Research on the control technology of aircraft landing gear buffer variable stroke

The landing gear performance test is an essential part of the aircraft development process. In order to simulate the state of the landing gear during take-off, cruise, and landing, the landing gear buffer is required to have the function of self-variable stroke. This paper proposes a new method to establish a variable travel control system for the landing gear buffer, which realizes the automatic adjustment of the buffer so that the landing gear fatigue test can be implemented quickly and accurately. In the test verification, with the help of the aircraft landing gear fatigue test jigs and fixtures, the operation process of the landing gear buffer variable stroke control system is studied to verify the feasibility of this system, and the system is applied to a certain type of aircraft landing gear fatigue test.