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Fixed-wing aircraft rudder fatigue test system

A fatigue testing and testing system technology, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve the problem of not being able to simulate the hydraulic pressure of the actuator, and achieve the effect of low cost

Inactive Publication Date: 2014-11-19
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional fatigue testing machines can only simulate the external aerodynamic load, but not the hydraulic pressure of the actuator
At present, there is still a lack of effective and practical test system for rudder fatigue test of fixed-wing aircraft

Method used

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  • Fixed-wing aircraft rudder fatigue test system
  • Fixed-wing aircraft rudder fatigue test system
  • Fixed-wing aircraft rudder fatigue test system

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Experimental program
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specific Embodiment approach

[0024] Specific implementation method: combined Figure 1 to Figure 5 Specific embodiments of the present invention will be described.

[0025] exist Figure 5 Among them, a fixed-wing aircraft rudder fatigue test system of the present invention is composed of a test bench 1, a hydraulic station 6, an actuator tester 8, a digital storage oscilloscope 7, a rotary direct drive valve 4, a pipeline conversion joint 5, and an upper connection The clamp 2, the lower connecting clamp 9, the load cell 10 and the fixed-wing aircraft rudder 3 are composed. The position connection relationship between them is as follows: the upper connecting fixture 2 and the lower connecting fixture 9 are connected with the test bench 1 through the load cell 10, the two ends of the rudder 3 of the fixed-wing aircraft are installed on the upper and lower connecting fixtures 2 and 9, and the hydraulic pressure Station 6 is connected to the rotary direct drive valve 4 through the oil pipe, and the rotary...

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Abstract

Disclosed is a fixed-wing aircraft rudder fatigue test system, which consists of a test bench, a hydraulic station, a rotary direct drive valve, an actuator tester, a digital storage oscilloscope, a pipe adapter, upper and lower connecting clamps, a load cell and a fixed-wing aircraft rudder; and the upper connecting clamp is installed directly on the test bench, the lower connecting clamp is connected to the test bench through the load cell, the fixed-wing aircraft rudder is installed between the upper and lower connecting clamps, the hydraulic station is connected to the rotary direct drive valve through an oil pipe, the rotary direct drive valve is then connected to the fixed-wing aircraft rudder, the actuator tester is connected to the rotary direct drive valve and the load cell through a circuit, and the digital storage oscilloscope is connected to the actuator tester to display relevant information on the fixed-wing aircraft rudder. The test system can simulate the actual operating status and loading form of the fixed-wing aircraft, and the test results have significant engineering application values for fatigue life prediction of the fixed-wing aircraft rudder.

Description

technical field [0001] The invention relates to a fixed-wing aircraft rudder fatigue test system, which belongs to the technical field of test and test. Background technique [0002] During the working process, the rudder of a fixed-wing aircraft is subjected to alternating loads of varying magnitude and direction, and its fatigue life must be assessed during design and application. As a key subsystem of the fixed-wing aircraft control system, the rudder usually works under the hydraulic drive, which not only bears the hydraulic pressure of its own actuator, but also bears the external aerodynamic load. Conventional fatigue testing machines can only simulate the external aerodynamic load, but not the hydraulic pressure of the actuator. At present, there is still a lack of effective and practical test system for rudder fatigue test of fixed-wing aircraft. For this reason, the present invention integrates test bench, hydraulic station, rotary direct drive valve, actuator tes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 熊峻江张亦波满孜郁
Owner BEIHANG UNIV
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