中子谱仪样品台几何误差建模和灵敏度分析  

Geometrical Error Modeling and Sensitivity Analysis of a Neutron Spectrometer Sample Table

作　　者：李杨[1,2,3] 吴运新 龚海[1,2,3] 刘磊 LI Yang;WU Yunxin;GONG Hai;LIU Lei(College of Mechanical and Electrical Engineering, Central South University, Changsha,410083;State Key Laboratory of High Performance Complex Manufacturing, Changsha,410083;Nonferrous Metal Oriented Advanced Structural Materials and Manufacturing Cooperative Innovation Center, Central South University, Changsha,410083)

机构地区：[1]中南大学机电工程学院,长沙410083 [2]高性能复杂制造国家重点实验室,长沙410083 [3]中南大学有色金属先进结构材料与制造协同创新中心,长沙410083

出　　处：《中国机械工程》2017年第19期2305-2310,共6页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51327902);高性能复杂制造国家重点实验室自主研究课题资助项目(2014bcxjj06)

摘　　要：介绍了中子衍射残余应力测试谱仪样品台的结构和基于标准探针的定位测量方法;利用多体运动学和齐次变换矩阵建立了基于标准探针定位测量方法的样品台定位误差模型;最后分别对模型中涉及的42个误差分量进行了定位误差的灵敏度分析。分析结果对中子衍射残余应力测试谱仪样品台的精度设计具有参考作用。The structure of a spectrometer sample table testing residual stress by neutron diffraction and positioning measurement method were introduced herein based on standard probe.The positioning error model was established based on the standard probe positioning measurement scheme by using the multi body kinematics and homogeneous transformation matrix.Finally,position error sensitivity analysis for42error components of the model was carried out.The results of the analysis provide a reference for precision design of the spectrometer sample tables testing residual stress by neutron diffraction.

关 键 词：中子谱仪样品台 定位测量方法 多体动力学 定位误差模型 灵敏度分析 

分 类 号：TH122[机械工程—机械设计及理论]