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Tolerance Synthesis for Design and Manufacturing

设计和制造的公差综合

基本信息

批准号：
9200900
负责人：
Hsu-Pin (Ben) Wang
金额：
$ 4.36万
依托单位：
University of Iowa
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1992
资助国家：
美国
起止时间：
1992-09-01 至 1994-02-28
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9200900&HistoricalAwards=false
关键词：
Tolerance Synthesis Design Manufacturing

项目摘要

Tolerance synthesis is a major task of product and process design and is in a period of extensive study due both to increased demands for quality products and to increasing automation of machining and assembly. Optimum tolerance design and synthesis ensures good quality product at low cost. The primary goal of this research project is to develop an analytical methodology for concurrent optimization of design and manufacturing tolerance syntheses to enhance product manufacturability, quality and cost effectiveness. Based on a more complete understanding of the relationships between dimensional tolerance and machining cost, process capability and tolerance, mathematical models for these relationships are to be formulated. As its objective function the minimum manufacturing cost, and optimization model for concurrent tolerance syntheses will then be developed based on the above relationships. The project will extend and augment previous research on the development of solution procedures for the tolerance optimization model. In particular, simulated annealing algorithm and discrete optimization techniques will be investigated and implement. This research project will tie together disparate efforts that tend to treat design tolerance synthesis and manufacturing tolerance allocation as separate problems. The goal is to achieve more economical manufacturing through tolerance optimization.

公差综合是产品和工艺设计的一项主要任务，由于对高质量产品的需求增加以及加工和装配自动化程度的提高，公差综合正处于广泛的研究阶段。最佳的公差设计和合成确保了低成本的高质量产品。本研究项目的主要目标是开发一种分析方法，用于同时优化设计和制造公差综合，以提高产品的可制造性，质量和成本效益。在更全面地认识尺寸公差与加工成本、加工能力和公差之间关系的基础上，建立了这些关系的数学模型。以制造成本最小为目标函数，在此基础上建立并行公差综合优化模型。该项目将扩展和加强先前对公差优化模型求解程序的研究。特别是，模拟退火算法和离散优化技术将被研究和实现。这个研究项目将把不同的努力结合在一起，这些努力倾向于把设计公差综合和制造公差分配作为独立的问题来处理。目标是通过公差优化实现更经济的制造。