3-D Eddy Current Analysis of Linear Solenoid Using A New Auto Mesh Coupling Method

Ota, Terukazu; Kawase, Yoshihiro; Hirata, Katsuhiro; Mitsutake, Yoshio

doi:10.1541/ieejias.119.1393

Cited by 16 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this paper, we propose a numerical analysis method involving the use of the 3-D FEM (8)- (13) for predicting the dynamic characteristics of an LRA under PID control in PWM feedback control. The effectiveness of the method is verified through a comparison of the prediction with measurements.…”

Section: Introductionmentioning

confidence: 99%

3-D Finite Element Analysis of Linear Resonant Actuator under PID Control Using Back EMF

2012

Self Cite

View full text Add to dashboard Cite

Recently, linear resonant actuators (LRAs) have been used in a wide range of applications since they have many advantages: high efficiency, simple structure, easy control, and so on. On the other hand, they have a problem in that the amplitude decreases significantly in response to an external load. To overcome this problem, the effectiveness of PID control using back electromotive force (EMF) in maintaining a constant amplitude against an external load is investigated.This paper proposes a numerical method involving the use of the 3-D finite element method to analyze the dynamic characteristics of LRA when it is operated under PID control in PWM feedback control by using the back EMF detected from a coil. The effectiveness of this method is shown through measurements obtained by using a prototype.

show abstract

Section: Introductionmentioning

confidence: 99%

3-D Finite Element Analysis of Linear Resonant Actuator under PID Control Using Back EMF

2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…Several papers have been published that The solenoid involves nonlinearities and some parameters that are difficult to measure. In [4], a 3-D dynamic magnetic field problem based on Maxwell equations was analyzed by using FEM. Furthermore, there are cases in which the system is stabilized by mounting a simplified model for actual equipment and giving feedback control [5].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Input Pulse Considering Both High-Speed Response and Rebound Suppression for Solenoids

Okada

Noda

Miyoshi

et al. 2009

2009 International Conference on Advanced Computer Control

View full text Add to dashboard Cite

In this study, we propose that optimization of the input pulse results in a high-speed response and rebound suppression for solenoids. This input is given by two impulse voltage responses. The first impulse response rapidly drives the solenoid plunger, and the second suppresses the rebound that occurs upon reaching the reference position. In the past, these pulse timings have been determined by trial and error. In the present study, the solenoid model was built, and optimal timing of the input pulses was derived by giving an evaluation function considering both the plunger's rebound and the arrival time.

show abstract

“…As a result, alternatives to the rotary and gears model to achieve linear actuation are a topic of great interest. Then, various kinds of linear actuators have been studied (1)- (3) . These actuators give a lot of advantages; high frequency, low vibration, low power consumption, size, and so on, however, they are costly as compared with the conventional mechanism.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of A New Linear Actuator Using 3-D Finite Element Method

et al. 2006

Self Cite

View full text Add to dashboard Cite

This paper presents the dynamic analysis method for a new linear actuator using a DC motor. Fig. 1 shows the basic construction of the actuator. It mainly consists of a DC motor, two magnets with yokes, resonance springs, shaft, and bearings. A couple of multi-polarized permanent magnets of a rotor and a linear motion armature are opposite together. The rotor is directly connected to the shaft of a DC motor, and the mover is connected to the resonance spring. The operating principle of this actuator is that the armature linearly moves in direction of z-axis as the attractive or repulsive force acts on the armature according to the rotation of the rotor. It reciprocates twice while the rotor travels around when you use a couple of four polarized permanent magnets as shown in Fig. 2.In the proposed dynamic analysis method, the magnetic field is coupled with the eqations of rotation and linear motion, and an automesh modification method is developed to consider both motion.The dynamic charasteristics are computed when the rotation Table 1 shows the analyzed conditions. Fig. 3 shows the calculated time variation of the amplitude of the armature. As shown, it is found that the amplitude increases as time goes on, and it becomes stable with the amplitude of about 1.0 mm. Fig. 4 shows the characteristics of amplitude versus frequency. It is found that the amplitude of the actuator increases as the operating frequency increases because this actuator has a resonance frequency of about 240 Hz theoretically. The calculated results agree well with measured one at the frequency of 216.1 and 222.8 Hz. As the results, the validity of this method is confirmed. Yuya Hasegawa * * MemberTadashi Yamaguchi * * * MemberYoshihiro Kawase * * * Senior MemberKoichi Shamoto * * * Non-memberHiroyuki Kodama * * * Non-memberThis paper presents the coupled analysis method for a new structured linear actuator that can convert the rotation into linear actuation by the attractive and repulsive force of permanent magnets. In this method, the 3-D finite element mesh modification method for multi-motion analysis is taken into consideration. The effectiveness of this method is verified through the comparison with the measured results.

show abstract

3-D Eddy Current Analysis of Linear Solenoid Using A New Auto Mesh Coupling Method

Cited by 16 publications

References 0 publications

3-D Finite Element Analysis of Linear Resonant Actuator under PID Control Using Back EMF

3-D Finite Element Analysis of Linear Resonant Actuator under PID Control Using Back EMF

Optimization of Input Pulse Considering Both High-Speed Response and Rebound Suppression for Solenoids

Dynamic Analysis of A New Linear Actuator Using 3-D Finite Element Method

Contact Info

Product

Resources

About