Development of a New Pneumatic Silencer to reduce unpleasantness of a sound

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  • MURAMATSU Hisami
    Department of Mechanical Engineering, Numazu College of Technology
  • ONO Hirokazu
    Department of Mechanical Engineering, Faculty of Engineering, Mie University
  • ADACHI Masaaki
    Mechanical and Electrical Engineering Course, Advanced Engineering Course, Numazu College of Technology

Abstract

A high performance pneumatic silencer to reduce unpleasantness of the noise is newly developed in this paper. It is shown that a sound effect of fade-in found by consideration of results from ergonomics is obtained by the silencer. The silencer consists of three kinds of silencers and a device. The device uses artificial muscle utilized a shape memory alloy. It is cleared that sound power level of the silencer is very low.

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