When one of the natural frequencies of the drive shaft coincides with the excitation frequency of the engine, the vibration amplitude of the drive shaft increases significantly owing to the resonance of the drive shaft at the natural frequency. To reduce this resonance vibration, a single-mode dynamic damper (SMDD) has been used. A dynamic damper yields second resonances because of the mass and stiffness of the damper, although the resonance vibration of the drive shaft is reduced considerably. To reduce vibration due to the second resonance, the vibration parameters of the SMDD, such as frequency, damping coefficient, mass, and stiffness, should be optimized. However, it is difficult to apply an optimized SMDD to a vehicle because it is difficult to achieve an SMDD with optimal stiffness and damping coefficient. This paper presents a new dualmode dynamic damper (DMDD) for the further reduction of vibration due to the second resonance. The stiffness and damping coefficient of the DMDD are changed according to the rotating angle of the drive shaft. The vibration reduction effect of the SMDD is constant at the positions of all rotating angles of a drive shaft; however, that of the DMDD is different at the position of every rotating angle of the drive shaft. In this study, the vibration reduction performance of the DMDD is compared with that of the SMDD. Finally, the DMDD is applied to the drive shaft of a passenger car, and its effect on vibration reduction is confirmed in a vehicle test.


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    Title :

    Development of a Dual Mode Dynamic Damper for Vibration Reduction of Drive Shaft in a Passenger Car


    Additional title:

    Int.J Automot. Technol.


    Contributors:

    Published in:

    Publication date :

    2021-12-01


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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