【作者】 杨声云； 李建华； 吴昊天； 陈震；

【Author】 Yang Shengyun~1 Li Jianhua~2 Wu Haotian~2 Chen Zhen~2 1(Dept. of Measuring & Control Engineering, Nanchang Institute of Aeronautical Technology, Nanchang 330034, China) 2(College of Mechanical & Electrical Engineering, Northwestern Polytechnical University, Xi’an 710072, China)

【机构】 南昌航空工业学院测控工程系； 西北工业大学机电学院；

【摘要】 研究了PID控制的单自由度电磁轴承—转子系统由于力—电流/位移的非线性特性所引起的非线性振动。讨论了当控制器参数改变时,系统表现出软/硬弹簧特性;分析了主共振区的跳跃谐振现象和对控制器参数改变时系统在主共振区的特性。更多还原

【Abstract】 The nonlinear vibration of a mono-degree of freedom rotor supported by the AMBs is investigated. With the altering of the PID controller’s parameters, the typical nonlinear phenomena such as softening/hardening spring characteristic, jumps of the resonance curve can be observed and analyzed. The resonance curve is also analyzed in the area of nature frequency when the controller’s parameters have been altered.更多还原