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A marine climate environment-torsional load coupling test device and test method

A technology of torsional load and marine climate, which is applied in the direction of measuring devices, using repeated force/pulsation force to test the strength of materials, instruments, etc., can solve the problem that the torsion test device cannot work for a long time and reliably

Active Publication Date: 2020-10-30
NO 59 RES INST OF CHINA ORDNANCE IND +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a marine climate environment-torsional load coupling test device to solve the technical problem that the existing torsion test device cannot work permanently and reliably in the marine atmospheric environment

Method used

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  • A marine climate environment-torsional load coupling test device and test method
  • A marine climate environment-torsional load coupling test device and test method
  • A marine climate environment-torsional load coupling test device and test method

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A marine climate environment-torsional load coupling test device, such as figure 1 and figure 2As shown, a vertical layout is adopted, including a frame structure. A clamping mechanism 2 is arranged on the upper part of the frame structure. The clamping mechanism 2 is connected to a servo torsional fatigue system, and the servo torsional fatigue system is connected to a signal detection unit. The signal detection unit includes a The torque sensor 6 for detecting torque and the angle sensor 15 for detecting the torsion angle, the servo torsional fatigue system is connected to the hydraulic power system 17 and drives the servo torsional fatigue system to run through the hydraulic power system 17, and the servo torsional fatigue system is connected to the environmental test control system (this The environmental test control system of the invention refers to a conventional software control system capable of setting test conditions such as test loading cycle and loading fo...

Embodiment 2

[0053] A kind of marine climate environment-torsional load coupling test method, this test method adopts the test device in embodiment 1 to carry out static torsion test, and its steps include:

[0054] Step 1, open the environmental test control system, start the hydraulic power system of the marine climate environment-torsional load coupling test device;

[0055] Step 2: Drive the column and the beam to move upwards. When the clamping distance of the sample is greater than the total length of the sample, install one end of the sample on the upper chuck, then move the column and the moving beam down to a suitable position, and place the other end of the sample Installed on the lower chuck, lock the locking cylinder on both sides of the workbench to complete the sample installation;

[0056] Step 3. After the installation of the sample is completed, determine the torsion test condition according to the torsional load of the product corresponding to the sample in service, set t...

Embodiment 3

[0058] A marine climate environment-torsional load coupling test method, the test method adopts the test device in embodiment 1 to carry out dynamic torsion test on a 30CrMnSiNi2A high-strength steel sample whose size is Φ10×200mm, and the steps include:

[0059] Step 1, open the environmental test control system, start the hydraulic power system of the marine climate environment-torsional load coupling test device;

[0060] Step 2: Drive the column and the beam to move upwards. When the clamping distance of the sample is greater than the total length of the sample, install one end of the sample on the upper chuck, then move the column and the moving beam down to a suitable position, and place the other end of the sample Installed on the lower chuck, lock the locking cylinder on both sides of the workbench to complete the sample installation;

[0061] Step 3: After the installation of the sample is completed, determine the torsion test conditions according to the torsional loa...

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Abstract

The invention provides a marine climate environment-torsional load coupling test device and method. The test device is vertically arranged and comprises a rack structure, wherein a clamping mechanismis arranged at the upper part of the rack structure and is connected with a servo torsional fatigue system; the servo torsional fatigue system is connected with a hydraulic power system and drives theservo torsional fatigue system to operate through the hydraulic power system; the servo torsional fatigue system is connected with an environmental test control system for controlling test conditions; four sides of the upper parts of the clamping mechanism and the rack structure are hollowed out and exposed to the marine atmospheric environment, and the lower parts of the servo torsional fatiguesystem, a signal detection unit, the power system and the rack structure are arranged in a closed chamber with controllable temperature and humidity. The test method comprises the main step of conducting marine climate environment-torsional load coupling test by the test device. The test device has excellent properties of stability, synergy, waterproofness, reliability and the like, and can be used in the marine atmospheric environment for a long time.

Description

technical field [0001] The invention belongs to the technical field of material mechanics test, and in particular relates to a marine climate environment-torsion load coupling test device and a test method. Background technique [0002] Aircraft landing gear, vehicle spindles and other products serve in marine climate environments, and are generally subjected to severe environmental corrosion such as high temperature, high humidity, high salt spray, strong solar radiation and frequent dry / wet cycles, and repeated fatigue loads such as stretching and torsion This coupling effect is far greater than the simple superposition of equipment performance degradation when environmental corrosion and load fatigue act alone, and has a great impact on the mechanical properties of materials. Therefore, according to the traditional single natural environment test and laboratory torsional fatigue test, it is difficult to obtain the torsional performance degradation law of the material unde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/26G01N3/36G01N3/02
CPCG01N3/02G01N3/26G01N3/36G01N2203/0005G01N2203/0021G01N2203/0048G01N2203/0073G01N2203/024
Inventor 罗来正肖勇周堃王晓辉孔繁和张帷苏艳张泳向江涛吴帅钟勇杨小奎滕俊鹏贾鑫魏仁杰刘继彬
Owner NO 59 RES INST OF CHINA ORDNANCE IND
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