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Undercarriage heat power in aircraft landing

机译:飞机着陆时的起落架热功率

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This paper analyse the energy flowwhich generates heat and causes wear during the acceleration period ofundercarriage wheels after aircraft touchdown on the runway. In thisacceleration period, a sliding between the wheel tyre and runway surface takesplace. The sliding friction causes high temperature which emits pollution smokeand produces excessive tyre wear. A model based on mechanical dynamics isestablished for analysing the high temperature, heat transfer rate to tyre andconcrete runway. The effect of adopting a pre-rotation device is also analysed inorder to lower the temperature and reduce the tyre wear. The width of tyre isshown also having significant effect on the raised temperature. A blackenedrunway is believed to have changed the heat conduction therefore affecting thelanding quality.
机译:本文分析了飞机降落在跑道上后,在起落架车轮加速期间产生热量并引起磨损的能量流。在该加速期间,车轮轮胎与跑道表面之间发生滑动。滑动摩擦会导致高温,从而散发污染烟气并导致轮胎过度磨损。建立了基于力学动力学的模型,用于分析高温,轮胎和混凝土跑道的传热速率。还分析了采用预旋转装置的效果,以降低温度并减少轮胎磨损。轮胎的宽度也显示出对升高的温度有显着影响。据认为,变黑的跑道改变了热传导,因此影响着陆质量。

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