717 変動に着目したベルト振動極大化の考察(エンジン回りの振動・騒音,OS-5 サイレント工学,総合テーマ「伝統を,未来へ!」)
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概要
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The mechanism of fluctuating vibration in engine accessory drive belts is studied. By the geometric study, it was clarified that the fluctuating belt vibration has multiple spectral lines centering around natural frequency. Some spectral lines fold back at 0 Hz when they have negative frequency. And it is assumed that the belt vibration will maximize when the lines cross the natural frequency. In this report, by the multi-body-dynamics simulation, that assumption was verified. And we found that the belt vibration will maximize because of parametric vibration rather than the folding negative frequency element.
- 2010-09-14
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