電磁式振動控制系統之設計開發與特性研究

• Main Authors: Kang-Ning, Lin, 林康寧
• Other Authors: 黃光裕
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/04108004835507443079

碩士 === 國立臺灣大學 === 機械工程學研究所 === 89 === The aim of this research is to enhance the precision and versatility of the high speed rotor dynamic balancing system, by implementing an electromagnetic vibration control device. The general forms of rotor imbalance is first discussed as the basis of the derivation of mathematical model, combined with the quantitative simulation of vibration behavior, the specifications of the actuator for vibration control is defined. The development of the electromagnetic actuator is carried out by utilizing systematic design approach and finite element analyzing tools. Its performance is approved by experiment. Besides magnetic related testing, the heat transfer problem is also analyzed, and an air-cooled heat sink is installed for high gain experiments. In order to increase bandwidth and reduce the complexity of control, a linear voltage controlled current drive is realized by combining a current feedback circuit and push-pull Darlington amplifier, which gives a bandwidth two orders higher than a direct voltage drive. For testing the vibration control system, experimental setup is developed, which can simulate different rotating imbalance situations by applying a DC motor with eccentric drive. The mathematical model of the system is constructed on the basis of the parametric model and closed-loop frequency response characteristics, corresponding PID control algorithms and Variable Structure control algorithms are then developed, and implemented on a TMS320 C26 DSP, the performance of vibration control well met the requirements.