Helicopter tail rotor booster fatigue test system

Abstract

A helicopter tail rotor booster fatigue test system is composed of a fatigue testing machine, a hydraulic station, a rotary direct-drive valve, an actuator tester, a digital storage oscilloscope, a crossover coupling, an upper clamp, a lower clamp and a helicopter tail rotor booster, wherein the upper clamp and the lower clamp are installed on the fatigue testing machine, the two ends of the helicopter tail rotor booster are installed on the upper clamp and on the lower clamp respectively, the hydraulic station is connected with the rotary direct-drive valve through an oil pipe, the rotary direct-drive valve is further connected with the helicopter tail rotor booster, the actuator tester is connected with the rotary direct-drive valve through a circuit, and the digital storage oscilloscope is connected with the actuator tester to display relevant information of the helicopter tail rotor booster. The helicopter tail rotor booster fatigue test system not only can simulate the external aerodynamic loading action but also can simulate the actuator hydraulic pressure action, and the testing result has great engineering application significance for helicopter tail rotor booster fatigue lifetime determination.

Description

technical field [0001] The invention relates to a fatigue test system for a helicopter tail rotor booster, which belongs to the technical field of test and test. Background technique [0002] During the working process, the helicopter tail rotor booster is constantly subjected to alternating loads, and its fatigue life must be assessed during design and application. Helicopter tail rotor booster usually works under hydraulic drive as a subsystem of the helicopter. It not only bears the hydraulic pressure of its own actuator, but also bears the aerodynamic load. The conventional fatigue testing machine can only simulate the external aerodynamic load, but cannot At present, there is still a lack of effective and practical test system for the fatigue test of the helicopter tail rotor booster to simulate the hydraulic pressure of the actuator. For this reason, the present invention integrates conventional fatigue testing machine, hydraulic station, rotary direct drive valve, ac...

AI Technical Summary

Problems solved by technology

Helicopter tail rotor booster usually works under hydraulic drive as a subsystem of the helicopter. It not only bears the hydraulic pressure of its own actuator, but also bears the aerodynamic load. The conventional fatigue testing machine can only simulate the external aerodynamic load, but cannot To simulate the hydraulic pressure of the actuator, at present, there is still a lack of an effective and practical test system for the fatigue test of the helicopter tail rotor booster

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