发明名称 |
Honeycomb core with internal septum and method of making same |
摘要 |
A sound attenuating panel for installation in the high velocity air flow region of an engine nacelle and/or other applications requiring sound absorbing material. The panel utilizing a single layer of either a metallic or nonmetallic cellular honeycomb core with a solid or perforated septum disposed internally therein. The septum may have a planar or non-planar configuration within the individual cells of the core thereby providing means for reducing the noise level of various sound frequencies created by a jet engine or any other sound producing devices for that matter. The invention of the planar or non-planar septum provides structural stabilization and/or vibration dampening to a bonded sandwich assembly.
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申请公布号 |
US4265955(A) |
申请公布日期 |
1981.05.05 |
申请号 |
US19780901337 |
申请日期 |
1978.05.01 |
申请人 |
THE BOEING COMPANY |
发明人 |
HARP, MARLYN F.;DIEPENBROCK, JR., JAMES L.;NELSEN, M. DEAN |
分类号 |
B29D24/00;B32B3/12;G10K11/172;(IPC1-7):B32B3/12 |
主分类号 |
B29D24/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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