PBNR试验和仿真对整车声学包影响分析  

Analysison Influence of PBNR Test and Simulation over Vehicle Sound Package

作　　者：许林倩 岳志强 耿建 王建亮 XU Linqian;YUE Zhiqiang;GENG Jian;WANG Jianliang(Qinghai University of Technology,Xining 810028,China;Great Wall Motor Company Limited,Baoding 071033,China)

机构地区：[1]青海理工大学,青海西宁810028 [2]长城汽车有限公司,河北保定071033

出　　处：《机械制造与自动化》2024年第4期193-196,共4页Machine Building & Automation

摘　　要：声学包是控制车内噪声的主要途径之一,PBNR是综合反映车辆的隔声能力、吸声能力和密封水平的指标。以某款SUV为研究对象,试验测试PBNR和SEA整车模型仿真分析PBNR数据对比,在SEA模型上进行贡献量分析,找出薄弱部位,对前围过孔、前风挡玻璃和前围隔热垫分析优化,为声学包的优化找到后续方向。Sound package is one of the main ways to control interior noise of vehicles,and PBNR is an index comprehensively reflecting the sound insulation ability,sound absorption ability and sealing level of vehicles.A certain SUV is taken as the research object to test PBNR and SEA vehicle model simulation analysis and PBNR data comparison.Contribution analysis is conducted on SEA model to find out the weak parts,and the front circumference through hole,front windshield and front wall insulation pad are analyzed and optimized for the subsequent direction of sound package optimization.

关 键 词：基于功率的噪声降低量 PBNR SEA 贡献量分析 声学包 优化 验证 

分 类 号：TB533.2[理学—物理]