飞轮储能系统转子动力学分析  

Rotor dynamics analysis of flywheel energy storage system

作　　者：孙红丽 吴士定 张攀峰 王国强[3,4] 孙红艳[5] 

机构地区：[1]中国联合工程公司,浙江杭州310052 [2]河南平原非标准装备股份有限公司,河南开封475004 [3]江苏大学现代农业装备与技术教育部重点实验室,江苏镇江212013 [4]江苏农牧科技职业学院农业工程系,江苏泰州225300 [5]南京师范大学泰州学院,江苏泰州225300

出　　处：《机械设计》2016年第6期72-76,共5页Journal of Machine Design

基　　金：江苏省农业三新工程资助项目(SXGC[2014]271);江苏省科技合同资助项目(BY2014124);江苏农牧科技职业学院院级资助项目(NSFYB1414;NSFYB1414);南师大泰州学院校级资助项目(Z201209)

摘　　要：文中对储能飞轮转子支撑系统的转子动力学问题进行了研究,推导出各部件的动能、势能和耗散函数,基于拉格朗日方法建立飞轮转子支撑系统的动力学数学模型,并进行求解。采用ANSYS软件对其进行临界转速及不平衡响应求解,并分析磁轴承刚度和阻尼对飞轮转子动态特性的影响。结果表明:系统临界转速均在工作转速范围之内,磁轴承刚度和阻尼的增加有利于系统的稳定,且系统在启动过程中受到不平衡激励时状态趋于稳定。The rotor dynamics of flywheel energy storage rotor support system was studied. The kinetic energ y, potential energy and the energy dissipation function of the whole system were deduced. The dynamics model of flywheel rotor supporting system was established based on lagrange′s method, and then the analytical solution of the equation was obtained. The critical speed of revolution and unbalanced response were solved by ANSYS software. The influence of magnetic bearing stiffness and damping on the dynamical characteristics of flywheel rotor was analyzed. The result showed that the system critical revolving speed was out of the range of working speed. The increase of magnetic bearing stiffness and damping was beneficial to the system stability. And the system tends to be stable in the process of running start when motivated by the imbalance.

关 键 词：飞轮储能系统 拉格朗日方法 动力学模型 有限元分析 动态特性 

分 类 号：TH133.7[机械工程—机械制造及自动化]