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Method for evaluating service life of aviation motion hinge mechanism under corrosion condition and test device thereof

A technology for hinge mechanism and life evaluation, which is used in measuring devices, testing of mechanical components, testing of machine/structural components, etc. It can solve the problem that the motion mechanism cannot rotate in a full circle, and achieve the effect of accurate data support.

Active Publication Date: 2021-07-16
CHINA AERO POLYTECH ESTAB
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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method for evaluating the life of the aeronautical motion hinge mechanism under corrosive conditions, and improves the life test device of the motion hinge by using a hydraulic drive method, which can well solve the corrosion environment and the wear of the motion hinge Mechanism coupling, and can solve the problem that the existing kinematic mechanism cannot rotate the whole circle

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  • Method for evaluating service life of aviation motion hinge mechanism under corrosion condition and test device thereof
  • Method for evaluating service life of aviation motion hinge mechanism under corrosion condition and test device thereof
  • Method for evaluating service life of aviation motion hinge mechanism under corrosion condition and test device thereof

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specific Embodiment

[0139] Taking the aircraft landing gear as an example, during the aircraft parking-flight process, the components of the motion mechanism are subjected to environmental damage and stress damage alternately or coupled, resulting in changes in the structural properties, physical properties and functional performance of the components, resulting in component damage. The analysis results of the failure mode and its influencing factors of the landing gear kinematic mechanism show that the cumulative failure mechanism of parts corresponding to the failure mode is mainly component wear caused by load and service time, and part corrosion caused by environmental factors. The kinematic hinge of the landing gear kinematic mechanism has a typical corrosion and wear coupling damage mechanism during service. The corrosion behavior and wear behavior of corrosion and wear coupling are quite different from those of individual corrosion or wear. Corrosion can accelerate wear, and wear can also p...

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Abstract

The invention provides a method for evaluating the service life of an aviation motion hinge mechanism under a corrosion condition and a test device thereof. The method comprises the following steps: S1, constructing a corrosion coupling damage mechanism model through a material-level test; S2, simulating a corrosion environment experienced by the movement mechanism in a service period, accumulating part-level coupling damage test data, and optimizing the model; and S3, carrying out life evaluation on the aviation motion hinge mechanism in combination with test data. The invention also provides a test device capable of realizing large-angle rotation. The test device comprises an electromagnetic pressure regulating valve, an electromagnetic reversing valve, an angular displacement sensor, a tested hinge, a test fixture, a motor, an energy accumulator, a corrosive humid and hot environment test box and a control circuit. According to the invention, a mode of pressure regulation and electromagnetic valve double-control motor is adopted, so that the service life test device can meet the requirements of long-time, high-precision and large-swing-angle motion and the like, can effectively support the service life evaluation work of the aviation motion hinge mechanism under a corrosion condition, and provides accurate data support for the service life evaluation work.

Description

technical field [0001] The invention relates to the field of reliability and life evaluation of aviation equipment, in particular to a method for evaluating the life of an aviation motion hinge mechanism under corrosion conditions and a test device thereof. Background technique [0002] The aviation motion hinge mechanism is mostly used to transmit the load and torque of the aircraft motion mechanism. It has a series of advantages such as stable and reliable operation, low maintenance cost, and light weight. It is widely used in aircraft landing gear systems and aircraft wing surface control systems. The reliable operation of the hinge mechanism is of great significance to ensure the safe and reliable flight of the aircraft. [0003] The life / durability evaluation and life test of the aviation motion hinge mechanism are used to evaluate / verify the durability index requirements of the aviation motion hinge mechanism. Significance. [0004] The aircraft has the basic task ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/023G01M13/025G01M13/027
CPCG01M13/023G01M13/025G01M13/027Y02T90/00
Inventor 宋超边智聂扬张哲韩占杰滕明
Owner CHINA AERO POLYTECH ESTAB
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