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Journal of Zhejiang University SCIENCE A

ISSN 1673-565X(Print), 1862-1775(Online), Monthly

A statistical method to identify main contributing tolerances in assemblability studies based on convex hull techniques

Abstract: In tolerancing, it is important to obtain recommendations from tolerance simulation results for optimizing tolerance values or the tolerance scheme. For this purpose, sensitivity analysis identifies the importance of single input parameters for received simulation results. This paper presents a method to adopt global sensitivity analysis methods on convex hull based tolerancing techniques, such as deviation domains. The focus of this paper lies on assemblability studies, in which the simulation output is a clearance. A method to estimate the influence of single part tolerances on the assembly clearance is proposed and performed for a pin-hole connection.

Key words: Tolerance-Maps, Deviation domain, Assemblability, Sensitivity analysis, Statistical tolerance analysis

Chinese Summary  <32> å¯è£…é…性研究中基于凸包技术的关键公差识别统计方法

目的:从公差仿真结果中获得ä¾æ®ï¼Œä»¥æ­¤ä¼˜åŒ–公差值åŠå…¬å·®æ–¹æ¡ˆï¼Œå¹¶é€šè¿‡çµæ•åº¦åˆ†æžæ¥éªŒè¯å•ä¸ªå‚数的改å˜å¯¹æ‰€å¾—仿真结果的影å“。
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DOI:

10.1631/jzus.A1400237

CLC number:

TH161

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On-line Access:

2015-05-04

Received:

2014-07-30

Revision Accepted:

2015-03-15

Crosschecked:

2015-04-13

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