The PemRam - an electromagnetic linear actuator

1996 ◽  
Author(s):  
P.R.M. Denne
Keyword(s):  
Linear Actuator ◽  
Electromagnetic Linear Actuator

Development of High-Speed Response Electromagnetic Linear Actuator Using for Pneumatic Control Valve

2014 ◽  
Vol 532 ◽  
pp. 41-45 ◽  
Author(s):  
Myung Jin Chung
Keyword(s):  
Optimal Design ◽  
Dynamic Characteristics ◽  
High Speed ◽  
Design Method ◽  
Control Valve ◽  
Design Parameters ◽  
Linear Actuator ◽  
Analytic Model ◽  
Electromagnetic Linear Actuator ◽  
Quadratic Programming Method

Analytic model of electromagnetic linear actuator in the function of electric and geometric parameters is proposed and the effects of the design parameters on the dynamic characteristics are analyzed. To improve the dynamic characteristics, optimal design is conducted by applying sequential quadratic programming method to the analytic model. This optimal design method aims to minimize the response time and maximize force efficiency. By this procedure, electromagnetic linear actuator having high-speed characteristics is developed.

scholarly journals Static Analysis of the Tubular Electromagnetic Linear Actuator with Permanents Magnets

2018 ◽  
Vol 213 (2) ◽  
pp. 83-95 ◽  
Author(s):  
Krzysztof Just ◽  
Paweł Piskur
Keyword(s):  
Finite Element Method ◽  
Static Analysis ◽  
Preliminary Analysis ◽  
Magnetic Circuit ◽  
Electromagnetic Actuator ◽  
Linear Actuator ◽  
Static Characteristics ◽  
Soft Ferromagnetic ◽  
Ferro Magnetic ◽  
Electromagnetic Linear Actuator

Abstract In this paper a results of a static analysis of the tubular linear electromagnetic actuator is presented. The linear actuator consist of two parts: a cylindrical unmovable coils surrounded by a soft ferromagnetic case, and a runner made from sequence of permanent magnet with a soft ferro-magnetic gasket. In the first part of the paper the analytical method was performed for preliminary analysis. In the second part of the paper the more detailed analysis was depicted with using finite element method (FEM). The magnetic circuit shape and impact of selected dimensions on static characteristics is presented. Then the axial and radial electromagnetic force as a function of the runner dimensions were analysed.

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