基于多重相关特征质量损失函数的公差优化设计  

Optimal Tolerance Design Based on the Quality Loss Function with Multi-correlated Characteristics

作　　者：彭和平[1,2] 蒋向前[1,3] 徐振高[1] 刘晓军[1] 

机构地区：[1]华中科技大学,武汉430074 [2]江汉大学,武汉430056 [3]哈德斯菲尔德大学,英国哈德斯菲尔德HD13DH

出　　处：《中国机械工程》2008年第5期590-594,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50545026)

摘　　要：在重点推导了具有多重相关特征产品的质量损失与尺寸公差的函数关系的基础上,提出了多重相关特征产品的公差优化设计方法,建立了基于制造成本-质量损失的公差优化设计的综合模型,建立该模型的目的是寻求制造成本和质量损失之间的平衡,实现旨在提高产品质量和降低成本的公差优化设计。应用实例验证了所提出方法的有效性。This paper presented a tolerance design method based on the quality loss function with multi-correlated characteristics. The discussions focused on the derivation of functional relationship between the quality loss of products with multi-correlated characteristics and dimension tolerances, and a comprehensive model for optimal tolerance design was established based on manufacturing cost -quality loss. The purpose of the model was to balance manufacturing cost and quality loss so that optimal tolerance design is achieved and quality improvement and product cost reduction is realized. An example involving optimal tolerance design for products with correlated characteristics was presented to demonstrate the effectiveness of the proposed method.

关 键 词：相关特征 公差设计 优化 制造成本 质量损失函数 

分 类 号：TH124[机械工程—机械设计及理论]