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Multiobjective structure topology optimization of wind turbine brake pads considering thermal-structural coupling and brake vibration

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journal contribution
posted on 2018-08-09, 00:00 authored by Y Wang, S Zhang, J Yin, Y Liu, Z Sha, F Ma, Bernard RolfeBernard Rolfe
Brake pads of disc brake play an important role in the stable braking process of a large-megawatt wind turbine. There is always
vibration, screaming, and severe nonuniform wear under the effect of both retardation pressure and friction. To solve these issues,
this article aims to find a new structure of the brake pads to improve brake performance. A multiobjective structure topology
optimization method considering thermal-structural coupling and brake vibration is carried out in this article. Based on topology
optimization method of Solid Isotropic Microstructures with Penalization (SIMP), the compromise planning theory is applied
to meet the stiffness requirement and vibration performance of brake pads. Structure of brake pads is optimized, and both the
stiffness and vibration performance of brake pads are also improved.Thedisadvantages of single-objective optimization are avoided.
Thermal-structural coupling analysis is tested with the actual working conditions. The results show that the new structure meets
the stiffness requirement and improves the vibration performance well for the large-megawatt wind turbine. The effectiveness of
the proposed method has been proved by the whole optimization process.

History

Journal

Mathematical problems in engineering

Volume

2018

Article number

7625273

Pagination

1 - 10

Publisher

Hindawi Publishing Corporation

Location

Cairo, Egypt

ISSN

1024-123X

eISSN

1563-5147

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2018, S. Zhang et al.