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Torsional Vibration Analysis on Engine & Transmission Systemof Wheeled 4×4 Vehicle

Li Chunming,Wei Laisheng,Jiang Lei  
The effect of resonance of engine transmission system and the characteristics of engine's excitation are studied. Then the software TVSIM (Torsional Vibration SIMulation) programmed by authors is used to analyze the mode frequencies and mode shapes for the engine transmission system of a 4×4-wheeled vehicle. The results show that although some mode frequencies are located in the range of engine's excitation frequency,the harmful effect can be minimized if the engine's running speed is properly limited.
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