储能科学与技术 ›› 2023, Vol. 12 ›› Issue (3): 669-675.doi: 10.19799/j.cnki.2095-4239.2022.0609

• 储能材料与器件 • 上一篇    下一篇

大容量复合材料飞轮转子仿真与应力分析

王泽峥1(), 曲文浩2, 王亚军2, 秦润2, 柳亦兵1()   

  1. 1.华北电力大学先进飞轮储能技术研究中心,北京 102206
    2.深能南京能源控股有限公司,江苏 南京 210000
  • 收稿日期:2022-10-20 修回日期:2022-10-26 出版日期:2023-03-05 发布日期:2023-04-14
  • 通讯作者: 柳亦兵 E-mail:wangzezheng1998@163.com;lyb@ncepu.edu.cn
  • 作者简介:王泽峥(1998—),男,硕士研究生,研究方向为复合材料飞轮转子强度,E-mail:wangzezheng1998@163.com

Simulation and stress analysis of large capacity composite flywheel rotor

Zezheng WANG1(), Wenhao QU2, Yajun WANG2, Run QIN2, Yibing LIU1()   

  1. 1.Advanced Flywheel Energy Storage Technology Research Center, North China Electric Power University, Beijing 102206, China
    2.Shenzhen Energy Nanjing Holding Co. , Ltd, Nanjing 210000, Jiangsu, China
  • Received:2022-10-20 Revised:2022-10-26 Online:2023-03-05 Published:2023-04-14
  • Contact: Yibing LIU E-mail:wangzezheng1998@163.com;lyb@ncepu.edu.cn

摘要:

大容量功率型飞轮储能系统是电力系统优质调频资源,采用高强度、低密度的复合材料制造飞轮转子是提升飞轮储能量的主要方法。本工作以大尺寸的复合材料飞轮转子为对象,在弹性理论基础上,推导出各向异性材料转子轮缘在高速旋转下的应力分布公式,并基于应力叠加原理得到了复合材料轮缘与金属轮毂过盈配合下的应力分析公式,给出了解析解;然后建立了复合材料轮缘与金属轮毂过盈配合的有限元分析模型,对转子应力分布进行仿真分析,仿真结果与解析结果基本一致,验证了模型的合理性。最后针对过盈量对复合材料转子轮缘与金属轮毂接触面应力的影响,以及飞轮转子在给定转速下的变形对过盈量及接触面应力的影响进行了分析。

关键词: 复合材料, 飞轮转子, 解析模型, 有限元分析, 应力分布

Abstract:

Large capacity power flywheel energy storage system is the high-quality frequency modulation resource of the power system. The primary technique for enhancing flywheel energy storage is the use of high-strength and low-density composite material to create flywheel rotors. In this study, the large-size composite flywheel rotor is taken as the object. Based on the elastic theory, the stress distribution formula of the anisotropic material rotor rim under high-speed rotation is obtained. The interference fit between the composite rim and the metal hub's stress analysis formula is obtained based on the principle of stress superposition, and an analytical solution is provided. Then the finite element analysis model of interference fit between the composite rim and metal hub is established, and the stress distribution of the rotor is simulated and analyzed. The simulation results are consistent with the analytical results, which confirm the rationality of the model. Finally, the impact of interference on the stress of the contact surface between the metal hub and the composite rotor rim as well as the impact of the flywheel rotor's deformation at a specific speed are investigated.

Key words: composite materials, flywheel rotor, analytical model, finite element analysis, stress distribution

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