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| Vibration Response of Centrifuge Facility in a Combined Vibration and Centrifuge Environment |
| Received:July 22, 2015 Revised:October 10, 2015 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2015.05.014 |
| KeyWord:combination of centrifuge and vibration structural respond vibration system |
| Author | Institution |
| LI Chun-zhi |
Institute of System Engineering，CAEP，Mianyang ，China |
| NIU Bao-liang |
Institute of System Engineering，CAEP，Mianyang ，China |
| LI Qi-sheng |
Institute of System Engineering，CAEP，Mianyang ，China |
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| Abstract: |
| Objective To study vibration response and its transmissibility through the fixture of shaking table, the connection device of the hanging basket, and the head and the middle part of the centrifuge arm under the shaker working condition in a combined vibration and centrifuge environment. Methods According to the vibration system under different conditions, the acceleration reaction of the centrifuge arm and the connection device was measured to calculate the vibration acceleration transmissibility based on the shaking table. Results In the combined vibration and centrifuge environment, the experiment results showed that the vibration response decreased gradually through the shaking table, the connection device of the hanging basket, the head of the arm to the middle part of the arm and the vibration response was the minimum at the middle part of the arm, indicating a decreasing pattern of the response transmissibility. The vertical transmissibility was 9.4%, while the tangential transmissibility was 2.9% in the seismic test of the centrifuge structure. The tangential transmissibility was 3.1%, while the vertical transmissibility was 2.3% in the sine wave test of the centrifuge structure, and the transmissibility increased with the increase of beat frequency. The radial transmissibility was 2.3% , while the tangential transmissibility was 2.6% in the combined vibration test. Conclusion The vibration analysis provides a data reference for large and complex system design of centrifuge and model modification through this experiment in which the vibration response and the transmission pattern of the connection device and the centrifuge arm in a combined vibration and centrifuge environment were obtained. |
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