基本信息:
- 专利标题： 基于混响室测试评价整车的隔声性能的方法
- 专利标题（英）：Method of testing and evaluating sound insulation property of finished automobile based on reverberation room
- 申请号：CN201210225051.5 申请日：2012-07-03
- 公开(公告)号：CN103115666A 公开(公告)日：2013-05-22
- 发明人： 刘宏玉 , 万玉平 , 章晓轩 , 吴行让 , 靳红英
- 申请人： 重庆长安汽车股份有限公司
- 申请人地址： 重庆市江北区建新东路260号
- 专利权人： 重庆长安汽车股份有限公司
- 当前专利权人： 重庆长安汽车股份有限公司
- 当前专利权人地址： 重庆市江北区建新东路260号
- 主分类号： G01H17/00
- IPC分类号： G01H17/00 ; G01M17/007
The invention provides a method testing and evaluating sound insulation property of a finished automobile based on a reverberation room. Stimulating sound pressure sources are arranged at random multiple positions inside the reverberation room. Sound pressure testers are arranged at multiple positions inside the sealed finished automobile. A sound pressure mean square value outside an automobile body inside the reverberation room is calculated to obtain a stimulating sound pressure. A sound pressure mean square value inside the finished automobile is calculated to obtain a receiving sound pressure. A difference between the stimulating sound pressure and the receiving sound pressure is a sound decay. Thus the sound insulation property of the finished automobile is judged.
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01H | 机械振动或超声波、声波或次声波的测量 |
| ------G01H17/00 | 不包含在本小类其他组中的机械振动或超声波、声波或次声波的测量 |