Mathematical model of cylindrical form tolerance

被引：14

作者：

Cai M. ^{[1
]}

Yang J.-X. ^{[1
]}

Wu Z.-T. ^{[1
]}

机构：

[1] Dept. of Mech. Eng., Zhejiang Univ.

来源：

Journal of Zhejiang University-SCIENCE A | 2004年 / 5卷 / 7期

基金：

中国国家自然科学基金;

关键词：

Form tolerance; Mathematical definition; Mathematical model; Tolerance zone;

D O I：

10.1631/jzus.2004.0890

中图分类号：

学科分类号：

摘要：

Tolerance is essential for integration of computer-aided design (CAD) and computer-aided manufacturing (CAM). Unfortunately, the meaning of tolerances in the national standard is expressed in graphical and language forms and is not adaptable for expression, processing and data transferring with computers. How to interpret its semantics is becoming a focus of relevant studies. This work based on the mathematical definition of form tolerance in ANSI Y14.5.1M-1994, established the mathematical model of form tolerance for cylindrical feature. First, each tolerance in the national standard was established by vector equation. Then on the foundation of tolerance's mathematical definition theory, each tolerance zone's mathematical model was established by inequality based on degrees of feature. At last the variance area of each tolerance zone is derived. This model can interpret the semantics of form tolerance exactly and completely.

引用

页码：890 / 895

页数：5

共 8 条

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