In this paper results are presented from a study that investigates the use of centrifugally driven pendulum vibration absorbers for the attenuation of engine torsional vibrations. Such absorbers consist essentially of movable counterweights whose center of mass is restricted to move along a specified path relative to the rotational frame of reference. These devices are commonly used in light aircraft engines and helicopter rotors. The most common designs use a circular path for the absorber, tuned to a particular order of rotor disturbance, although more recent developments offer a wider variety of paths. Our goal here is to evaluate the system performance for a range of path types with different types of tuning. This analytical study is carried out for a simple mechanical model that includes a rotor and an absorber riding along a quite general path. Approximate solutions are obtained using a perturbation scheme and compared with detailed computational results. These results provide some valuable guidelines for path design considerations.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Attenuation of Engine Torsional Vibrations Using Tuned Pendulum Absorbers


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE Noise and Vibration Conference and Exposition ; 1997



    Publication date :

    1997-05-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Attenuation of Engine Torsional Vibrations Using Tuned Pendulum Absorbers

    Shaw, S. W. / Garg, V. / Chao, C.-P. et al. | British Library Conference Proceedings | 1997


    Attenuation of engine torsional vibrations using tuned pendulum absorbers

    Shaw,S.W. / Garg,V. / Chao,C.P. et al. | Automotive engineering | 1997


    Control of torsional vibrations by pendulum masses

    Stieglitz, A. | Engineering Index Backfile | 1942



    Vibration Reduction in a Variable Displacement Engine Using Pendulum Absorbers

    Nester, T. M. / Haddow, A. G. / Shaw, S. W. et al. | British Library Conference Proceedings | 2003