Optimization design of a high-speed flywheel for energy storage with a mandrel hub assembly

doi:10.19799/j.cnki.2095-4239.2019.0266

Abstract

Abstract:

This study discusses the stress and deformation characteristics of a mandrel hub with a composite rim assembly to solve the structural design problems of a metal mandrel hub with a composite rim flywheel rotor in 25 MJ energy storage capacity. Using finite element analysis software, the stress and the deformation of the mandrel hub structure are solved, and the self-adaptive characteristics of the flange connection are analyzed. The shape, pin hole position, and mandrel structure are optimized. Moreover, a new structure of the elliptical pin hole is proposed. The finite element analysis results show that the overall maximum stress of the flywheel mandrel wheel hub structure is reduced from 734.23 to 487.28 MPa at a rated speed of 24,000 r/min.

Key words: flywheel energy storage, mandrel-hub, pin structure, composite flywheel rim

CLC Number:

TH 133

Junshui WANG, Xingjian DAI, Yang XU, Zhenhong PI. Optimization design of a high-speed flywheel for energy storage with a mandrel hub assembly[J]. Energy Storage Science and Technology, 2020, 9(6): 1806-1811.

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References 11

1	汪勇, 戴兴建, 李振智. 60 MJ飞轮储能系统转子芯轴结构设计[J]. 储能科学与技术, 2016, 5(4): 503-508.
	WANG Yong, DAI Xingjian, LI Zhenzhi. Mandrel structure design of 60 MJ storage capacity flywheel energy storage system[J]. Energy Storage Science and Technology, 2016, 5(4): 503-508.
2	戴兴建, 李奕良, 于涵. 高储能密度飞轮结构设计方法[J]. 清华大学学报(自然科学版), 2008(3): 379-382.
	DAI Xingjian, LI Yiliang, YU Han. Design of high specific energy density flywheel[J]. Journal of Tsinghua University (Science and Technology), 2008, 48(3): 379-382.
3	WEISSBACH R S,KARADY G G,FARMER R G. A combined uninterruptible power supply and dynamic voltage compensator using a flywheel energy storage system[J]. Power Delivery, IEEE Transactions on, 2001, 16(2): 265-270.
4	戴兴建, 魏鲲鹏, 张小章, 等. 飞轮储能技术研究五十年评述[J]. 储能科学与技术, 2018, 7(5): 765-782.
	DAI Xingjian, WEI Kunpeng, ZHANG Xiaozhang, et al. Fifty-year review of flywheel energy storage technology[J]. Energy Storage Science and Technology, 2018, 7(5): 765-782.
5	戴兴建, 邓占峰, 刘刚, 等. 大容量先进飞轮储能电源技术发展状况[J]. 电工技术学报, 2011, 26(7): 133-140.
	DAI Xingjian, DENG Zhanfeng, LIU Gang, et al. Development status of large-capacity advanced flywheel energy storage power supply technology[J]. Journal of Electrotechnics, 2011, 26(7): 133-140
6	汪勇, 戴兴建, 孙清德. 基于有限元的金属飞轮结构设计优化[J].储能科学与技术, 2015, 4(3): 267-272.
	WANG Yong, DAI Xingjian, SUN Deqing. Structural design and optimization OD metallic flywheel based on FEM[J]. Energy Storage Science and Technology, 2015, 4(3): 267-272.
7	李文超, 沈祖培. 复合材料飞轮结构与储能密度[J]. 太阳能学报, 2001(1): 96-101.
	LI Wenchao, SHEN Zupei. Composite flywheel structure and energy storage density[J]. Journal of Solar Energy, 2001(1): 96-101.
8	刘洪才, 刘宪伟, 孙长青. ANSYS Workbench数值模拟[M]. 北京: 机械工业出版社, 2013.
	LIU Hongcai, LIU Xianwei, SUN Changqing. ANSYS workbench numerical simulation[M]. Beijing: Mechanical Industry Press, 2013.
9	黄秋露. 飞轮转子主体结构应力分析与优化[D]. 杭州:浙江大学, 2012.
	HUANG Qiulu. The stress analysis and optimization on the main part of the composite storage flywheel rotor[D]. Hangzhou: Zhejiang University, 2012.
10	李成, 朱红红, 铁瑛, 等. 销钉连接接触面的应力有限元计算与分析[J]. 郑州大学学报(工学版), 2012, 33(1): 84-87+92.
	LI Cheng, ZHU Honghong, Ying TIE, et al. Finite element calculation and analysis of stress on pin connection surface[J]. Journal of Zhengzhou University (Engineering Edition), 2012, 33(1): 84-87+92.
11	陆万明, 罗学富. 弹性理论基础[M]. 北京: 清华大学出版社, 2001.
	LU Wanming, LUO Xuefu. Theoretical basis of elasticity[M]. Beijing: Tsinghua University Press, 2001.

材料属性	合金钢35CrMoA	铝合金7050
密度/kg·m^-3	7800	2830
弹性模量E/MPa	2.1×10⁵	7.0×10⁴
泊松比P	0.3	0.33
屈服强度/MPa	875	505
拉伸强度/MPa	985	570

结构	法兰连接				过盈装配
材料	合金钢	铝合金	合金钢	铝合金	铝合金	复合材料
结构	芯轴2	轮毂2	芯轴1	轮毂1	轮毂1	轮缘
位置	内沿	外沿	内沿	外沿	外沿	内沿
径向位移/mm	0.055	0.065	0.151	0.167	0.996	1.288

外沿半径/mm	130	128	126	124	122	120
最大应力/MPa	620.24	591.82	582.10	536.33	504.24	487.28
变化幅度	0	-4.58%	-6.15%	-13.53%	-18.70%	-21.44%

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