科创中国

原文链接：万方

• 摘要：

  Common compliant joints generally have limited range of motion,reduced fatigue life and high stress concentration.To overcome these shortcomings,periodically corrugated cantilever beam is applied to design compliant joints.Basic corrugated beam unit is modeled by using pseudo-rigid-body method.The trajectory and deformation behavior of periodically corrugated cantilever beam are estimated by the transformation of coordinate and superposition of the deformation of corrugated beam units.Finite element analysis(FEA)is carried out on corrugated cantilever beam to estimate the accuracy of the pseudo-rigid-body model.Results show that the kinetostatic behaviors obtained by this method,which has a relative error less than 6%,has good applicability and corrugated cantilever beam has the characteristics of a large range of motion and high mechanical strength.The corrugated cantilever beam is then applied to design a flexible rotational joint to obtain a larger angle output.The paper proposes a pseudo-rigid-body model for corrugated cantilever beam and designed a flexible rotational joint with large angle output.

• 关键词：

  corrugated beam pseudo rigid body method compliant mechanisms

• 作者单位：

  Guangdong Province Key Laboratory of Precision Equipment and Manufacturing Technology,South China University of Technology, Guangzhou 510641, China ;State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China%Guangdong Province Key Laboratory of Precision Equipment and Manufacturing Technology,South China University of Technology, Guangzhou 510641, China

• 基金项目：

  National Natural Science Foundation of China(Grant .51205134,91223201)%Doctoral Fund of Ministry of Education of China(Grant20120172120001)%Research Project of State Key Laboratory of Mechanical System and Vibration of China(Grant MSV201405)%Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme(GDUPS,2010)%Fundamental Research Funds for the Central Universities(Grant2013ZM012)

• 来源期刊：

  中国机械工程学报

• 年，卷(期)：

  201427001