Analysis and Lightweight Research of a New Type of Commercial Vehicle Seat
In order to solve the problem of interference and wear between the seat belt buckle and the seat body of a certain car body,a new seat structure was developed.The right side seat belt fixing point was designed on the seat body separately.The frame strength is studied.The lightweight analysis of the skeleton was carried out by the sensitivity analysis method.During the optimi-zation process,the collision conditions and modal conditions were comprehensively considered.By changing the thickness of some parts,the skeleton weight was reduced by 0.8kg,and the forward displacement of the optimized backrest was up to 66.5mm,The deviation from the forward displacement of the skeleton before optimization is 2.2mm,and the fluctuation rate of the modal fre-quency before and after optimization is 8.1%.Finally,in accordance with the requirements of regulations,the optimized seat frame was simulated and analyzed to verify the feasibility and effectiveness of the experimental plan,thereby verifying that the op-timized frame meets the seat strength regulations and lightweight requirements.The new seat frame The structure solves the prob-lem of body interference and provides a new concept and method for the later seat structure design.
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