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Engine blade fatigue testing device

An engine blade, fatigue test technology, applied in the field of fatigue test, can solve the problems of easy failure, long test time, increase the cost of engine blades, etc., to achieve the effect of prolonging the service life, simple and convenient operation, and significant production practical significance

Inactive Publication Date: 2017-02-22
TIANJIN AEROSPACE RELIA TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the number of vibration tests in the fatigue test is generally 10 7 For engine blades with lower first-order bending frequency, it means that the test time will be relatively long. Therefore, the vibration table will work for a long time under a larger load, which is prone to failure and significantly increases the impact on the engine blades. Cost of Conducting Vibration Fatigue Tests

Method used

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  • Engine blade fatigue testing device
  • Engine blade fatigue testing device

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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] figure 1 It is a schematic structural diagram of a fatigue test device for an engine blade provided by the present invention.

[0019] see figure 1 , the invention provides a fatigue test device for engine blades, which is used for performing vibration fatigue tests on engine blades. The fatigue test device specifically includes a vibration test bench 3, and the vibration test bench 3 is connected with a power amplifier 2 through a signal line, and the power amplifier 2 is connected with a signal generator 1 through a signal line;

[0020] The top of the vibration test bench 3 is fixedly connected with an amplifying tool 4, and the top of the amplifying tool 4 is fixedly connected with a clamping tool 5, and the left end of the clam...

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Abstract

The invention discloses an engine blade fatigue testing device which comprises a vibration test table (3). The vibration test table (3) is connected with a power amplifier (2) through a signal line, the power amplifier (2) is connected with a signal generator through a signal line, an amplification tool (4) is fixedly connected to the top of the vibration test table (3), a clamping tool (5) is fixedly connected to the top of the amplification tool (4), and the left end of the clamping tool (5) is fixedly connected with a blade (6) needing a vibration fatigue test. The engine blade fatigue testing device can reduce the load of the vibration test table under the situation that the blade vibration fatigue test is effectively completed at high quality, ensures that the vibration test table works for a long time and does not easily break down, the service life of the vibration test table is remarkably prolonged, and further the cost for the vibration fatigue test of engine blades is reduced.

Description

technical field [0001] The invention relates to the technical field of fatigue tests, in particular to a fatigue test device for engine blades. Background technique [0002] At present, the fatigue test device is a device that subjects the sample or component to periodic or randomly changing stress or strain to measure the fatigue limit and fatigue life. Before the product is put into use, it is necessary to carry out sufficient fatigue performance test and assessment in the laboratory to measure the fatigue limit and fatigue life of the product, so as to ensure that the product will not experience fatigue damage and failure during actual use. [0003] For engine blades used in fields such as aviation and navigation, it is one of the most critical parts in related engines. Due to the vibration fatigue failure of the blades, it may cause the engine to stop during operation, and sometimes even cause serious accidents, endangering people's major personal and property safety. ...

Claims

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Application Information

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IPC IPC(8): G01M7/02G01M13/00G01M15/00
CPCG01M7/02G01M13/00G01M15/00
Inventor 姚春斌李杰朱正邦
Owner TIANJIN AEROSPACE RELIA TECH
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