Research On Assembly Modeling And Assembly Sequence Planning Of Aeronautic Product

Assembly sequence planning(ASP), a problem of how to build effective modeling andfind optimal feasible assembly sequence fits assembly process, constrains the evolution ofmanufacturing technology. Recent years, how to process computer-aided modeling andassembly sequence planning draws attention of scholars domestic and overseas.This paper researched on assembly modeling and assembly sequence planning underthe background of aeronautic assembly process. Firstly, this paper introduced the researchmethods and results related to ASP issue domestic and overseas. And the assembly modelwas defined based on graph theory with digraph of a product structure and a dynamicinterference matrix. Then a genetic-taboo algorithm for assembly sequence planning wasdesigned, including expression of chromosome, crossover operator, mutation operator,fitness function and variable neighborhood search strategy; the optimal assembly sequenceof a classic assembly model was also figured o ut to verify the feasibility of genetic-tabooalgorithm. After, this paper used the matrix compatibility to calculate the assembly indexweight based on the study of matrix principle, and designed fuzzy evaluation algorithm forassembly sequence combing qualitative and quantitative analytical methods; the feedbackmatrix was also given to improve and perfect the knowledge base of assembly process.At last, this paper did the assembly modeling, assembly sequence planning andassembly sequence evaluation of an aircraft engine’s assembly to verify the effectiveness ofthe method proposed in this paper. The result figured out demonstrated the feasibility andpracticability of the modeling method, the genetic-taboo algorithm and the fuzzy evaluationmethod for ASP of aeronautic product.