Numerical simulations on the fluid-structure interaction were conducted using commercial software STAR-CCM+ and ABAQUS. The aeroelastic responses of a deflector under several different working conditions were simulated utilizing finite volume and finite element methods to investigate the aeroelastic problem of automotive deflectors. Results showed that the structural response of a top deflector is minimal under the influence of aerodynamics given its large structural stiffness. The size of the top deflector was optimised by using thickness as a variable. The volume and quality of the top deflector were significantly reduced, and its lightweight performance was improved to satisfy the stiffness performance requirement. The vibration of a side deflector structure was mainly induced by the turbulence on the structure surface. The amplitude of vibration was small and the vibration gradually converged in a few seconds without obvious regularity. Six structures were constructed to reduce the deformation of the side deflector structure and improve the noise, vibration and harshness performance of the heavy-duty truck. Five of these structures significantly reduced the elastic response of the side deflector.


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    Title :

    Aeroelastic Response and Structural Improvement for Heavy-Duty Truck Cab Deflectors


    Additional title:

    Sae Technical Papers


    Contributors:
    Wu, Bin (author) / Dong, Chun-bo (author) / Zhang, Jing-long (author) / Wang, Jing-yu (author) / Guo, Peng (author) / Sang, Tao (author) / Yan, Wei (author) / Hu, Xingjun (author)

    Conference:

    Automotive Technical Papers ; 2019



    Publication date :

    2019-01-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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