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| Analysis of Wind Resistance Power and Starting Process of Centrifuge |
| Received:August 01, 2015 Revised:October 10, 2015 |
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| DOI：10.7643/issn.1672-9242.2015.05.018 |
| KeyWord:centrifuge wind resistance power moment of momentum theorem principle of conservation of energy |
| Author | Institution |
| HUANG Peng |
Institute of System Engineering，China Academy of Engineering Physics，Mianyang ，China |
| YIN Yi-hui |
Institute of System Engineering，China Academy of Engineering Physics，Mianyang ，China |
| LI Shun-li |
Institute of System Engineering，China Academy of Engineering Physics，Mianyang ，China |
| WANG Peng-fei |
Institute of System Engineering，China Academy of Engineering Physics，Mianyang ，China |
| YU Shao-rong |
Institute of System Engineering，China Academy of Engineering Physics，Mianyang ，China |
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| Abstract: |
| Objective To study the wind resistance power and the starting process of centrifuge. Methods Targeting at the centrifuge which was operated in the cylindrical chamber, the arm moment and the friction moment applied to air were analyzed. Based on the moment of momentum theorem and the linear distribution assumption of air flow field, the equation of air flow ratio was deduced. Then, the explicit expression of air flow ratio was proposed, thus, the calculation formula of wind resistance power was derived. Results The functional relationship of the centrifuge angular velocity and the wind resistance power with time was deduced in the condition of constant starting torque of centrifuge. Based on the principle of energy conservation, the temperature rise of air was evaluated in the chamber. Conclusion Based on the design parameters of the centrifuge, this study proposed the time-angular velocity curve and the time-wind resistance power curve. The results of this study can be used as the theory basis in the centrifuge engineering design. |
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