基于夹具主动定位补偿的飞机柔性件装配偏差优化方法

doi:10.7527/S1000-6893.2016.420862

Abstract

Abstract:

Compliant parts are widely used in such products as aircrafts and automobiles. It is quite challenging to analyze and control the compliant assembly quality because the assembly is subject to the coupled effect of multiple error sources in part manufacturing, tooling and joining. A new methodology for assembly variation optimization is proposed based on the concept of active fixture locating compensation. First, an assembly variation model is developed by force-deformation analysis in compliant assembly considering fixture normal locating errors. Based on the assembly variation model, an optimization model is further developed to calculate the optimal fixture normal compensation, which takes the locating points of fixture as variables. Case studies on sheet metal assembly and fuselage panel assembly are conducted. Comparative studies are conducted on the two cases, i.e., sheet metal assembly and fuselage panel assembly, in which the assembly variations with and without the proposed active fixture locating compensation are achieved and compared by experiment and Abaqus finite element analysis, respectively. The results show the proposed method can significantly decrease the predictive assembly variations.

Key words: compliant assembly, fixture locating, active compensation, assembly variation, optimization

CLC Number:

V262.4
TH39

ZHANG Wei, WANG Zhiguo, TAN Changbai, LIU Xia. Assembly variation optimization method of aircraft compliant parts based on active locating compensation of fixture[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(6): 420862-420862.

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Assembly variation optimization method of aircraft compliant parts based on active locating compensation of fixture

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