发明名称 |
Evaluation of reflected time-energy profile for determination of damping capacity |
摘要 |
A method for measuring the acoustic damping capacity of a material or structure, such as a layered honeycomb structure, comprises tapping the honeycomb structure with a tapping rod. The tapping action imparts mechanical energy to the honeycomb structure. The method further comprises measuring, for a time interval, energy reflected from the honeycomb structure as a result of the tapping. The method further comprises creating a time-energy profile based on the energy reflected from the honeycomb structure during the time interval. The method further comprises evaluating the time-energy profile to determine the acoustic damping capacity of the honeycomb structure.
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申请公布号 |
US2004116823(A1) |
申请公布日期 |
2004.06.17 |
申请号 |
US20030671002 |
申请日期 |
2003.09.25 |
申请人 |
EARTHMAN JAMES C.;SHEETS CHERILYN G. |
发明人 |
EARTHMAN JAMES C.;SHEETS CHERILYN G. |
分类号 |
A61B5/11;A61B8/08;A61C8/00;A61C19/04;G01N3/06;G01N3/30;G01N29/04;G01N29/11;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/11 |
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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