Identify of Vibration Damping Mechanisms of Porous Sintered Material by Frequency Response Function of FFT Analyzer

DOI Web Site 3 Citations 3 References
  • KASAI Minoru
    Dept. of Mechanical System Engineering, Graduate School of Engineering, Toyama Prefectural Univ.,
  • HIBINO Atsushi
    Dept. of Mechanical System Engineering, Inst. of Technology, Toyama Prefectural Univ.
  • YASHIRO Haruki
    Dept. of Mechanical System Engineering, Inst. of Technology, Toyama Prefectural Univ.

Bibliographic Information

Other Title
  • FFT アナライザの周波数応答関数による多孔質焼結材の振動減衰機構の同定
  • FFT アナライザ ノ シュウハスウ オウトウ カンスウ ニ ヨル タコウシツ ショウケツザイ ノ シンドウ ゲンスイ キコウ ノ ドウテイ

Search this article

Abstract

ABSTRACT<BR>In the fields of an eco-friendly automobile, an advanced industrial machine, and a precision electronic device, controlling of vibrational behavior of the sintering parts obtained from powder metallurgy is required. In this paper, the vibration behavior of porous material made by powder metallurgy is investigated by a FFT analyzer. Pure Cu powders (Average particle size: 36 µm, 89 µm) are used as initial substances. The powder is compressed by a metal die with 100～200 MPa, and a plate shaped Cu compact is made. Using a high vacuum furnace, the green compact is heated from room temperature with 10 ˚C/min, and is sintered at 700～1000 ˚C for 1 hour. By changing the powder particle size, the compaction pressure, and the sintering temperature, some kinds of sintered Cu porous plates which had various microstructures, varied porosity, and different mechanical properties are sintered. For the sintered Cu porous plate obtained, microstructure observation, tensile test and vibration test are performed. <br>The vibration behavior of the sintered Cu porous plates is analyzed from the frequency response function of the FFT analyzer. The damping coefficient of the sintered Cu porous plate depends on the porosity and the open pore ratio. The vibrational behavior of the sintered material is able to be easily measured by FFT analyzer.

Journal

Citations (3)*help

See more

References(3)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top