Coupled vibration simulation experiment table of aero-engine hydraulic pipeline system

Abstract

The invention provides a coupled vibration simulation experiment table of an aero-engine hydraulic pipeline system and belongs to the technical field of pipe vibration simulation experiments. The coupled vibration simulation experiment table comprises a pipeline carrier shock excitation unit, a signal collection analysis control unit and a hydraulic pipeline oil supply system unit. Compared with the prior art, a testing hydraulic pipeline of the hydraulic pipeline oil supply system unit is installed on a case body of the pipeline carrier shock excitation unit. Due to the fact that the case body simulates a structure of an aero-engine case, the vibration influence of the aero-engine case to the testing hydraulic pipe can be simulated, simulation of different installing modes of an aero-engine hydraulic pipeline is achieved by changing the installing-clamping position of a hoop on the case body, a vibration signal acquired by a displacement sensor of the signal collection analysis control unit is analyzed and processed to obtain vibration characteristics and a mechanism, a reasonable basis is provided for hydraulic pipeline system vibration faults, and the vibration situation of the hydraulic pipeline system can be really reflected.

Description

technical field [0001] The invention belongs to the technical field of pipeline vibration simulation experiments, in particular to an aeroengine hydraulic pipeline system coupling vibration simulation test bench. Background technique [0002] The stability of the hydraulic piping system of an aero-engine directly affects the safe operation of the aero-engine, and the vibration test of the hydraulic piping system is an effective means to improve the stability of the aero-engine. Vibration testing can analyze the characteristics and mechanism of vibration, and provide Provide a reasonable basis for the vibration failure of the hydraulic pipeline system. [0003] At present, most of the vibration tests of hydraulic piping systems at home and abroad use single pipes as the research and test objects, but it is difficult for aeroengine hydraulic piping systems to study the vibration characteristics of the entire piping system based on the test data of a single pipe, that is, the p...

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Problems solved by technology

[0003] At present, most of the vibration tests of hydraulic piping systems at home and abroad use single pipes as the research and test objects, but it is difficult for aeroengine hydraulic piping systems to study the vibration characteristics of the entire piping system based on the test data of a single pipe, that is, the piping Coupled vibration characteristics with the pipeline

Therefore, relevant technical personnel have designed a pipeline vibration simulation test bench, but the existing test bench can only perform vibration tests on the hydraulic pipeline itself, because the existing test bench does not fully consider the coupling of the vibration of the aero-engine casing to the hydraulic pipeline system The influence of vibration cannot fully reflect the real vibration of the hydraulic piping system of the aero-engine

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