The four-channel vibrating testbed for full vehicle durability simulation is indispensable for testing vehicle performance. This paper combines theoretical analysis with experimental verification, and the four-channel vibrating simulation testbed is designed. The hardware system consists of three parts: hydraulic mechanical components, sensors, and closed-loop control system, and the software system consists of platform configuration system, platform management system, and basic test system. Based on the design of the hardware system and software system, the emphasis is put on signal processing. Based on the least squares principle, the undetermined coefficients of trend items are determined, the trend items are transformed into the arithmetic mean of signal data, and the models that eliminate constant trend items are established to eliminate the trend items. In order to reflect the fatigue process of parts more truly, the anomaly points were identified and eliminated based on the two-parameter rain-flow counting method. By representing the transfer function in the frequency domain, the measured signal is changed quickly by Fourier, and the uniqueness of the transfer function is ensured by establishing an invariant system. Finally, test verification was performed on the designed testbed with the white powder noise taken as the driving signal. The test results agree well with field testing results. The design of the testbed can meet the requirements of engineering application, and its design method and signal processing method are reasonable, which has certain theoretical research significance and engineering application value.


    Access

    Download


    Export, share and cite



    Title :

    Four-Channel Vibrating Testbed Design for Full Vehicle Durability Simulation


    Contributors:
    Huiqi Du (author) / Shiqing Xu (author)


    Publication date :

    2022




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    MMLV: vehicle durability design, simulation and testing

    Bolar,N. / Buchler,T. / Li,A. et al. | Automotive engineering | 2015


    MMLV: Vehicle Durability Design, Simulation and Testing

    Bolar, Nikhil / Buchler, Thomas / Li, Allen et al. | British Library Conference Proceedings | 2015


    MMLV: Vehicle Durability Design, Simulation and Testing

    Li, Allen / Wallace, Jeff / Bolar, Nikhil et al. | SAE Technical Papers | 2015


    Full Car Vibrating Model

    N. Jazar, Reza / Marzbani, Hormoz | Springer Verlag | 2023


    Development of Full Vehicle Durability Analysis Method

    Tamura, S. / Tsumura, S. / Ohhara, T. et al. | British Library Conference Proceedings | 2001