基本信息:
- 专利标题： COMPOSITE ARTICLE FOR MITIGATING NOISE, VIBRATION, AND HARSHNESS
- 申请号：US16124926 申请日：2018-09-07
- 公开(公告)号：US20200082803A1 公开(公告)日：2020-03-12
- 发明人： Seongchan Pack , Su Jung Han , Martin S. Kramer
- 申请人： GM Global Technology Operations LLC
- 申请人地址： US MI Detroit
- 专利权人： GM Global Technology Operations LLC
- 当前专利权人： GM Global Technology Operations LLC
- 当前专利权人地址： US MI Detroit
- 主分类号： G10K11/168
- IPC分类号： G10K11/168 ; B32B5/02 ; B32B15/14 ; B32B3/12 ; B32B3/30
摘要：
A composite article configured for mitigating noise, vibration, and harshness includes a substrate having a first stiffness. The composite article includes a structural film formed from a composition and disposed on the substrate in a pattern that is arranged to dampen a sound wave having a first frequency and a first amplitude and propagatable in a first direction to a second frequency that is less than the first frequency and a second amplitude that is less than the first amplitude. The composite article includes a coating layer disposed on the pattern and configured to dampen the sound wave in the first direction and in a second direction that is perpendicular to the first direction. The composite article has a second stiffness that is greater than the first stiffness. A method of forming the composite article is also described.
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G10 | 乐器；声学 |
| ----G10K | 发声器械（发生玩具入A63H5/00；乐器或其配件见有关各小类，例如G10D）；不包含在其他类目中的声学器械 |
| ------G10K11/00 | 声音的发送、传导或定向的一般方法或器械；防护或减小噪声或其他次声波、声波或超声波的一般方法或器械 |
| --------G10K11/16 | .声音的阻尼方法或装置 |
| ----------G10K11/162 | ..材料的选择 |
| ------------G10K11/168 | ...不同材料的多层，例如三明治结构 |