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| Influence of Specimen′ s Modal Characteristics on Control Effect of Two-exciter Vibration Test |
| Received:July 24, 2012 Revised:December 15, 2012 |
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| DOI： |
| KeyWord:two-exciter vibration test control modal finite element |
| Author | Institution |
| ZHAO Huai-yun |
Institute of Systems Engineering，China Academy of Engineering Physics，Mianyang ，China |
| TIAN Guang-ming |
Institute of Systems Engineering，China Academy of Engineering Physics，Mianyang ，China |
| ZHONG Ji-gen |
Institute of Systems Engineering，China Academy of Engineering Physics，Mianyang ，China |
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| Abstract: |
| Two-exciter vibration testing method has been widely used for slender specimens such as aircraft store. Due to the complicated dynamic characteristics of the specimens, two-exciter vibration test is difficult to control or the vibration control overshoot will occurred. So it is necessary to do modal analysis before two-exciter vibration test. The critical frequency points in the vibration testing control were prejudged based on modal analysis of the specimen. The results of two-exciter vibration test showed that prejudgments of critical frequency points are exact. |
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