Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2010-02-01

Journal: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY

Included Journals: EI、SCIE

Volume: 24

Issue: 2

Page Number: 521-528

ISSN: 1738-494X

Key Words: Disc cutters plane layout; Full-face tunnel boring machine; Multi objective optimization; Nondominated sorting

Abstract: Improving of the quality of the disc cutters' plane layout design of the full-face rock tunnel boring machine (TBM) is the most effective way to improve the global performance of a TBM. The plane layout design of disc cutters contains multiple complex engineering technical requirements and belongs to a multi-objective optimization problem with multiple nonlinear constraints. Based on analysis of the technical requirements of the plane layout problem; an optimizing mathematical model was built. To obtain a set of design schemes for engineers to choose from, a multi-objective genetic algorithm (MOGA) was applied to carry out the optimization of the mathematical model. A constraint-domination principle was utilized to handle the constraints, and a nondominated sorting method was adopted to obtain Pareto solutions. Simulation results showed that the proposed method was efficient and accurate in obtaining the Pareto layout solutions.