A Drive-Transmission Integrated Linear Electromechanical Actuator

Abstract:

Based on the idea of integrated design, a drive-transmission integrated linear electromechanical actuator is developed. The actuator consists of a permanent magnet synchronous motor (PMSM), a ball-screw and shells. By using coaxial assemblage, the ball-screw is inserted into the hole of the hollow motor rotor and the nut of the ball-screw connects with the motor rotor. In order to restrict the ball-screw rotating relatively to the shell, splines machined respectively on ball-screw and the shell come into being a spline pair. A driver based on a DSP processor and IGBTs plus a position feedback resolver forms a precise servo system.

• Periodical: Applied Mechanics and Materials (Volumes 37-38)
• Pages: 5-8
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.37-38.5
• Online since: November 2010
• Authors: Wen Jia Chen, Jiang Zhang, Yan Zhong He
• Keywords: Ball Screw, Electromechanical Actuator, Permanent Magnet Synchronous Motor (PMSM)

References

[1] Z.H. Zhu and M.L. Chen: The Servo Control System of the Thrust Vector (Astronautic Press, China 1995).

[2] X.Y. Meng: The Guidance of the Missile And Theory of the Control System (Beijing Institute of Technology Press, China 2003).

[3] Z.M. Li and W.G. Liu: The Permanent Magnet Motor of Rare Earth (National Defence Industrial Press, China 1999).