Analysis on Dynamic Performance for Active Magnetic Bearing—Rotor System   总被引：1，自引：0，他引：1  

严慧燕  汪希平  朱礼进  张直明  万金贵 《上海大学学报(英文版)》2001,5(3):234-237

In the application of active magnetic bearings(AMB),one of the key problems to be solved is the safety and stabiltiy in the sense of rotor dynamics,The project related to the present paper deals with the method for analyzing bearing rotor systems with high rotation speed and specially supported by active magnetic bearings,and studies its rotor dynamics performance,including calculation of the natural frequencies with their distribution characteristics,and the critical speeds of the system.one of the targets of this project is to formulate a theory and method valid for the analysis of the dynamic performance of the active magntic bearing-rotor systemby combining the traditional theory and method of rotor dynamics with the analytical theory and design method based on modern control theory of the AMB system.  相似文献   

分布偏离情况下的工序能力指数的精确计算     

沈雪瑾  朱礼进  陈晓阳 《上海大学学报(英文版)》2001,4(Z1)

Two simple, easy and correct process capability indices are presented in this paper, which is based on the investigation of the actual management situation of manufacture process in the medium or small enterprise of our country, and the applicability analysis for the evaluating methods of process capability. The coincidental degree of distribution center between the product quality and the spec tolerance is considered in the method, and the parameter of actual standard deviation is used. So the indices have higher accuracy and reflect the essential aspect of the problem.  相似文献