Rotor Dynamics Analysis of the Flywheel Energy Storage System

2013 ◽  
Vol 312 ◽  
pp. 3-10
Author(s):  
Guang Xi Li ◽  
Yin Shan Zhang ◽  
Lin He ◽  
Li Yang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Storage System ◽  
Energy Storage System ◽  
Rotor Dynamics ◽  
Dynamics Analysis ◽  
Dynamics Model ◽  
Flywheel Energy Storage System ◽  
Rotor Support ◽  
Flywheel Rotor

In this paper, a dynamics model of flywheel rotor - support system is build. Obtained the dynamic characteristics of the flywheel rotor by finite element method .The results indicate that the rotor system is stability and security. This provides the basis for the subsequent optimization of flywheel rotor.

Finite Element Analysis of Materials and Processing of Composite Flywheel Rotor

2014 ◽  
Vol 529 ◽  
pp. 92-96 ◽  
Author(s):  
Song Yi Guo ◽  
Chong Li ◽  
Wen Yi Li
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Storage System ◽  
Equivalent Stress ◽  
Energy Storage System ◽  
Element Analysis ◽  
Composite Flywheel ◽  
Flywheel Energy Storage System ◽  
Von Mises ◽  
Flywheel Rotor

Flywheel rotor is the very important component in the flywheel energy storage system (FESS). The key factors of rotor, such as rotor materials, geometry and fabrication process, have directly influence on the performance of FESS. At present, press-assembling the rotor with shrink-fit is used usually to increase strength of composite flywheel rotors filament wound in the radial direction. This paper is concerned that the Von Mises equivalent stress distribution of the metal hub and the radial stress distribution of the composite rim at the speed of 20000rpm by the 3D finite element method. The materials and corresponding minimum value of interference fit of the flywheel rotor are determined based on the analysis results.

Dimension Optimization and Theoretical Calculation of Flywheel Rotor for Vehicle Energy Storage System

2011 ◽  
Vol 121-126 ◽  
pp. 3234-3237 ◽  
Author(s):  
Xu Zhang ◽  
Wei Wei Cui ◽  
Li Wei Li ◽  
Ji Jun Cui ◽  
Yang Cao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Theoretical Calculation ◽  
Radial Displacement ◽  
Storage System ◽  
Energy Storage System ◽  
High Energy ◽  
System Structure ◽  
Flywheel Energy Storage System ◽  
Energy Storage Efficiency ◽  
Flywheel Rotor

A novel kind of flywheel energy storage system structure for vehicle is put forward and studied. Flywheel rotor dimension optimization is achieved adopting genetic algorithm on MATLAB program, optimized dimension is helpful for the realization of high energy storage efficiency. Based on certain uniform ring simplification of flywheel rotor shape and applying elastic mechanics solution, theoretical calculation of radial displacement and stress is accomplished. Solved radial displacement, radial stress and hoop stress can be applied in practice for further precise design in the view of mechanical strength.

Nonlinear modeling and simulation of flywheel energy storage rotor system with looseness and rub-impact coupling hitch

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zhu Youfeng ◽  
Liu Xinhua ◽  
Wang Qiang ◽  
Wang Zibo ◽  
Zang Hongyu
Keyword(s):  
Energy Storage ◽  
Differential Equations ◽  
Nonlinear Modeling ◽  
Storage System ◽  
Energy Storage System ◽  
Rotor System ◽  
Flywheel Energy Storage ◽  
Flywheel Energy Storage System ◽  
New Energy ◽  
Single Disk

Abstract Flywheel energy storage system as a new energy source is widely studied. This paper establishes a dynamic model of a single disk looseness and rub-impact coupling hitch flywheel energy storage rotor system firstly. Then dynamic differential equations of the system under the condition of nonlinear oil film force of the sliding bearing are given. Runge–Kutta method is used to solve the simplified dimensionless differential equations. The effect of variable parameters such as disk eccentricity, stator stiffness and bearing support mass on the system are analyzed. With the increase of eccentricity, the range of period-three motion is significantly reduced and the range of chaotic motion begins to appear in the bifurcation diagram. Meanwhile, stiffness of the stator and mass of the bearing support have a significant influence on the flywheel energy storage rotor system.

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