摘要
以城际交通的动能制动回收飞轮储能装置为工程背景,分析地铁出站加速运行时,地面振动对飞轮储能装置转子的影响。首先,利用整体法和能量法,在定子基础振动和转子不平衡力的基础上,通过拉格朗日方程建立了包含飞轮电池基础振动的八自由度刚性模型。然后,利用MATLAB软件中的ode函数,进行模型仿真和分析。结果表明,在外部激励和转子自身不平衡振动的影响下,转子会出现诸如概周期、混沌等丰富的非线性振动现象。转子在高速条件下还会出现"拍振"现象。磁悬浮转子的最大稳定转速为3980rad/s。当超过临界转速后,转子的振动幅值和共振频率会小幅度增大。
Taking the energy brake recovery flywheel energy storage device of intercity traffic as the engineering background. The influence of ground vibration on the rotor of the flywheel energy storage device was analyzed when the subway is speeding up. Considering the vibration of stator and the unbalanced force of rotor, the eight-degree-of-freedom rigid model was established by Lagrange equation using the integral method and the energy method. Then,model simulation and analysis were performed using ode function in MATLAB software. The result shows that under the influence of external excitation and unbalanced vibration of rotor, there are abundant nonlinear vibration phenomena such as period, chaos. The rotor appears“beat vibration”phenomenon at high speed. The maximum stable speed of the magnetic levitation rotor is 3800 rad/s. After exceeding the critical speed, the vibration amplitude and resonance frequency of the rotor increase slightly.
作者
朱由锋
刘新华
王良
王强
ZHU You-feng;LIU Xin-hua;WANG Liang;WANG Qiang(College of Transportation Shandong University of Science and Technology,Shandong Qingdao 266590,China;Shandong Sinogold New Energy Automotive Engineering Research Institute,Shandong Zibo 255000,China)
出处
《机械设计与制造》
北大核心
2021年第12期120-124,129,共6页
Machinery Design & Manufacture
基金
山东省重点研发计划(公益类科技攻关)—复杂环境下车载飞轮电池的振动抑制关键技术研究(2019GGX103024)。
关键词
飞轮储能
非线性分析
混沌
磁轴承
Flywheel Energy Storage
Nonlinear Analysis
Chaos
Magnetic Bearing
