典型文献
Modeling the optimal compensation capacitance of a giant magnetostrictive ultrasonic transducer with a loosely-coupled contactless power transfer system
文献摘要:
The giant magnetostrictive rotary ultrasonic processing system (GMUPS) with a loosely-coupled contactless power transfer (LCCPT) has emerged as a high-performance technique for the processing of hard and brittle materials, owing to its high power density. A capacitive compensation is required to achieve the highest energy efficiency of GMUPS to provide sufficient vibration amplitude when it works in the resonance state. In this study, an accurate model of the optimal compensation capacitance is derived from a new electromechanical equivalent circuit model of the GMUPS with LCCPT, which consists of an equivalent mechanical circuit and an electrical circuit. The phase lag angle between the mechanical and electrical circuits is established, taking into account the non-negligible loss in energy conversion of giant magnetostrictive material at ultrasonic frequency. The change of system impedance characteristics and the effectiveness of the system compensation method under load are analyzed. Both idle vibration experiments and machining tests are conducted to verify the developed model. The results show that the GMUPS with optimal compensation capacitance can achieve the maximum idle vibration amplitude and smallest cutting force. In addition, the effects of magnetic conductive material and driving voltages on the phase lag angle are also evaluated.
文献关键词:
中图分类号:
作者姓名:
Tian LAN;Ping-fa FENG;Jian-jian WANG;Jian-fu ZHANG;Hui-lin ZHOU
作者机构:
State Key Laboratory of Tribology,Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China;China Ordnance Industry Navigation and Control Technology Research Institute,Beijing 100089,China
文献出处:
引用格式:
[1]Tian LAN;Ping-fa FENG;Jian-jian WANG;Jian-fu ZHANG;Hui-lin ZHOU-.Modeling the optimal compensation capacitance of a giant magnetostrictive ultrasonic transducer with a loosely-coupled contactless power transfer system)[J].浙江大学学报(英文版)(A辑:应用物理和工程),2022(10):757-770
A类:
GMUPS,LCCPT
B类:
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AB值:
0.505083
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