A three-degree-of-freedom low-frequency vibration test device

A low-frequency vibration and test device technology, used in vibration testing, measuring devices, and testing of machine/structural components, etc., can solve the problems of low operating frequency and large thrust, and achieve the effect of convenient real-time operation.

Active Publication Date: 2021-10-08
CHINA AERO POLYTECH ESTAB
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no better such device in China, especially the low-frequency motion or vibration test device with large thrust, multiple degrees of freedom, and low working frequency

Method used

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  • A three-degree-of-freedom low-frequency vibration test device
  • A three-degree-of-freedom low-frequency vibration test device
  • A three-degree-of-freedom low-frequency vibration test device

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Embodiment Construction

[0024] Hereinafter, the embodiment, specific structure and working principle of the present invention will be described with reference to the drawings and specific embodiments.

[0025] like figure 1 Shown is a three-degree-of-freedom low-frequency vibration test device according to an embodiment of the present invention, which includes a control system 1 , a power amplifier system 2 , a hydraulic system 3 and a vibration platform 4 .

[0026] The driving voltage signal generated by the control system 1 is input to the hydraulic system 3 after passing through the power amplifier system 2, and the hydraulic system 3 is connected to the vibration platform 4 to make the vibration platform 4 vibrate, and at the same time, the response on the vibration plane 4 is fed back to the control system 1, thereby realizing vibration control .

[0027] Preferably, the control system 1 includes a MIMO controller 11 and a servo controller 12 . The MIMO controller 11 communicates with the ser...

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Abstract

The invention provides a three-degree-of-freedom low-frequency vibration test device, which includes a control system, a power amplifier system, a hydraulic system, and a vibration platform. The vibration platform is provided with sensors, and the control system includes a MIMO controller and a servo controller for outputting and receiving vibrations. signal and realize the vibration control of the vibration platform; the control system generates a driving voltage signal, which is input into the hydraulic system after passing through the power amplifier system, and the hydraulic system is connected with the vibration platform to make the vibration platform vibrate, and the sensor detects the vibration response and feeds back the response to the control system; the control system It includes a MIMO controller and a servo controller, and the MIMO controller is connected to the servo controller; the vibration platform is a three-degree-of-freedom low-frequency vibration platform, and the vibration platform includes a hydraulic cylinder, a static pressure bearing, a vibration table, a sensor and a table protection device. The system of the present invention can work at low frequency, the frequency range is 0.5Hz-200Hz, the real-time operation is convenient, and it can truly simulate the actual use environment of three degrees of freedom of shipboard equipment.

Description

technical field [0001] The invention relates to the technical field of vibration testing, and more specifically, the invention relates to a three-degree-of-freedom low-frequency vibration testing device. Background technique [0002] What the existing shipborne weapons and equipment actually experience is a multi-degree-of-freedom low-frequency motion or vibration environment. With the update of shipborne weapons and equipment, the corresponding real simulated vibration environment is more diversified. In order to more realistically simulate the real motion or vibration environment faced by shipboard weapons and equipment, independent research and development of vibration test equipment has become an important development trend. This equipment can simulate low-frequency motion or vibration environments such as tilting and swaying experienced by shipboard equipment. [0003] At present, there is no better device of this kind in China, especially a low-frequency motion or vib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/06
CPCG01M7/06
Inventor 韩伟李敏伟常志刚魏莱游亚飞孙瑞峰许津玮
Owner CHINA AERO POLYTECH ESTAB
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