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An Aircraft Hydraulic Duct Seal Test Bench That Can Simulate Operating Conditions and Installation Errors

An installation error, aircraft hydraulic technology, applied in the field of aircraft hydraulic duct seal test bench, can solve problems such as the great influence of duct installation process parameters, and achieve the effect of simple and convenient adjustment process

Active Publication Date: 2022-05-10
CHENGDU AIRCRAFT INDUSTRY GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practice, the axial installation distance between the hydraulic conduit and the conduit joint, the radial installation deviation, the deflection angle between the axes, and the connection tightening torque are the main factors affecting the tightness of the piping system, and the vibration environment of the piping system The working pressure of the hydraulic oil in the conduit has a great influence on the installation process parameters of the conduit. Therefore, in order to better clarify the relationship between the aircraft hydraulic conduit installation spacing, installation deviation, deflection angle, tightening torque and conduit connection tightness, it is necessary to base on Actual working conditions and actual installation errors are used to test the tightness of aircraft hydraulic conduits, but at present there is no test bench for testing the tightness of aircraft hydraulic conduits that can simulate working conditions and installation errors. Aircraft hydraulic conduit sealing test bench for simulating working conditions and installation errors

Method used

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  • An Aircraft Hydraulic Duct Seal Test Bench That Can Simulate Operating Conditions and Installation Errors
  • An Aircraft Hydraulic Duct Seal Test Bench That Can Simulate Operating Conditions and Installation Errors
  • An Aircraft Hydraulic Duct Seal Test Bench That Can Simulate Operating Conditions and Installation Errors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A sealing test bench for aircraft hydraulic conduit 5 that can simulate working conditions and installation errors in this embodiment, such as figure 1 As shown, an installation and adjustment test bench 1 for installing and adjusting the installation posture of the hydraulic conduit 5 is included, and at least one set of vibration excitation devices 2 for applying vibration to the hydraulic conduit 5 are slidably installed on the installation and adjustment test bench 1, so The installation and adjustment test bench 1 is also equipped with a signal acquisition device 4 for collecting vibration signals and stress changes of the hydraulic conduit 5; 3.

[0038] The installation and adjustment test bench 1 is used to install and fix hydraulic conduits 5 and conduit joints of various sizes and shapes, and to adjust the installation spacing, installation deviation, and installation deviation of the hydraulic conduits 5 to simulate the hydraulic conduits 5 in actual conditio...

Embodiment 2

[0041] This embodiment is further optimized on the basis of Embodiment 1, such as figure 1 , image 3 , Figure 4 As shown, the installation and adjustment test bench 1 includes a bottom plate 11 and a conduit adjustment seat 12. A plurality of parallel chutes are linearly arranged on the bottom plate 11, and the conduit adjustment seats 12 are slidably installed in the chute on both sides of the bottom plate 11. .

[0042] The installation and adjustment test bench 1 includes at least one base plate 11, and a plurality of chutes parallel to the width direction of the base plate are linearly arranged on the base plate 11 along the length direction. The position of the conduit adjusting seat 12 in the length direction on the bottom plate 11 can be changed in different chute, and the conduit adjusting seat 12 can slide along the chute to change the position of the conduit adjusting seat 12 in the width direction on the bottom plate 11 . At the same time, the conduit adjusting...

Embodiment 3

[0048] This embodiment is further optimized on the basis of the above-mentioned Embodiment 1 or 2, such as Figure 8 As shown, the excitation device 2 includes an excitation generator 21, an amplifier 22, an excitation mount 23, and a vibration exciter 24. The excitation mount 23 is slidably installed on the installation and adjustment test bench 1. A vibration exciter 24 is installed on the top of the vibration mounting base 23 along the horizontal or vertical direction, and the vibration exciter 24 receives the excitation signal sent by the vibration excitation generator 21 through the amplifier 22 .

[0049] The staff presets an excitation signal of a certain frequency and power through the excitation generator 21, and then the excitation signal is amplified by the amplifier 22 and then transmitted to the vibration exciter 24, and the vibration exciter 24 is installed in the installation adjustment through the excitation mounting seat 23. on the bottom plate 11 of the test ...

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Abstract

The invention discloses an aircraft hydraulic conduit sealing test bench capable of simulating working conditions and installation errors, comprising an installation and adjustment test bench for installing and adjusting the installation posture of a hydraulic conduit, and at least one set of The vibration excitation device that applies vibration to the hydraulic conduit, the installation and adjustment test bench is also equipped with a signal acquisition device for collecting the vibration signal and stress change of the hydraulic conduit; the installation and adjustment test bench is also equipped with a pressure for supplying hydraulic oil to the interior of the hydraulic conduit Supply device; the invention has the beneficial effects of real-time adjustment and simulation of the actual installation position of the hydraulic conduit, real-time adjustment and simulation of the vibration and hydraulic pressure received by the hydraulic conduit, and finally simulating the working conditions of the hydraulic conduit under different working conditions.

Description

technical field [0001] The invention belongs to the technical field of a hydraulic pipeline simulation test device, and in particular relates to an aircraft hydraulic pipeline sealing test bench capable of simulating working conditions and installation errors. Background technique [0002] As an important control system of the aircraft, the hydraulic duct system is used to control the movement of the aircraft's landing gear, canards, flat tail, wing flaps and other moving parts. Through the tight connection of the hydraulic conduit and the conduit joint, the tightness of the hydraulic system is ensured, thereby ensuring the function of the entire system. In practice, the axial installation distance, radial installation deviation, declination angle between the axes, and connection tightening torque between the hydraulic conduit and the conduit joint are the main factors that affect the sealing performance of the pipeline system, and the oscillating environment in which the pi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/00
CPCG01M3/00
Inventor 丁晓张永建郑世伟江磊唐健钧刘玉松王丹阳梁红琴彭炳康祝孟豪
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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