Recreational vehicles have a lot of potential consumers in China, especially the type C recreational vehicle is popular among consumers due to its advantages, prompting an increase in the production and sales volumes. The type C vehicle usually has a higher air drag than the common commercial vehicles due to its unique appearance. It can be reduced by optimizing the structural parameters, thus the energy consumed by the vehicle can be decreased. The external flow field of a recreational vehicle is analyzed by establishing its computational fluid dynamic (CFD) model. The characteristic of the RV’s external flow field is identified based on the simulation result. The approximation models of the vehicle roof parameters and air drag and vehicle volume are established by the response surface method (RSM). The vehicle roof parameters are optimized by multi-objective particle swarm optimization (MO-PSO). According to the comparison, the air drag is reduced by 2.89% and the vehicle volume is increased by 0.36%. For the RV, the proper geometry parameters can increase the inner space of the vehicle while reducing the air drag.


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    Title :

    Styling Parameter Optimization of the Type C Recreational Vehicle Air Drag


    Additional title:

    Sae Technical Papers


    Contributors:
    Huang, Bin (author) / Wei, Xiaoxu (author)

    Conference:

    Automotive Technical Papers ; 2022



    Publication date :

    2021-09-30




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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