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.

Design of a Miniature Short-Stroke Constant-Force Linear Actuator

2013 ◽  
Vol 416-417 ◽  
pp. 109-114 ◽  
Author(s):  
Romain Besuchet ◽  
Alexandre Gabella ◽  
Yves Perriard
Keyword(s):  
Genetic Algorithm ◽  
Finite Element Method ◽  
Finite Element ◽  
Thrust Force ◽  
Electromagnetic Actuator ◽  
Linear Actuator ◽  
Constant Force ◽  
Force Profile ◽  
Positioning Device ◽  
Design And Testing

This paper presents the modelling, design and testing of a short-stroke linear actuator to be embedded in a battery-powered positioning device. The particularity of this small (1 cm3) electromagnetic actuator is that it has to provide a constant force along its nominal stroke (1 mm), required by the specifications. In order to achieve this goal, an analytical and two Finite-Element-Method-based models have been developed. A genetic algorithm that takes the force profile into account is used to maximise the nominal thrust force of the actuator. The prototype shows a force profile that has less than 4% of deviation over the stroke and a nominal thrust force of 1.35 N.

Modeling and Experimental Investigation on Vehicle Active Suspension Electromagnetic Actuator

2013 ◽  
Vol 278-280 ◽  
pp. 303-306
Author(s):  
Chao Qun Huang ◽  
Fei Lai
Keyword(s):  
Finite Element ◽  
Active Suspension ◽  
Element Model ◽  
Fast Response ◽  
Electromagnetic Actuator ◽  
Linear Actuator ◽  
Element Analysis ◽  
New Type ◽  
Simulation Results ◽  
Electromagnetic Linear Actuator

A new type of electromagnetic linear actuator for vehicle active suspension was designed, with the characteristics of large stroke and force and fast response. Combined with the finite element analysis software, the finite element model of the electromagnetic actuator was built up. Based on the simulation results, a prototype of electromagnetic linear actuator with appropriate parameters was developed. And the electromagnetic force test of the actuator was done. By comparison of the finite element simulation results and the experimental data, it shows the corresponding results are consistent, indicating that the design and analysis of the electromagnetic actuator is correct.

scholarly journals Dynamic Analysis of the Tubular Linear Actuator With Permanent Magnets

2019 ◽  
Vol 216 (1) ◽  
pp. 5-15
Author(s):  
Krzysztof Just ◽  
Paweł Piskur ◽  
Mariusz Żokowski
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Simulation Model ◽  
Transient Analysis ◽  
Permanent Magnets ◽  
Simulation Analysis ◽  
Comsol Multiphysics ◽  
Linear Actuator ◽  
Matlab Simulink ◽  
Soft Ferromagnetic

Abstract In this paper a results of a transient analysis of the linear actuator is presented. The linear actuator consist of the three cylindrical unmovable coils surrounded by a soft ferromagnetic case, a runner made from sequence of ferromagnetic and permanent magnet rings. The model of the linear actuator was implemented into two software: the Comsol Multiphysics and the Matlab-Simulink. Both environments are commonly used in simulation analysis, but the first one uses Finite Element Method (FEM) and the second one uses Ordinary Differential Equations (ODE). Moreover, the dynamic model was analysed in Matlab-Simulink software with value of electromagnetic phenomena implemented from Comsol Multiphysics. Comparison was made due to the time needed for calculation, accuracy of the simulation model as well as the as utility for further optimization process.

Static Characteristics of Linear BLDC Motor Using Equivalent Magnetic Circuit and Finite Element Method

2004 ◽  
Vol 40 (2) ◽  
pp. 742-745 ◽  
Author(s):  
J.K. Kim ◽  
S.W. Joo ◽  
S.C. Hahn ◽  
J.P. Hong ◽  
D.H. Kang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Magnetic Circuit ◽  
Bldc Motor ◽  
Static Characteristics ◽  
Element Method

THRUST FORCE OF TFLM AS A DIRECTION OF FRICTIONAL RESISTANCE

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4469-4474 ◽  
Author(s):  
BYUNG-CHUL WOO ◽  
DO-KWAN HONG ◽  
DO-HYUN KANG
Keyword(s):  
Magnetic Circuit ◽  
Thrust Force ◽  
Frictional Resistance ◽  
Linear Motor ◽  
Linear Actuator ◽  
Applied Current ◽  
Simulation Results ◽  
Electromagnetic Linear Actuator ◽  
Good Agreement

This paper presents an integrated linear actuator combined with a Traverse Flux Linear Motor (TFLM) for household electric applications. They both use the same primary magnetic circuit, but they have different secondary movers. The paper presents a new design of linear motor for a new electromagnetic linear actuator, an integrated TFLM. The calculated thrust force (250[N]) is in good agreement with experiments. This result reveals that TFLM has a great potential to utilize the linear actuator for household electric applications as the weight of a linear actuator is reduced by two thirds. The thrust force was measured with the direction of applied current for the frictional resistance of linear motor. The simulation results will be compared with measured results.

Experimental Circuit Design on Electromagnetic Actuator for Vehicle Active Suspension

2014 ◽  
Vol 701-702 ◽  
pp. 1201-1204
Author(s):  
Fei Lai
Keyword(s):  
Circuit Design ◽  
Dead Zone ◽  
Active Suspension ◽  
Wave Force ◽  
Electromagnetic Actuator ◽  
Linear Actuator ◽  
Power Circuit ◽  
Test Platform ◽  
Drive Circuit ◽  
Electromagnetic Linear Actuator

Based upon the designed cylinder type structure of electromagnetic linear actuator for vehicle active suspension, the drive circuit of the tubular electromagnetic linear actuator and the dead zone unit were designed. By the AutoBox dSPACE control system and the intelligent power module IPM, the main power circuit was built up, and the simple test platform was also built up. Through the test platform, the square wave force and triangle wave force experiments were tested. Through the test, it shows that the drive circuit design of the electromagnetic actuator is feasible.

scholarly journals The impact of the magnetization direction on the static and dynamic parameters of an electromagnetic linear actuator

2018 ◽  
Vol 67 (2) ◽  
pp. 77-87
Author(s):  
Krzysztof Just ◽  
Paweł Piskur
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Simulation Analysis ◽  
Linear Actuator ◽  
Dynamic Parameters ◽  
Magnetization Direction ◽  
Halbach Array ◽  
Electromagnetic Linear Actuator ◽  
The Impact ◽  
Element Method

This paper presents a simulation analysis of the impact of magnetization direction on the static and dynamic parameters of an electromagnetic linear actuator. The simulation analysis computations were completed for three different magnetization configurations of permanent magnets (i.e. axial, radial, and a Halbach array). The finite element method (FEM) was applied which provided a good representation of the properties of actual physical objects. The computations enabled an investigation into and an assessment of the impact of the runner magnetization method on the static and dynamic properties of the drive. Keywords: modelling and simulation, electromagnetic actuator, finite element method, field analysis, Halbach array

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