基于装配自由度分析解决欠约束问题

基于装配自由度分析解决欠约束问题

摘要：装配是机械制造过程中的一个重要环节，在装配过程中，经常会遇到欠#br# 约束问题。在复杂装配环境下，某个装配零件的欠约束会对其他零件的装配产生意想不到的#br# 结果。装配时，约束条件和零件自由度之间存在一种内在联系，通过建立基体和目标零件的#br# 自由度空间坐标系，对约束条件和自由度关系分析，得到约束条件和自由度关系的逻辑值，#br# 通过逻辑值判断剩余自由度的个数和类型，从而为快速解决欠约束问题提供了一种途径。#br# 关键词：欠约束；自由度分析；逻辑值；装配；空间坐标系

出版日期:2015-04-30 发布日期:2015-03-30

Resolution of Under-Constraint Problem Based on DOF Analysis Resolution of Under-Constraint Problem Based on DOF Analysis

Abstract: Assembly is an important part in the process of mechanical manufacturing.#br# Under-constraint often exists in the assembly process. If a part is in an under-constraint situation#br# during a large and complex assembly process, it will bring an unexpected result to the related parts#br# which take the surface of the part as constraint reference. To solve the under-constraint problem,#br# the relationship between degrees of freedom (DOF) and constraints is established by building#br# space coordinate system. Logical values can be obtained from the tables. The numbers and types#br# of DOF are determined by logical values, and it provides a quick method to solve the#br# under-constraint problem.#br# Key words: under-constraint; DOF analysis; logical value; assembly; space coordinate#br# system

Online:2015-04-30 Published:2015-03-30

摘要/Abstract

摘要： 装配是机械制造过程中的一个重要环节，在装配过程中，经常会遇到欠
约束问题。在复杂装配环境下，某个装配零件的欠约束会对其他零件的装配产生意想不到的
结果。装配时，约束条件和零件自由度之间存在一种内在联系，通过建立基体和目标零件的
自由度空间坐标系，对约束条件和自由度关系分析，得到约束条件和自由度关系的逻辑值，
通过逻辑值判断剩余自由度的个数和类型，从而为快速解决欠约束问题提供了一种途径。

关键词: 欠约束, 自由度分析, 逻辑值, 装配, 空间坐标系

Abstract: Assembly is an important part in the process of mechanical manufacturing.
Under-constraint often exists in the assembly process. If a part is in an under-constraint situation
during a large and complex assembly process, it will bring an unexpected result to the related parts
which take the surface of the part as constraint reference. To solve the under-constraint problem,
the relationship between degrees of freedom (DOF) and constraints is established by building
space coordinate system. Logical values can be obtained from the tables. The numbers and types
of DOF are determined by logical values, and it provides a quick method to solve the
under-constraint problem.

Key words: under-constraint, DOF analysis, logical value, assembly, space coordinate
system

王浪，张京英，杨薇，樊琼. 基于装配自由度分析解决欠约束问题[J]. 图学学报.

Wang Lang, Zhang Jingying, Yang Wei, Fan Qiong. Resolution of Under-Constraint Problem Based on DOF Analysis Resolution of Under-Constraint Problem Based on DOF Analysis[J]. Journal of Graphics.

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