It is generally known that the idling rattle in manual transmissions is caused by gear tooth portions that make repeated impact-generating vibrations in the backlashes. These vibrations result from rotational fluctuations of the flywheel induced by combustion in the engine.In the study reported here, the authors constructed an experimental setup using rotary encoders and a transient torsional angle converter that allowed the long-awaited direct measurement of impact-generating vibrations in the backlashes. Using this experimental result, the following ideas that the authors must pay attention for the numerical simulation are obtained. That is, transmission drag torque is to be input and treated as the offset value in the torque value of the torsional characteristics in the clutch disc, and coefficients of attenuation have great influence upon the calculation result.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Predictive Calculation of Idling Rattle in Manual Transmissions -Based on Experimental Measurements of Gear Vibration Occurring in Backlashes-


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2003 World Congress & Exhibition ; 2003



    Publication date :

    2003-03-03




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    2003-01-0678 Predictive Calculation of Idling Rattle in Manual Transmissions -Based on Experimental Measurements of Gear Vibration Occurring in Backlashes-

    Fujimoto, T. / Kizuka, T. / Society of Automotive Engineers | British Library Conference Proceedings | 2003


    Predictive calculation of idling rattle in manual transmissions

    Fujimoto,T. / Kizuka,T. / Mitsubishi Motor,JP | Automotive engineering | 2003


    Audible Noise Simulation – an Attempt to Predict Idling Rattle in Manual Transmissions

    Kizuka, Tomoaki / Fujimoto, Tsutomu | SAE Technical Papers | 2003


    Audible noise simulation - an attempt to predict idling rattle in manual transmissions

    Fujimoto,T. / Kizuka,T. / Mitsubishi Motor,JP | Automotive engineering | 2003


    Numerical and Experimental Analysis of Manual Transmissions - Gear Rattle

    Rahnejat, H. / De la Cruz, M. / Kelly, P. et al. | SAE Technical Papers | 2009