Investigation of the Effects of the Magnetic Circuit Design Parameters on the Electromechanical Valve Actuators

Abstract

The paper describes the suitable type of magnetic circuits used in the electromechanical valve actuators (EVAs). Two different types of EVA models with the disc type of magnetic circuits were designed and the effects of various design parameters such as spring constant, moving mass, supply voltage, holding force on the system were investigated. The static and dynamic equations of the system were derived and their numerical solutions were obtained with MATLAB/Simulink program. The detailed theoretical analysis and experimental tests were carried out on the manufactured different prototypes of the EVAs. Simulation and experimental results showed a good agreement with each other.

Keywords

• Electromechanical valve actuator (EVA), static and dynamic characteristics, magnetic circuit design parameters of magnetic circuit.