人工心脏泵用磁轴承系统的起浮特性研究  

Research on Start-up Characteristic for Maglev Artificial Heart Pump

作　　者：孙坤[1] 陈琛[1] 

机构地区：[1]苏州大学机电工程学院,江苏苏州215021

出　　处：《机床与液压》2017年第23期101-104,141,共5页Machine Tool & Hydraulics

摘　　要：基于新一代磁悬浮人工心脏泵,探讨不同流体、不同起浮方式下磁轴承受力与运动情况,并研究了起浮时电磁执行器的响应特性。在权衡考虑电压物理限制及起浮性能的基础上,确定了各介质下较佳的控制参数改善功耗与起浮性能,并通过实验验证其合理性。Force and kinematics of the rotor on magnetic bearing （MB） in the air or water are discussed during the start-up, on the basis of the new-generation maglev artificial heart pump. The response characteristics of electromagnetic actuator was researched during the start-up. Based on considering the conflict between the physical limits of existing MB power supply and start-up performance, the better controling parameters to solve it were determined under each medium. Its rationality is verified through the experiment.

关 键 词：磁轴承 起浮特性 电流变化率 

分 类 号：TG0[金属学及工艺]