机械科学与技术2018，Vol.37Issue(2)：280-286,7.DOI:10.13433/j.cnki.1003-8728.2018.0219
尺寸公差的区间描述及不确定性优化
An Interval Description and Uncertainty Optimization Method for Dimension Tolerance
摘要
Abstract
An interval optimization method is suggested based on the dimension tolerancewhich are described by using the interval analysis.In this method,the basic dimensions and their tolerances are both taken as the design variables.And the maximum of the weight factor that indicated the level of manufacturability is selected as the design object,which is constrained by the original strictest limits and the dominated demand of policymakers.Furthermore,the model is converted into a deterministic optimization problem because of the uncertainty of the design parameters in object and constrains have been considered and handled by interval center and right boundary.The method has settled a type of practical engineering problems such as how to maximize the allowance set under given nominal design and the most severe constrains.At last,the method is applied to a numerical calculation example and a vehicle crashworthiness design.The results of these applications demonstrate the efficiency and the engineering practicability of the presented approach.关键词
尺寸公差/区间分析/不确定性优化Key words
dimension tolerance/Interval analysis/uncertainty optimization分类
矿业与冶金引用本文复制引用
廖代辉,卿宏军,姜潮,谢慧超,张智罡..尺寸公差的区间描述及不确定性优化[J].机械科学与技术,2018,37(2):280-286,7.基金项目
国家自然科学优秀青年基金项目(51222502)、教育部新世纪优秀人才支持项目(NCET-11-0124)、全国优博专项资金项目(201235)及汽车车身先进设计制造国家重点实验室开放基金项目(31515010)资助 （51222502）
