Scholarlink

The compliant constant force mechanism has the characteristic of output constant force. In this paper, a compliant constant force mechanism filled with magnetorheological fluid to achieve controllable stiffness is studied. The mechanism is composed of a V-shaped beam and a bistable beam in parallel. The V-shaped beam provides positive stiffness and the bistable beam provides negative stiffness. The mechanism is filled with magnetorheological fluid, and the stiffness can be adjusted under the change of external magnetic field. In this paper, the pseudo rigid body model is used for the positive stiffness mechanism, and the ellipse integral method is used to establish the mathematical model for the negative stiffness mechanism. The magnetic dipole model is used to analyze the magnetorheological fluid, and the model is verified by finite element analysis. The results show that the proposed compliant constant force mechanism can achieve adjustable stiffness and constant force by changing the external magnetic field.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Design and Analysis of Adjustable Stiffness Compliant Constant Force Mechanism Based on Magnetic Field Response

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Shuaishuai Lu,
  • Chongchong Xu,
  • Jiashuai Guo,
  • Jun Chen,
  • Anqing Li,
  • Fuyu Luan,
  • Zhiyong Zhu

摘要

The compliant constant force mechanism has the characteristic of output constant force. In this paper, a compliant constant force mechanism filled with magnetorheological fluid to achieve controllable stiffness is studied. The mechanism is composed of a V-shaped beam and a bistable beam in parallel. The V-shaped beam provides positive stiffness and the bistable beam provides negative stiffness. The mechanism is filled with magnetorheological fluid, and the stiffness can be adjusted under the change of external magnetic field. In this paper, the pseudo rigid body model is used for the positive stiffness mechanism, and the ellipse integral method is used to establish the mathematical model for the negative stiffness mechanism. The magnetic dipole model is used to analyze the magnetorheological fluid, and the model is verified by finite element analysis. The results show that the proposed compliant constant force mechanism can achieve adjustable stiffness and constant force by changing the external magnetic field.