Optimization Analysis and Experimental Verification of Pedestrian Head Protection Based on a Certain Micro Electric Vehicle
The paper takes a micro electric vehicle exported to the European Union as an example,which meets requirements of UN R127"Uniform provisions concerning the approval of motor vehicles withregard to their pedestrian safety performance"to pass regulatory certification successfully.After finishing leg development,the paper simplifies vehicle collision model,establishes a pedestrian protection basic model by cutting off front-end structure and refining the mesh based on meeting leg regulations in UN R127.Preliminary simulation analysis finds,the vehicle can not meet requirements of regulatory head test.Study on simulation animations and measuring distance of data models shows,there is less energy absorption space for the head at headlight and water channel areas.After confirming the optimization plan,the paper input data into pedestrian protection model for analysis and calculation,carries on practical experiments after confirming feasibility of optimization results.It is found that key risk points meet regulatory requirements,which proves feasibility of the optimization plan and necessity of simulation analysis.
UN R127pedestrian protectionoptimization designexperimental verification
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