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本文介绍了抖振起始边界判定的常用方法,并采用数值计算分析了某民用飞机带通气短舱和动力短舱模型的高速抖振边界。经分析,观察极限流线和激波位置移动的方法可较精确地给出高速抖振起始升力系数。
This paper introduces the common method of judging the initial boundary of chattering vibration and analyzes the high-speed chattering boundary of a civil aircraft with ventilated nacelle and dynamic nacelle by numerical calculation. After analysis, the method of observing the flow of limit streamlines and shocks can give the lift coefficient of high-speed chattering more accurately.