Servo shake table and control method thereof

A vibrating table and server technology, applied in vibration testing, measuring devices, testing of machines/structural components, etc., can solve the problem of limited natural frequency, small scope of application, and the inability of electric vibrating tables to meet the requirements of civil engineering vibration tests, etc. problems, to achieve the effect of frequency regulation

Pending Publication Date: 2017-07-18
INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION
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  • Abstract
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AI Technical Summary

Problems solved by technology

The natural vibration frequency of civil engineering is in the range of low frequency or ultra-low frequency. For example, the natural frequency of Jiangyin Yangtze River Bridge can be 0.05Hz, the natural frequency of Shenzhen Diwang Building is 0.178Hz, and the natural frequency of general civil buildings is lower than 5Hz. , it is obvious that the electric vibration table cannot meet the vibration test requirements of civil engineering
Mechanical vibration generally belongs to the medium and high frequency range, and the hydraulic vibration table cannot meet the experimental requirements of mechanical vibration
[0004] From a broader point of view, no matter what kind of vibrating table, its natural frequency is limited and its scope of application is small

Method used

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  • Servo shake table and control method thereof
  • Servo shake table and control method thereof
  • Servo shake table and control method thereof

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0037] In related technologies, different types of v...

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Abstract

The invention provides a servo shake table and a control method thereof, and relates to the shake table field; the servo shake table adds an active server on an original main body frame and a control circuit; a second coil and a third coil of the active server are respectively located in a magnetic slot, and respectively wind on a movable coil rack; the second coil, a servo amplifier, a feedback resistor and the third coil are electrically connected in sequence; in usage, the amplification multiple of the private server amplifier can be adjusted so as to adjust the shake table whole shaking frequency, thus adjusting the frequency.

Description

technical field [0001] The invention relates to the field of vibrating tables, in particular to a servo vibrating table and a control method. Background technique [0002] The vibration table is used to simulate the various environments that the product encounters during the manufacturing, assembly, transportation, and use execution stages, and is used to identify whether the product can withstand environmental vibration. It is suitable for various industries such as electronics, electromechanical, optoelectronics, automobiles, toys, etc. research, development, quality control, and manufacturing. [0003] At present, the vibration tables widely used in vibration tests at home and abroad generally adopt electric vibration tables or hydraulic vibration tables. The frequency range of the electric vibrating table is 5-5000Hz, and the distortion of the acceleration waveform is ≤25% within the frequency range of 5Hz≤f≤20Hz; the frequency range of the hydraulic vibrating table is ...

Claims

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Application Information

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IPC IPC(8): G01M7/02
CPCG01M7/022Y02P70/10
Inventor 高峰杨学山车晓军王雷杨巧玉尚帅锟贾行建
Owner INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION
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