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Vibration exciter suspension positioning device

A positioning device and vibration exciter technology, which is applied in the direction of measuring device, vibration test, machine/structural component testing, etc., can solve the problem of inaccurate positioning of the suspension vibration exciter, reduce a large number of operations, realize three-dimensional space positioning, Effect of Improving Calibration Accuracy

Pending Publication Date: 2021-12-10
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a vibration exciter suspension positioning device that can solve the inaccurate positioning of the suspension vibration exciter in the modal test and the problem of high-altitude operation of personnel

Method used

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  • Vibration exciter suspension positioning device
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] see Figure 1-2 , the present invention provides a technical solution: a vibrator suspension positioning device, including a fixed bracket 1, the fixed bracket 1 is installed on the modal test platform through the fixed end 2, the fixed bracket 1 is fixedly connected with the fixed beam 3, and the fixed beam 3 is fixedly connected with a number of No. 1 rollers 4, and the fixed connection method is screw connection or welding. The No. 1 roller 4 is rollingly connected to the mobile bracket 6, the fixed beam 3 is slidably connected to the mobile bracket 6, and the mobile bracket 6 is fixedly connected to the mobile beam 5. The mobile beam 5 is fixedly connected with a number of No. 1 rollers 4, the front end of the mobile bracket 6 is fixedly connected with the fine-tuning device fixed beam 8, and the fine-tuning device fixed beam 8 is pr...

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Abstract

A vibration exciter suspension positioning device disclosed by the present invention comprises a fixed support and a fixed end, the fixed support is installed on a modal test platform through the fixed end, the fixed support is provided with a fixed beam and a movable support sliding relative to the fixed beam, and the movable support is provided with a fine adjustment device connected with a suspension device. A vibration exciter is arranged at the lower end of the suspension device. By means of the vibration exciter suspension positioning device, the three-dimensional space positioning effect of the vibration exciter can be achieved, and operation of personnel is greatly reduced through automatic positioning of the vibration exciter suspension and adjusting device. And meanwhile, the calibration precision is effectively improved, specifically, the attitude calibration precision is superior to 5'', and the position calibration precision is superior to 0.05 mm.

Description

technical field [0001] The invention belongs to the technical field of large-scale spacecraft modal tests. Specifically, the invention relates to a vibration exciter suspension and positioning device, which can realize three-dimensional accurate positioning of vibration excitation equipment for modal tests. Background technique [0002] Vibration equipment is a very important component when conducting modal tests. Whether the components can be installed correctly directly determines whether the test results are correct or not. Usually, for the modal test of small components, the vibration exciter can be installed by fixing it on the ground or on the support; and for the modal test of large specimens, the excitation point is sometimes selected at a very high position, such as More than 10 meters, for such a high installation location, the installation of the exciter faces high requirements. One is to ensure that the installation of the exciter is in place, and the other is to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02
CPCG01M7/02G01M7/022
Inventor 焦安超沈志强姜强刘闯李新明朱建斌武耀潘小琛王磊高文硕刘凤强
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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