高原机场飞机制动器热力学研究  

作　　者：尚永锋[1] 孙琪 钟飞龙 

机构地区：[1]中国民用航空飞行学院,四川广汉618307

出　　处：《科技创新与应用》2022年第3期65-68,共4页Technology Innovation and Application

摘　　要：飞机机轮制动器主要起着减速、刹车和驻车的作用。高原机场温度高密度低,飞机气动性能下降,着陆真空速大,机轮制动器的工作条件苛刻。针对制动器副热衰退问题,利用ANSYS Workbench仿真平台,建立飞机制动器有限元模型,进行热-结构耦合分析,并进行试验验证。利用仿真数据,通过极差分析法,发现影响飞机制动器温升速率的主次顺序为:制动盘摩擦系数、机轮角速度、刹车压力。建立散点矩阵图,发现各参数对制动器温升速率均有显著影响,且参数之间存在交叉影响。通过多元线性回归方程建立制动器温升预测模型,并验证其相关性,对提高飞机运行保障能力具有实际意义。The aircraft wheel brake is mainly used for decelerating,braking and parking.The low temperature and high density of the plateau airport reduces the aerodynamic performance of the aircraft,and the landing true airspeed is high,and the working conditions of the wheel brake are harsh.Aiming at the problem of thermal decay of brake pair,the finite element model of aircraft brake is established using ANSYS Workbench simulation platform,the thermal-structural coupling analysis is carried out,and the experimental verification is carried out.Using simulation data and range analysis method,it is found that friction coefficient,wheel angular velocity and brake pressure are the main and secondary factors affecting the temperature rise rate of aircraft brake.The scatter matrix diagram is established,and it is found that each parameter has a significant effect on the brake temperature rise rate,and there is a cross effect among the parameters.The predictive model of brake temperature rise is established by multiple linear regression equation and its correlation is verified,which is of practical significance to improve the operational support capability of aircraft.

关 键 词：飞机制动器 热衰退 温升预测模型 ANSYS 

分 类 号：V328[航空宇航科学与技术—人机与环境工程]