提出变动几何约束网络概念，并将此网络应用于计算机辅助公差设计领域。
Concept of variational geometric constraints network (VGCN) is presented, and application of the network to computer aided tolerancing is studied.
其中尺寸链自动生成是进行计算机辅助公差设计的基础，它所描述的设计函数是进行公差分析和公差综合的依据。
Among them the automatic generation of dimension chain is the foundation of CAT and the described design function offers basis of tolerance analysis and tolerance synthesis.
给出了在UG平台上实现计算机辅助公差设计模块的开发方案以及利用该模块进行飞机装配部件公差设计的运行实例。
A development plan of computer-aided tolerance design module on UG platform is presented. An example for tolerance design of aircraft assembly part is given by using this module.
本文以尺寸链理论为基础，通过对二阶矩可靠性指标的应用到装配尺寸链的研究，建立计算机辅助公差优化设计的尺寸模型。
Thus a kind of computer aided optimum tolerance design model is built, by the reliability index of second moment based on the Dimension chain theory.
完成了计算机辅助二维公差设计原型系统。
The prototype system for two-dimensional tolerance design is accomplished.
给出了基于三维CAD系统的计算机辅助尺寸公差和形位公差综合设计的总体框架和原型系统。
The general framework and prototype system for synthetic design of dimensional and geometric tolerance based on three- dimensional CAD system are established.
第六章：对全文进行总结，对计算机辅助形位公差的设计应该进一步开展的工作进行探讨和展望。
In the sixth chapter, all of the work in this dissertation is summed up. The future research of computer-aided tolerancing is prospected.
第六章：对全文进行总结，对计算机辅助形位公差的设计应该进一步开展的工作进行探讨和展望。
In the sixth chapter, all of the work in this dissertation is summed up. The future research of computer-aided tolerancing is prospected.
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