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| Influences of Correlation Coefficient in Two-point Excitations |
| Received:April 05, 2017 Revised:August 15, 2017 |
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| DOI：10.7643/issn.1672-9242.2017.08.006 |
| KeyWord:two-point excitation correlation coefficient random vibration |
| Author | Institution |
| NONG Shao-ning |
Institute of Systems Engineering CAEP, Mianyang, , China |
| ZHAO Huai-yun |
Institute of Systems Engineering CAEP, Mianyang, , China |
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| Abstract: |
| Objective The paper aims to derive the computational formula for random vibration response of structures under two-point excitations with spectrum function. Methods Response characteristics of the structural under two-point excitations were discussed with cross spectrum and correlation coefficient. Results For linear structures, the stimulated modal effects varied with different correlation coefficients under two-point excitations. With the increase of the correlation coefficient, the structural response spectrum increased and reduced alternately on adjacent resonance peaks. Conclusion Influences of structural vibration response character with different correlation coefficient should be worth of attention of the designers of engineering structures. |
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