Optimal Assembly Tolerance Allocation for Tolerance Principle
In view of the problem that the influence of tolerance principle is not considered in existing optimal assembly tolerance allocation,the tolerance principle is introduced into the model of optimal assembly tolerance allocation,which provides a feasible method for optimal assembly tolerance allocation for tolerance principle.Firstly,based on jocobian-torsor model of modified toler-ance principle,the assembly function constraints of optimal assembly tolerance allocation model are constructed.Secondly,ac-cording to the actual machining accuracy range,the machining capacity constraints of optimal assembly tolerance allocation model are constructed.Then,according to the tolerance cost function,the optimization objective of optimal assembly tolerance allo-cation model is constructed.Finally,an example of machine tailstock is given to illustrate the process of optimal assembly toler-ance allocation for tolerance principle,genetic algorithm is used to solve the problem,the result of optimal assembly tolerance allo-cation is analyzed,and the effectiveness of this method is verified.
Jocobian-Torsor ModelOptimal Tolerance AllocationTolerance PrincipleTolerance Cost Function
NETL
NSTL
万方数据
