Reliability Robust synthesis of planar path mechanisms
To analyze the global kinematic reliability of path mechanisms at a instance time,a new kinematic analysis model is proposed.For this model,the error limit is defined as a circle (planar mechanisms) or a sphere (spatial mechanisms).A hybrid optimization algorithm which combines the genetic algorithm (GA) with the sequential quadratic programming (SQP) is proposed to solve the Most Probable Point (MPP) of the state limit function.Based on this reliability analysis model,the formulae of the reliability sensitivity for the distribution parameters of random variables are derived.The robust design model of mechanism is proposed by added the kinematic reliability sensitivity into the probabilistic synthesis model.At last,a numerical example for planar four-bar path mechanism synthesis is given to verify the validity of the presented method.
Path mechanisms Kinematic reliability Robust design
Cheng CHENG Junfu ZHANG
School of Mechanical Engineering,Xihua University,Chengdu,610039,China
国际会议
天津
英文
1-5
2014-07-06（万方平台首次上网日期，不代表论文的发表时间）