A Disassembly CPN Model for Maintenance of Airborne Equipments with Disassembly Precedence Constraints

Affiliation of Author(s):College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics

Journal:Journal of Computer-Aided Design & Computer Graphics

Place of Publication:Beijing

Funded by:国家“八六三”高技术研究发展计划

Key Words:disassembly for maintenance; disassembly sequence planning; disassembly precedence constraint;

Abstract:The problems for disassembly sequence planning for maintenance with current disassembly Petri net models are the inaccurate description of constraint relations and complexity of model structure. A DCPN model using colored Petri net was proposed to solve the disassembly sequence planning for maintenance based on disassembly precedence constraints in the consideration of features of disassembly for maintenance of airborne equipments and to build the relationship of disassembly precedence with disassembly time. First, a method for accurate description of the relationship between devices was formulated based on the generation and characterization of disassembly precedence matrix in m dimensional disassembly. Then, a simpler net structure was obtained by modeling with colored Petri net. The automatic seeking technique for the disassembly sequences and their concurrency in disassembly operations was realized employing the reachable marking graph and the dynamic characteristics of DCPN.

Indexed by:Journal paper

Discipline:Engineering

First-Level Discipline:Aeronautical and Astronautical Science and Technology

Document Type:J

Volume:23

Issue:2

Page Number:323-330+338

ISSN No.:1003-9775

Translation or Not:no

Date of Publication:2011-02-28

Correspondence Author:Liu Yi

Date of Publication:2011-02-28