二阶矩可靠性指标的计算机辅助公差优化装配尺寸链设计模型

Model of Computer Aided Optimum Tolerance Design based on the Reliability Index of Second Moment

公差优化设计是在机械产品设计和制造过程中的一项重要内容,而在计算机应用中,建模也是一个重要的步骤。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。

Optimum tolerance design is one of important steps in the process of machine design and manufacture and in the application of computer,and model-building is an important step.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.