典型文献
A comparison of sensitivity indices for tolerance design of a transmission mechanism
文献摘要：
Sensitivity analysis is used to quantify the contribution of the uncertainty of input variables to the uncertainty of systematic output responses. For tolerance design in manufacturing and assembly, sensitivity analysis is applied to help designers allocate tolerances optimally. However, different sensitivity indices derived from different sensitivity analysis methods will always lead to conflicting results. It is necessary to find a sensitivity index suitable for tolerance allocation to transmission mechanisms so that the sensitivity results can truly reflect the effects of tolerances on kinematic and dynamic performances. In this paper, a variety of sensitivity indices are investigated and compared based on hybrid simulation. Firstly, the hybrid simulation model of the crank-slider mechanism is established. Secondly, samples of the kinematic and dynamic responses of the mechanism with joint clearances and link length errors are obtained, and the surrogate model established using polynomial chaos expansion (PCE). Then, different sensitivity indices are calculated based on the PCE model and are further used to evaluate the effect of joint clearances and link length errors on the output response. Combined with the tolerance-cost function, the corresponding tolerance allocation schemes are obtained based on different sensitivity analysis results. Finally, the kinematic and dynamic responses of the mechanism adopting different tolerance allocation schemes are simulated, and the sensitivity index corresponding to the optimal response is determined as the most appropriate index.
文献关键词：
中图分类号：
作者姓名：
Zhen-yu LIU;Han-chao XU;Guo-dong SA;Yu-feng LYU;Jian-rong TAN
作者机构：
State Key Laboratory of CAD&CG,Zhejiang University,Hangzhou 310027,China;School of Mechanical Engineering,Zhejiang University,Hangzhou 310027,China;Polytechnic Institute,Zhejiang University,Hangzhou 310027,China;Ningbo Research Institute,Zhejiang University,Ningbo 315100,China
文献出处：
引用格式：
[1]Zhen-yu LIU;Han-chao XU;Guo-dong SA;Yu-feng LYU;Jian-rong TAN-.A comparison of sensitivity indices for tolerance design of a transmission mechanism)[J].浙江大学学报（英文版）（A辑：应用物理和工程）,2022(07):527-542
A类：
slider,clearances
B类：
comparison,sensitivity,indices,transmission,Sensitivity,analysis,used,quantify,contribution,uncertainty,input,variables,systematic,output,responses,For,manufacturing,assembly,applied,help,designers,allocate,tolerances,optimally,However,different,derived,from,methods,will,always,lead,conflicting,results,It,necessary,find,suitable,allocation,mechanisms,that,can,truly,reflect,effects,kinematic,dynamic,performances,In,this,paper,variety,investigated,compared,hybrid,simulation,Firstly,model,crank,established,Secondly,samples,joint,link,length,errors,obtained,surrogate,using,polynomial,chaos,expansion,PCE,Then,calculated,further,evaluate,Combined,cost,function,corresponding,schemes,Finally,adopting,simulated,determined,most,appropriate
AB值：
0.45718
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