A Nonlinear Multi-Objective Optimal Design for Cutter Head of TBM

Abstract:

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This paper presents a novel model of lay out of cutter head of TBM(tunnel boring machine). Rock-broken mechanism during the operation of the cutter head is analyzed to study the layout of cutters. A model of the cutters under the action of forces during TBM’s working has therefore been developed, thus proposing a scheme to improve the rock breakability of TBM’s cutter head on which the cutters are lay out. Then, a nonlinear multi-objective mathematical model with complex constraints is developed, with an optimization program provided via an intelligent algorithm for the layout design of cutters on the cutter head of a TBM. The cutter head of an EPB6.28 TBM, an optimized design is given to set up a prototype with digitized cutter head, to which a simulation is done for the verification of equilibrium of forces. Comparing analytically the cutter wear and equilibrium of forces between a previous and a newly designed cutter heads, the results shows digitally that the new one is more practicable than the previous one.

Info:

Periodical:

Edited by:

Linli Xu, Wenya Tian and Elwin Mao

Pages:

1046-1050

DOI:

10.4028/www.scientific.net/AMM.80-81.1046

Citation:

J. Cheng et al., "A Nonlinear Multi-Objective Optimal Design for Cutter Head of TBM", Applied Mechanics and Materials, Vols. 80-81, pp. 1046-1050, 2011

Online since:

July 2011

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$35.00

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