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
许林倩 1岳志强 2耿建 2王建亮2
作者信息
- 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
- 折叠
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.
Abstract
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Key words
power-based noise reduction/PBNR/SEA/contribution analysis/sound package/optimization/verification引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据