Modeling and experimental research on zero-bias thermal stability of the torque motor for aviation electro-hydraulic servo valves

Leilei Niu, Shenghong Ge, Zhichuang Chen, Haijun Zhu, Yuchuan Zhu, College of Mechanical , Electrical Engineering, Nanjing University of Aeronautics and Astronautics, AVIC Nanjing Servo Control System Co, AECC Aero Engine Control System Institute

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

Published online on May 23, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Ahead of Print.
A permanent magnet torque motor’s (PMTM) zero is very easily shifted under the dual thermal changes of structure and material in a high-temperature service environment. The aero-engine electro-hydraulic servo valve’s service performance is greatly ...