Aero-engine actuator cylinder hydraulic test stand, aircraft hydraulic actuator cylinder, valve, pressure container impulse test stand.

1. GJB 3849-1999 Requirements and methods for impulse testing of aircraft hydraulic actuators, valves, pressure containers.

2. Suitable for impulse test of aviation pressure containers, hoses, and other aircraft accessories. Inspect the product quality and service life of aviation pressure containers, hydraulic actuator cylinders, valves and pipe fittings,etc, also can realize impulse pressure waveforms such as water hammer wave, sine wave and trapezoidal wave.

3. Introduction: Aero-engine actuator cylinders directly affects aircraft maneuverability and take-off and landing performance by changing the cross-sectional area of the tail nozzle, therefore it needs a special test stand to conduct flow rate test, seal test, and action uniformity test to strictly control the reliability of its work. The existing testing methods of the actuator cylinder hydraulic test stand are backward, low in accuracy and precision, and the efficiency is not high. Through the redesign of the system principle, the use of split structure, precise control of oil temperature, selection of high-precision detection components and other measures, a new design of the hydraulic test stand for the actuator cylinder is carried out, which improves the accuracy, precision and efficiency of the test stand, and achieves good results in practical application. Key words: aero-engine; actuator cylinder; test stand.