Design and characterization of a linear micropositioner based on solenoid and compliant mechanism

Chaídes, Oscar; Ahuett–Garza, Horacio

doi:10.1016/j.mechatronics.2011.08.005

Cited by 6 publications

(2 citation statements)

References 18 publications

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“…Co., Ltd., Busan, Korea), load cell (FUTEK, Irvine, CA, USA), laser displacement sensor (Keyence, Osaka, Japan), thermocouple (OMEGA Engineering Inc., Seoul, Korea), linear stage (SCIENCETOWN, Incheon, Korea), power supply (Tektronix Inc., Beaverton, OR, USA) and data acquisition system (National Instruments, Austin, TX, USA). Before the test, the solenoid was fixed to the linear stage, which can move vertically to adjust the distances between magnetic poles [20]. To measure the attractive force of the plunger generated by the magnetization of the core, the load cell was placed on the same central axis as the fixed solenoid, and plunger A was fastened to the load cell to measure the attractive force.…”

Section: Analysis Of Attractive Forcementioning

confidence: 99%

Design of a Solenoid Actuator for a Cylinder Valve in a Fuel Cell Vehicle

2016

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Green vehicles include electric vehicles, natural gas vehicles, fuel cell vehicles (FCV), and vehicles running on fuel such as a biodiesel or an ethanol blend. An FCV is equipped with a cylinder valve installed in an ultra-high pressure vessel to control the hydrogen flow. For this purpose, an optimum design of the solenoid actuator is necessary to ensure reliability when driving an FCV. In this study, an electromagnetic field analysis for ensuring reliable operation of the solenoid actuator was conducted by using Maxwell V15. The electromagnetic field analysis was performed by magneto static technique, according to the distance between magnetic poles, in order to predict the attraction force. Finally, the attraction force was validated through comparison between the Maxwell results and measurement results. From the results, the error of attraction force ranged from 2.33 to 3.85 N at testing conditions.

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Section: Analysis Of Attractive Forcementioning

confidence: 99%

Design of a Solenoid Actuator for a Cylinder Valve in a Fuel Cell Vehicle

2016

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“…A gripping device with compliant mechanism and planar moving coil actuator was also created [2]. As electromagnetic actuator features moderate output force, large displacement, and can be driven by common low cost, low voltage controller, it has good potential of being a precision motion or position provider Chih-Hung G. Li [3]- [4], in which the force equilibrium is involved between the electromagnetic force and an elastic load. However, one major difficulty with the solenoid is the highly non-linear nature of the electromagnetic force with respect to the air gap and the electric current.…”

Section: Introductionmentioning

confidence: 99%

Development of a Linearly Responsive Electromagnetic Actuator

2015

International Institute of Engineers April 20-21, 2015 Bangkok (Thailand)

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A novel electromagnetic actuator is reported in this paper. The device can be used as a precision position provider, as the movement of the free solenoid responds linearly to the input electric current. Such a linear relationship can make it very easy to control the device, with a simple open-loop control scheme. The novel actuator comprises of two solenoids and an elastomeric cone, sandwiched in between the solenoids. The elastomeric cone provides non-linear reaction force in resistance to the electromagnetic force, and as a result, force equilibrium can be achieved at the desired working points to form a straight line of position response versus input current. Finite element analysis was used for accurate calculation of the highly non-linear spring characteristics of the elastomeric cone. Among the geometries studied, it was found that a cone shape of 6mm in height, 7mm in diameter, and an aperture of 57 o produces a force-displacement curve that best suits the need for the spring performance. A prototype of the actuator, along with the elastomeric cone was made and tested. The results showed that the movement of the actuator responds to the input current quite linearly, with an R 2 of 0.983.

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