This paper discusses flexible, multi-body, coupled dynamic simulation of a crankshaft system acting upon a power plant structure that includes an engine block, cylinder heads, oil pan, crank train (i.e., crankshaft, connecting rods, bearings etc.) and transmission. The simulation is conducted using AVL/EXCITE [1]. Engine loads are first predicted, and then used to compute radiated noise from the engine assembly. Radiated noise level is computed by sweeping the excitation frequency through a range associated with the normal operating RPM of the engine. The results of the radiated noise computation are plotted on a “3D” Campbell plot diagram. The effects of different crankshaft materials is evaluated by imposing steel and cast iron material properties on the analysis model. A design of experiment (DOE) study is also performed to investigate the effects of main and rod bearing clearance, damper, and flexplate design on overall engine radiated sound power.This unique tool, used in the early and middle phases of design, is helpful in selecting engine components and crank train system parameters to produce better powertrain NVH performance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Powerplant Block-Crank Dynamic Interaction and Radiated Noise Prediction


    Additional title:

    Sae Technical Papers


    Contributors:
    Zhou, Ming (author) / Lepi, Steve (author)

    Conference:

    SAE 2003 Noise & Vibration Conference and Exhibition ; 2003



    Publication date :

    2003-05-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Powerplant Block-Crank Dynamic Interaction and Radiated Noise Prediction

    Zhou, M. / Lepi, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2003


    Powerplant block-crank dynamic interaction and radiated noise prediction

    Zhou,M. / Lepi,S. / Ford Motor,US | Automotive engineering | 2003


    Experimental analysis of interior noise due to powerplant radiated noise

    Farahanchi,F. / Griffiths,D. / Mason,A.S. et al. | Automotive engineering | 1995


    Experimental Analysis of Interior Noise Due to Powerplant Radiated Noise

    Mason, Anthony S. / Griffiths, David / Farahanchi, Faramarz et al. | SAE Technical Papers | 1995


    Experimental Analysis of Interior Noise Due to Powerplant Radiated Noise

    Farahanchi, F. / Griffiths, D. / Mason, A. S. et al. | British Library Conference Proceedings | 1995