Simulation experiment device for aero-engine suction object on-line static monitoring system

Abstract

The invention relates to a simulation experiment device for an aero-engine suction object on-line static monitoring system. An air inlet extension pipe is connected with an air inlet end of an aviation turbojet engine, a particle injection device is communicated with the air inlet extension pipe through an injection port in the air inlet extension pipe, and the air inlet extension pipe is provided with monitoring devices in a subsection mode. One end of an exhaust nozzle extension pipe is connected with a jet end of the aviation turbojet engine, and the other end of the exhaust nozzle extension pipe is connected with a tail gas cooling device. The air inlet extension pipe, the particle injection device, the aviation turbojet engine, the exhaust nozzle extension pipe and the tail gas cooling device are fixed on a mounting platform. The simulation experiment device can provide warning information at an early stage when the engine sucks abnormal particles and impeller damage breakdowns happen, effectively simulate engine gas path environment, and provide a low-cost and high-simulation effective experiment platform for research of the aero-engine suction object on-line static monitoring system.

Description

technical field [0001] The invention relates to an engine, and more particularly relates to an electrostatic monitoring system and a simulation experiment device for inhaled matter in an aero-engine intake duct. The invention belongs to the field of aero-engine condition monitoring and fault diagnosis. Background technique [0002] When the aero-engine is working, the fan and compressor blades are often impacted by foreign objects (such as birds, gravel, etc.) sucked by the high-speed airflow, causing damage. This foreign object (Foreign Object) is often referred to as FO. Existing studies divide FO into two categories: soft impact (birds, ice, etc.) and hard impact (gravel, small metal objects, etc.). The former may occur during take-off or low-altitude flight, because the impact object is large, which will cause great damage to the engine, and even cause a major failure. In severe cases, it will cause a plane crash; Notches and pits occur locally, resulting in residual ...

AI Technical Summary

Problems solved by technology

The former may occur during take-off or low-altitude flight, because the impact object is large, which will cause great damage to the engine, and even cause a major failure. In severe cases, it will cause a plane crash; Notches and pits occur locally, resulting in residual stress, residual deformation and stress concentration, thereby reducing the fatigue life, and the unexpected fatigue damage of the blade is likely to have serious consequences, causing the blade to break

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