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Three-axis six-freedom degree vibration test apparatus

A vibration test and degree of freedom technology, applied in vibration test, measurement device, machine/structural component test, etc., can solve the problem of cumbersome and time-consuming operation, inaccurate evaluation of product vibration performance, and inability to simulate the simultaneous action of three axes and six degrees of freedom. The composite vibration environment and other problems can be improved to improve efficiency and accuracy.

Active Publication Date: 2010-07-14
SUZHOU SUSHI TESTING INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a brand-new three-axis six-degree-of-freedom vibration testing device. The complex vibration environment that acts on the product leads to the technical problem of inaccurate evaluation of the vibration performance of the product

Method used

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  • Three-axis six-freedom degree vibration test apparatus
  • Three-axis six-freedom degree vibration test apparatus
  • Three-axis six-freedom degree vibration test apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment one: see attached figure 1 ~ attached image 3 As shown, a three-axis six-degree-of-freedom vibration test device includes a test piece workbench 1, with the center of gravity of the test piece workbench 1 as the coordinate origin, and a first vibration generator 2 is set in the horizontal X-axis direction. The vibration generator is an electric vibration table, and the vibrating body of the vibration generator (i.e. the moving coil of the electric vibration table) is connected to the side of the test piece table 1 through the first spherical connector 3, and the first vibration generator 2 The central axis of the vibrating body (that is, the moving coil) is coincident with the horizontal X-axis; the second vibration generator 4 and the third vibration generator 5 are arranged side by side in the direction of the horizontal Y-axis, and these two vibration generators are also electric vibration tables , they are symmetrical about the Y axis, and the central a...

Embodiment 2

[0045] Embodiment two: see attached Figure 4 As shown, a three-axis six-degree-of-freedom vibration test device includes a test piece workbench 1. The difference from Embodiment 1 is that the center of gravity of the test piece workbench 1 is used as the origin of coordinates, and in the direction of the horizontal X-axis Also be provided with the 6th vibrating generator 19, this vibrating generator and the first vibrating generator 2 are symmetrical with the X axis, and both central axes are arranged in the same horizontal plane passing the origin, the vibrating body of the 6th vibrating generator 19 It is connected with the test piece table 1 through the sixth spherical connector 20; the seventh vibration generator 21 and the eighth vibration generator 22 are arranged side by side in the Z-axis direction, and these two vibration generators are respectively located on the X-axis and In the other two diagonal phases (specifically the second quadrant and the fourth quadrant) o...

Embodiment 3

[0049] Embodiment three: see attached Figure 5 As shown, a three-axis six-degree-of-freedom vibration test device includes a test piece workbench 1. The difference from Embodiment 1 is that the coordinate system defines direction changes. As shown in the figure, Embodiment 1 is now defined The Y-axis in the central plain is the X-axis, the original X-axis is the Y-axis, and the positions of the first vibration generator 2, the second vibration generator 4, and the third vibration generator 5 are exchanged with the change of the coordinate system; The four vibration generators 8 and the fifth vibration generator 9 are respectively located in the second quadrant and the fourth quadrant divided by the X axis and the Y axis.

[0050] Others are the same as those in Embodiment 1, and will not be repeated here. The working process of this embodiment can be summarized from the aforementioned first and second embodiments, and will not be repeated here.

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Abstract

A vibration test equipment with three axis and six degrees of freedom, comprising a sample worktable, a first vibration generator arranged in the level X-axis direction with the mass centre of the sample worktable used as origin of coordinates; a second vibration generator and a third vibration generator which are arranged side by side in the level Y-axis direction with the vibration body of the second vibration generator connected with the sample worktable through a second sphericity connector and the vibration body of the third vibration generator connected with the sample worktable througha third sphericity connector; a forth vibration generator and a fifth vibration generator which are arranged side by side in the level Z-axis direction with the vibration body of the forth vibration generator connected with the bottom surface of the sample worktable through a forth sphericity connector and the vibration body of the fifth vibration generator connected with the bottom surface of the sample worktable through a fifth sphericity connector. The invention can simulate X, Y, Z triaxiality and six degrees of freedom complex vibration environment in true environment to reproduce the real working condition more accurately, largely increasing the accuracy of the vibration test result.

Description

technical field [0001] The invention relates to mechanical environment test equipment, in particular to a vibration test device with three axes of X, Y and Z and six degrees of freedom. The vibration test device can be used to simulate the vibration environment with six degrees of freedom in the three axes of X, Y and Z acting independently, and can also be used to simulate the composite vibration environment in which the six degrees of freedom in the three axes of X, Y and Z act simultaneously . Background technique [0002] The vibration experienced by some products in the actual environment is the compound vibration of X, Y, and Z axes with six degrees of freedom (that is, moving along the X, Y, and Z axes in space, and can rotate around the X, Y, and Z axes at the same time). At present, due to the limitations of test equipment and means, the three-axis simultaneous vibration test can only be simulated by a separate single-axis vibration test, and the simultaneous three...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/06
Inventor 濮龙锋李平武元桢
Owner SUZHOU SUSHI TESTING INSTR CO LTD
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