Space plane structure vibration environment simulation test method
The invention discloses a vibration environment simulation test method for a space plane structure. The method comprises the following steps: 1, carrying out a bomb vibration simulation test on the space plane structure through a vibration environment simulation test device to obtain time domain vib...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a vibration environment simulation test method for a space plane structure. The method comprises the following steps: 1, carrying out a bomb vibration simulation test on the space plane structure through a vibration environment simulation test device to obtain time domain vibration actual measurement data; 2, verifying the obtained time domain vibration actual measurement data; 3, converting the verified time domain vibration measured data into frequency domain data; 4, determining a power spectrum density actual measurement spectrum of the vibration environment of the aerospace plane structure under the bombardment vibration; 5, determining a power spectrum density broadband prediction spectrum based on a genetic algorithm; 6, determining a power spectrum density narrowband peak prediction spectrum; and 7, determining a power spectral density prediction spectrum. According to the method, the power spectral density broadband prediction spectrum and the power spectral density narrowband |
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