Akio Sugimoto
Kobe Steel
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Publication
Featured researches published by Akio Sugimoto.
Journal of the Acoustical Society of America | 2008
Zenzo Yamaguchi; Akio Sugimoto; Yoshio Yano; J. Stuart Bolton
When reducing the sound radiated from a resonant structure, it is necessary to ensure that the driving frequency does not correspond to any of the system resonance frequencies. In addition, it may be desirable to use dynamic vibration absorbers to reduce the response at the driving frequency. In this paper, a low‐damping vibration absorber is studied for solving noise radiation problems from a resonant, light‐gauge structure driven by a force whose frequency and amplitude are constant and whose frequency does not match any of the system natural frequencies. When the driving frequency and the structures natural frequency are different, the structure cannot be represented by as a SDOF system. Therefore, the conventional design method, based on equivalent mass, is inapplicable. In this paper, a design method based on the mobility of the structure is proposed. By means of the proposed method, the sound power radiated from a simply supported beam with an attached absorber is calculated and it leads to the fol...
Transactions of the Japan Society of Mechanical Engineers. A | 2003
Hironori Yamashita; Naohiro Mizutani; Shigetoshi Araki; Akio Sugimoto
A tangent delta of a polymeric material, which influences the vibration damping capacity strongle, is high in value nearby the glass transition temperature of the material. Therefore, when the constituents of a polymer-based composite material are various in their glass transition temperatures, the magnitude of the macroscopic tangent delta of such a composite is expected to be high in wider range in temperature. In the present study, a shape memory polymer (SMP) particle/SMP matrix is used as a sample material and its macroscopic complex modulus and tangent delta are derived explicitly by using the equivalent inclusion method and the Mori-Tanakas theorem. For the case of a four mode type of distribution of the glass transition temperatures of particles, the value of the macroscopic tangent delta becomes higher than that of the monolithic SMP at any temperature and it becomes constant in the temperature range from 20°C to 60°C.
Archive | 1996
Tadashi Hatayama; Ichiro Yamagiwa; Kenshi Maekawa; Kenji Iwai; Toshimitsu Tanaka; Mamoru Taniuchi; Reiji Sanuki; Isamu Ueki; Toshihiko Sasaki; Akio Sugimoto; Kazuhisa Fujisawa
Archive | 2003
Akio Sugimoto; Hironobu Nakanishi
Archive | 2002
Hiroki Ueda; Ichiro Yamagiwa; Akio Sugimoto; Toshimitsu Tanaka; Narikazu Hashimoto; Takashi Oka
Archive | 1996
Toshiaki Yasumoto; Hiromichi Okumura; Kenji Iwai; Toshimitsu Tanaka; Toshihiko Sasaki; Akio Sugimoto; Hiroshi Kawashima; Naofumi Itano; Manabu Shibata; Yasuo Nanri
Journal of the Acoustical Society of America | 1999
Toshimitsu Tanaka; Nobuteru Hayashi; Syunichi Umemoto; Kenji Iwai; Hiroshi Tanimoto; Akio Sugimoto
Archive | 2002
Ichiro Yamagiwa; Toshimitsu Tanaka; Hiroki Ueda; Hideo Utsuno; Toru Sakatani; Akio Sugimoto
Archive | 1997
Tadashi Hatayama; Ichiro Yamagiwa; Kenshi Maekawa; Kenji Iwai; Toshimitsu Tanaka; Mamoru Taniuchi; Reiji Sanuki; Isamu Ueki; Toshihiko Sasaki; Akio Sugimoto; Kazuhisa Fujisawa
Archive | 2010
Nagoya Fujiwara; Akio Sugimoto; Hiroshi Hashimoto; Takayasu Fujiura; Naoki Kikuchi; Koji Inoue