Analysis and experiment of a novel linear and rotary permanent magnet actuator

作者：Jin Ping^*; Lin Heyun; Fang Shuhua; Wang Xianbing; Guo Lijia

来源：Proceedings of the CSEE, 2011, 31(12): 65-70.

• 3D-finite element method
• Complex structure
• Control accuracy
• Engineering design
• FEM analysis
• Linear actuator
• Linear and rotary permanent magnet actuator
• Magnetic circuit model
• Operating principles
• Rotary actuator
• Rotary motor
• Rotary movement
• Rotary permanent magnet
• Structure characteristic
• Three-dimensional finite element method

A linear and rotary actuator is usually comprised by a linear actuator and a rotary motor, which causes many disadvantages such as complex structure and low control accuracy. This paper proposes a novel linear and rotary permanent magnet actuator (LRPMA), which can produce linear and rotary movements either separately or simultaneously. The LRPMA';s structure characteristics and operating principle were introduced; the circular-arc straight-line magnetic circuit model (MCM) of the LRPMA was established; and the rotary torque and linear force were deduced. Three dimensional finite element method (3-D FEM) was employed to analyze the distribution of the no-load magnetic field and to verify the flux calculated by the MCM. Finally, a prototype was manufactured for verifying the principle of the novel LRPMA. The experiment measurements were coincident well with the MCM and 3-D FEM analysis results. The accuracy of the MCM can meet the requirements of engineering design and analysis, and the feasibility of the proposed LRPMA was demonstrated. ? 2011 Chin. Soc. for Elec. Eng.

• 出版日期2011
• 单位东南大学