Optimization of Front Windshield Lower Beam Welding Assembly Based on NVH Performance
作者单位：NVH InstituteTechnology CenterDongfeng Motor Corporation
会议名称：《2014中国汽车工程学会年会》
会议日期：2014年
学科分类：08[工学] 082304[工学-载运工具运用工程] 080204[工学-车辆工程] 0802[工学-机械工程] 0823[工学-交通运输工程]
关 键 词：lower beam welding assembly booming noise stiffness transfer function
摘 要：To meet the need of pedestrian protection and ensure the vehicle has good energy absorption when the head hit the windshield,the front windshield lower beam welding assembly was required to be designed open *** a result,the vibration of the front windshield and firewall became strong,and the interior booming noise problem could be *** order to solve this problem,the simulation method was carried out to optimize the booming noise in this paper,the vibration of the front windshield and firewall was reduced by enhancing the windshield support structure and meanwhile,the noise transfer function was *** improved solution was validated in real *** test also shows that enhancing windshield support structure can effectively improve the high speed booming noise.