An Analysis of Engine Shake (Effects of Coupling Engine Modes in Car Shake)

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  • エンジンシェイクの解析（カーシェイクにおけるエンジンモードの連成による効果）
  • エンジンシェイク ノ カイセキ カーシェイク ニ オケル エンジンモード ノ レンセイ ニ ヨル コウカ

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Car shake is arisen by imbalance and uniformity of tires. Typical car shake that is called the engine shake is occurred by the effect of bouncing resonance at a speed of midrange. In this paper, mechanism of this phenomenon is studied to reduce the vibration. It is cleared that engine shake are reduced by coupling mode with the pitching mode. The optimal condition for reducing the car shake is setting the engine pitching resonance coincided with the bouncing resonance of the engine. And optimum condition for reducing the vibration is expanded when the coupling coefficient is increased.

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