Volume 35 Issue 4
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NIU Wenjing, LIAN Wenlei, LIN Lingjiao. Cooling performance of electric actuating mechanism on ,aircrafts based on heat pipes[J]. Journal of Aerospace Power, 2020, 35(4): 711-721. doi: 10.13224/j.cnki.jasp.2020.04.005
Citation: NIU Wenjing, LIAN Wenlei, LIN Lingjiao. Cooling performance of electric actuating mechanism on ,aircrafts based on heat pipes[J]. Journal of Aerospace Power, 2020, 35(4): 711-721. doi: 10.13224/j.cnki.jasp.2020.04.005
shu

Cooling performance of electric actuating mechanism on ,aircrafts based on heat pipes

doi: 10.13224/j.cnki.jasp.2020.04.005
  • 1.

    College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

  • 2.

    Shanghai Aircraft Design and Research Institute,Commercial Aircraft Corporation of China Limited,Shanghai 201210,China

  • Received Date: 2019-10-15
  • Publish Date: 2020-04-28
    Abstract
  • Research on cooling technology was carried out considering that the electric actuating mechanism on aircrafts would produce much heat in working. The empirical formula was fitted based on the experiment data. A cooling method for an aircraft electric actuating mechanism was proposed based on the heat pipe-fuel cooling system, and a numerical model describing the flow and heat transfer of the cooling system was established and validated feasibly. The influence of some factors on the cooling performance of the cooling system was studied by numerical simulation. Results showed that the error between numerical simulation and experiment data was within 14.6%. The heat pipe-fuel cooling system could reduce the temperature rise of the electromechanical actuator by 12.61% compared with natural convection. For the driver, the fan cooling method was superior to the heat pipe-fuel cooling method. When the effective thermal conductivity of heat pipes reached 7 000 W/(m·K), the heat pipe-fuel cooling system could achieve a good cooling performance, and continuously increasing the effective thermal conductivity of heat pipes couldnt effectively improve the cooling performance of the cooling system. This research provides a reference for designing an efficient cooling system for electric actuating mechanisms.

     

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