Aero-engine squirrel-cage bearing sleeve fatigue life assessment test platform

Abstract

The invention discloses an aero-engine squirrel-cage bearing sleeve fatigue life assessment test platform, and relates to the technical field of bearing sleeve life assessment test equipment, in particular to a test platform for assessing the fatigue life of an aero-engine squirrel-cage bearing sleeve. The system comprises a basic platform, a mechanical test bench and a monitoring and control system. The mechanical test bench is arranged at the upper part of the foundation platform; a squirrel-cage bearing sleeve is assembled on the mechanical test bed; and the monitoring and control system is separately mounted with the basic platform and the mechanical test bench, is arranged at a safe position outside the basic platform and the mechanical test bench, is connected with the basic platform and the mechanical test bench through data lines, and controls and monitors the basic platform and the mechanical test bench. According to the technical scheme, the problems that in the prior art, the requirement for the precision of a test bed is high, the cost is high, and the precision and safety of an experimental result are difficult to guarantee are solved.

Description

technical field [0001] The invention discloses an aero-engine squirrel cage bearing sleeve fatigue life assessment test platform, which relates to the technical field of bearing sleeve life assessment test equipment, in particular to a test bench for assessing the fatigue life of aero-engine squirrel cage bearing sleeves. Background technique [0002] High-speed rotating machinery will generate severe vibration when the speed reaches the critical speed. If no effective control measures are taken, violent vibration may cause damage to the machine and even lead to safety accidents. The high-speed rotating rotor system of aero-engine also needs to control its vibration. At present, the measures generally adopted are to install elastic bearing sleeves at the supporting positions of the bearings to reduce the critical speed of the rotor system, so that the shafting safely exceeds the critical speed at low speeds. [0003] With the development of science and technology, as an im...

AI Technical Summary

Problems solved by technology

The excitation table loads the load through the foundation excitation method, which is difficult to simulate the actual working conditions of the aeroengine squirrel-cage bearing sleeve, and the accuracy of the experimental results cannot be guaranteed; the rotor test bench can better simulate the Actual working conditions, but it has high requirements for the accuracy of the test bench, the cost is expensive, and the safety is difficult to guarantee

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