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

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

Abstract

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

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

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