| Citation: | QIAN Renjun, LI Benwei, XU Yanjun, et al. Effect of heating of turbine on the safety of carrier-based aircraft ski jump takeoff[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(12): 2293-2301. doi: 10.13700/j.bh.1001-5965.2019.0597(in Chinese)
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The turbine engine under unheated conditions produces thrust loss and influences the safety of carrier-based aircraft ski jump takeoff. The difference of the takeoff limit weight under heating and unheated conditions is analyzed. The dynamic model of carrier-based aircraft ski jump takeoff is established. According to the ski jump takeoff safety criterion, the takeoff limit weight is determined by the minimum climb rate in flight path, which is not less than zero. And the takeoff limit weight under heating and unheated conditions is compared when taking off from 105 m and 195 m runway with different deck wind and different air temperature. The results show that heating of turbine has a greater impact on the takeoff limit weight of 105 m short runway. With the increase of deck wind, the relative deviation of takeoff limit weight under heating and unheated conditions decreases gradually. The maximum and minimum deviation are 2.70% and 2.44% respectively when taking off from 105 m runway. The maximum and minimum deviation are 2.64% and 2.40% respectively when taking off from 195 m runway. With the increase of air temperature, the relative deviation of takeoff limit weight under heating and unheated conditions increases first and then slows down. The maximum and minimum deviation are 2.79% and 2.56% respectively when taking off from 105 m runway. The maximum and minimum deviation are 2.69% and 2.46% respectively when taking off from 195 m runway.
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