飞机防滑刹车系统副温度场研究

摘要

This paper begins with the importance of simulation of the brake-disks temperature field of aircraft anti -skid brake system.The full paper deduces the finite element model of temperature field with radiation boundary condition, considering the airplane state.The state is decided by the anti-skid control rule, brake pressure and heat generation.The simulation is carried out with ANSYS.The results in the full paper are much closer to the empirical temperature and truth.It provides the theoretical foundation of the airplane brake systems design and research.%在飞机制动系统刹车副温度场优化问题的研究中,由于飞机制动过程摩擦产生的高温可严重影响刹车副的热机械性能,出现热衰退现象,影响飞机着陆安全,但又无法通过测量得到温度场分布.为解决上述问题,提出建立综合多方面因素的刹车副温度场计算模型.建立了具有热辐射边界条件飞机刹车副温度场计算的有限元模型,考虑了飞机制动过程中热生成率的影响,并用ANSYS对其进行仿真计算,仿真结果与经验温度基本吻合,证明了考虑热生成率的实际情况并结合热辐射边界条件的飞机温度场有限元计算模型更加合理,为飞机刹车装置温度场设计研究提供了科学依据.