Isolating Vibration in Miniature Linear Cryogenic Cooler with Tuned Vibration Absorber

Kim, Young-Keun; Kim, Hong Bae; Kim, Eung-Hyun; Kim, Kyung-Soo

doi:10.3795/ksme-a.2010.34.5.605

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“…(1) 음향발생기, (2) 직선형 압축기 (3) 등과 작동원 리가 유사하며 최근 휴대전화의 알림용으로 적용 된 바가 있다. Abstract: In order to use a linear vibration motor for the actuator of a haptic interface, the motor must provide a higher reaction rate and longer service life than typical rotational motors with an eccentric mass.…”

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Design and Analysis of Linear Vibration Motor Equipped with Permanent-Magnet Springs and Voice-Coil Actuators

Choi¹,

Yoo²,

Noh³

2013

Transactions of the Korean Society of Mechanical Engineers A

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Design and Analysis of Linear Vibration Motor Equipped with Permanent-Magnet Springs and Voice-Coil Actuators

Choi¹,

Yoo²,

Noh³

2013

Transactions of the Korean Society of Mechanical Engineers A

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Suppressing harmonic vibrations of a miniature cryogenic cooler using an adaptive tunable vibration absorber based on magneto-rheological elastomers

Koo

Kim

et al. 2011

Review of Scientific Instruments

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This paper presents dynamic performances of an adaptive tunable vibration absorber (TVA) designed to suppress the main harmonic disturbance of a miniature linear cryogenic cooler, which is being used in space applications such as an observation satellite. The adaptive TVA employs a magneto-rheological elastomer (MRE) for a variable stiffness element. This study first investigates the shear modulus change of MRE samples with respect to the magnetic flux density, which varies through the alignment of particle chains. The MRE with the maximal shear modulus change is mounted for the TVA on a prototype cooler, which emulates the characteristics of a miniature cryogenic cooler. Using the test setup, a series of vibration tests are performed to evaluate the performance and efficacy of the MRE TVA and its re-tuning ability. The experimental results show that the MRE TVA is able to robustly suppress the vibration of the cooler even when the frequency of resonant vibration is changed up to 87% from its initial frequency.

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Isolating Vibration in Miniature Linear Cryogenic Cooler with Tuned Vibration Absorber

Cited by 2 publications

References 3 publications

Design and Analysis of Linear Vibration Motor Equipped with Permanent-Magnet Springs and Voice-Coil Actuators

Design and Analysis of Linear Vibration Motor Equipped with Permanent-Magnet Springs and Voice-Coil Actuators

Suppressing harmonic vibrations of a miniature cryogenic cooler using an adaptive tunable vibration absorber based on magneto-rheological elastomers

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