发明名称 |
System and method of analyzing vibrations and identifying failure signatures in the vibrations |
摘要 |
An apparatus, computer program product and method of analyzing structures. Intrinsic Mode Functions (IMFs) are extracted from the data and the most energetic IMF is selected. A spline is fit to the envelope for the selected IMF. The spline derivative is determined. A stability spectrum is developed by separating the positive and negative results into two different spectra representing stable (positive) and unstable (negative) damping factors. The stability spectrum and the non-linearity indicator are applied to the data to isolate unstable vibrations.
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申请公布号 |
US7346461(B2) |
申请公布日期 |
2008.03.18 |
申请号 |
US20050251004 |
申请日期 |
2005.09.30 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
HUANG NORDEN E.;SALVINO LIMING W. |
分类号 |
G06F19/00;G01H17/00 |
主分类号 |
G06F19/00 |
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地址 |
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