Structure Topology Optimization of Brake Pad in Large- megawatt Wind Turbine Brake Considering Thermal- structural Coupling

Zhang, S F; Yin, Jian; Liu, Y; Sha, Zhihua; J, F

doi:10.1088/1757-899x/157/1/012026

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Constant speed of the windwheel is required when the wind unit is connected to the power grid [4,5]. Variable frequency uses a rectifier and inverter [6,7]. Variable frequency is permissible when using wind energy for heat and water supply, for mechanical work.…”

Section: Selection Of Methods Of Energy Transformationmentioning

confidence: 99%

Selection of design structure and method of energy transformation in wind power plant

et al. 2019

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The purpose of the work is to select the design concept of the wind power plant and the method of transformation of mechanical wind energy into electric energy depending on the wind speed in the given area. In order to solve the first task, it is proposed to approximate the distribution of wind speed with the help of the Raleigh Law, to use incomplete gamma functions and to compare the average annual power of wind plants with the vertical and horizontal spin axis. At low wind speeds dependence of wind plant mass with vertical spin axis with different types of generators is analyzed. The multiplication unit design is selected. Friction forces are determined in planetary multiplication unit having high efficiency. The effect of these forces on wind power plant efficiency is analyzed.

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Section: Selection Of Methods Of Energy Transformationmentioning

confidence: 99%

Selection of design structure and method of energy transformation in wind power plant

et al. 2019

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“…Based on Sha's result, Zhang et al considered the thermal-structural coupling, and the optimized brake pads showed that much more material is needed to be maintained to conduct the heat generated in the braking process. Therefore, Zhang found that how the thermal-structural coupling influenced on structure optimization of the large-megawatt wind turbine brake pads [22]. Han et al carried out a coupled thermomechanical analysis of the brake disc-pad in vehicle brake system, and it was found that the nonuniform contact pressure distribution on the brake pads was a major cause of uneven wear.…”

Section: Introductionmentioning

confidence: 99%

Multiobjective Structure Topology Optimization of Wind Turbine Brake Pads Considering Thermal-Structural Coupling and Brake Vibration

Zhang

Yin

Liu

et al. 2018

Mathematical Problems in Engineering

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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. The disadvantages 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.

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Structure Topology Optimization of Brake Pad in Large- megawatt Wind Turbine Brake Considering Thermal- structural Coupling

Cited by 2 publications

References 4 publications

Selection of design structure and method of energy transformation in wind power plant

Selection of design structure and method of energy transformation in wind power plant

Multiobjective Structure Topology Optimization of Wind Turbine Brake Pads Considering Thermal-Structural Coupling and Brake Vibration

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