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Fast drive of displacement magnification mechanism with flexure hinge using loading type impact damper

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Abstract

A displacement magnification mechanism which uses flexure motion guide using elastic hinges can realize smooth frictionless motion but has poor vibration damping capability. An impact damper is a damping mechanism which uses collision energy to dissipate vibration energy. If the damper is used for vibration control of the flexure mechanism, it may be able to dissipate unexpected vibration without killing the merits of the flexure mechanism. In the paper, a loading type impact damper is applied to settle down transient vibration of a displacement magnification mechanism. We investigate differences of damping effect by setting conditions of the damper. It is shown that the impact damper can eliminate residual vibration at step response effectively without steady state error. The experimental displacement magnification mechanism with impact damper can settle down less than 1/5 of the response without the damper under appropriate setting conditions. Influence of natural frequency ratio between damper and displacement magnification mechanism is investigated. Influences of indentation at impact point are also examined.

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Authors and Affiliations

  1. Department of Mechanical Systems Engineering, Shinshu University, Wakasato 4-17-1, Nagano, Japan

    Nobuhiko Henmi, Yuta Sumi & Michihiko Tanaka

Authors
  1. Nobuhiko Henmi
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  2. Yuta Sumi
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  3. Michihiko Tanaka
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Corresponding author

Correspondence to Nobuhiko Henmi.

Additional information

Nobuhiko Henmi received his B.S. in Engineering from the Science University of Tokyo, Japan, in 1986. He then received his M.S. and Ph.D. degrees from Tokyo Institute of Technology in 1988 and 1993, respectively. Dr. Henmi is currently an Associate Professor at Shinshu University in Nagano, Japan. Research interests include precision engineering, mechatronics, and piezoelectric actuator and sensor.

Yuta Sumi received his B.S. in Engineering from Shinshu University, Nagano, Japan, in 2008. He is now studying io the Master’s program at the Graduate School of Shinshu University.

Michihiko Tanaka received his B.S. degree in Engineering from Yamanashi University, Japan, in 1968. He then received his M.S. and Ph.D. degrees from Tokyo University in 1970 and 1974, respectively. Dr. Tanaka is currently a Professor at Shinshu University in Nagano, Japan. Research interests include machine element design, mechanism, and history of engineering.

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Henmi, N., Sumi, Y. & Tanaka, M. Fast drive of displacement magnification mechanism with flexure hinge using loading type impact damper. J Mech Sci Technol 24, 211–214 (2010). https://doi.org/10.1007/s12206-009-1165-y

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  • DOI: https://doi.org/10.1007/s12206-009-1165-y

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