Multi-parameter online comprehensive detection device for variable diameter aviation hydraulic pipeline

Abstract

The invention belongs to the technical field of vibration measurement of hydraulic pipelines, and in particular relates to a multi-parameter online comprehensive detection device for variable diameter aviation hydraulic pipelines. The sensor base in each inner threaded hole, the spring connected with the top of the sensor base, the sensor placement groove arranged at the bottom of the sensor base, the sensor, the positioning bolts threadedly connected with each inner threaded hole, the number of numbers provided on the main body Each buckle includes a buckle base fixed on the main body and a male buckle, and a female buckle connected with the buckle base and the male buckle respectively. The slender main body of the invention can be assembled according to the diameter of the pipeline to be measured, which can realize the effective connection of hydraulic pipelines with different diameters and complex structures, and the disassembly is convenient and effectively improves the measurement efficiency. The different vibration characteristics information of the pipeline system such as frequency and temperature are extracted simultaneously.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pipeline vibration measurement, in particular to a multi-parameter on-line comprehensive detection device for variable diameter aviation hydraulic pipelines. Background technique [0002] Aviation hydraulic pipelines are distributed throughout the aircraft to provide hydraulic power for aircraft flight control and lift-enhancing devices, which are subject to complex aircraft vibration environment. The main reason for the vibration failure of the aviation hydraulic pipeline system is: under the action of the environmental vibration load of the body, the pipeline produces a large displacement forced vibration, especially when the body frequency is close to the natural frequency of the hydraulic pipeline system, structural resonance will occur. High vibration stress causes cumulative damage, which leads to fatigue failure. Therefore, necessary analysis or tests are needed to evaluate the vibration ...

AI Technical Summary

Problems solved by technology

[0003] The commonly used aviation hydraulic pipeline parameter measurement device is through the intervention instrument measurement of the hydraulic pipeline system under test, which not only affects the efficiency due to the difficulty of disassembly and assembly, but also affects the dynamic characteristics of the hydraulic pipeline under test

The measurement object is usually a single straight pipe with a simple structure, but the hydraulic pipeline to be tested is actually more complicated, and the diameter of the pipe is changeable. The measurement of multiple parameters is of great significance for studying the vibration characteristics and temperature rise of the hydraulic pipeline under test

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