基于杠杆原理的起落架疲劳试验随动加载装置分析

Performance Analysis of Loading Device Based on the Lever Principle for Landing Gear Fatigue Test

在飞机起落架疲劳试验中,常会遇到载荷施加点随试验件的变形而移动的问题,本文设置了一种起落架疲劳试验随动加载装置,阐明了该装置的结构及工作原理,解决了载荷施加点随试验件变形的问题,同时应用于某型飞机起落架疲劳试验中,具有较大的现实意义和应用价值。

In fatigue tests of landing gears, points at which loads are applied would usually move, as units under test are deformed under load. A loading device for fatigue test of landing gears is developed in this paper to provide a solution to the displacement of load applying point with deformation of unit under test. The structure layout and operating principle of the loading device are described and the application of the device to the fatigue test of the landing gear for an aircraft is discussed.