2.2 mm and output constant force with 13.8 N of the FBCFM are obtained by experimental studies. Furthermore, to explore the parametric effects for the designed FBCFM, parametric evaluation is conducted via MATLAB. Finally, the optimal solution set of architecture parameters is obtained with FEA-based optimization method. Through experimental verification, the constant-force stroke of the optimized FBCFM is 4.5 mm with constant force 8.5 N. The optimization results show the effectiveness and feasibility of the proposed FEA-based optimization method.
KW - Bi-stable beam
KW - Constant force compliant mechanism
KW - FEA-based optimization
KW - Z-shaped beam
UR - http://www.scopus.com/inward/record.url?scp=85115979746&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2021.113083
DO - 10.1016/j.sna.2021.113083
M3 - Journal article
AN - SCOPUS:85115979746
SN - 0924-4247
VL - 332
JO - Sensors and Actuators A: Physical
JF - Sensors and Actuators A: Physical
M1 - 113083
ER -