Modal analysis and structure optimisation of vehicle seat frame based on mass distribution method Online publication date: Fri, 07-Jun-2019
by Zheng Zhang; Dong Ye; Congda Lu; Feng Li; Yi Huang; Huaping Wu; Shaofei Jiang
International Journal of Vehicle Design (IJVD), Vol. 78, No. 1/2/3/4, 2018
Abstract: The vehicle seat is the main component of vehicle interiors that connects occupants and the car body directly. The vibration characteristics of vehicle seats severely affect the security and dynamic comfort of drivers/passengers. A vehicle seat frame developed in the cooperative company is selected as the research object in this paper. The mode of vehicle seat frame is compared by experimental modal test and finite element analysis (FEA) in order to verify the correctness of the finite element model of vehicle seat. Then, the influence of mass distribution on the vehicle seat frame modal characteristics is investigated by changing the local mass distribution of the vehicle seat through finite element modelling. By optimising the structure of the vehicle seat frame based on the analysis results, the dynamic characteristics of vehicle seat can be improved and the security and dynamic comfort can be enhanced.
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