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Vibrating table off-line three-parameter control automatic parameter adjusting method

A vibrating table and automatic adjustment technology, which is applied in the direction of control/adjustment system, adaptive control, general control system, etc., can solve the problems of spending a lot of time and energy, and achieve a wide range of applications, convenient and fast adjustment parameters, and convenient modification control The effect of the parameter

Pending Publication Date: 2022-07-15
BBK TEST SYST CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the target waveform and the test piece change, the control parameters of the three parameters need to be re-adjusted. Manually adjusting the parameters will take a lot of time and effort, and a method for automatically adjusting the parameters is urgently needed.

Method used

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  • Vibrating table off-line three-parameter control automatic parameter adjusting method
  • Vibrating table off-line three-parameter control automatic parameter adjusting method
  • Vibrating table off-line three-parameter control automatic parameter adjusting method

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Embodiment 1

[0045] like figure 1 As shown, the automatic parameter adjustment method for off-line three-parameter control of a shaking table provided by the present invention includes two aspects: providing a shaking table loading device and an automatic parameter adjustment algorithm.

[0046] In a first aspect, the present invention provides a vibrating table loading device, which is composed of a controller, an actuator, a vibrating table, a displacement sensor, and a differential pressure sensor. The controller of the shaking table supports the writing of control strategies and reserves a modifiable control parameter interface; the controller can also receive the signals measured by the sensor; the control can send control commands to the actuators. For the purpose of this patent, the control commands are The valve opening on the actuator; the controller can receive the displacement command and control parameters of the upper computer, and can send the collected data to the upper comput...

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Abstract

The invention discloses a vibration table off-line three-parameter control automatic parameter adjusting method, which comprises the following steps: building a vibration table, and establishing a three-parameter control strategy of a vibration table loading device; obtaining a target displacement spectrum, presetting three-parameter control parameters according to a three-parameter control strategy, and carrying out a parameter adjustment test on the vibration table loading device to obtain test data; unknown links of the test data are identified, and frequency responses of key links are obtained; judging whether the control effect of the frequency response meets the requirement or not, and if so, finishing the automatic parameter adjustment of the three-parameter control of the vibration table; and if not, based on the vibration table displacement control frequency domain index, solving the feed-forward coefficient through an optimization algorithm, and continuing to carry out the parameter adjustment test until the control effect of the frequency response meets the requirement. According to the invention, key parameters of three-parameter control are rapidly set by using an automatic parameter adjustment method, and the parameter adjustment time is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of vibration table control strategies, and in particular relates to an automatic parameter adjustment method for off-line three-parameter control of a vibration table. Background technique [0002] At present, the three-parameter control strategy including displacement, velocity and acceleration is widely used in the shaking table. Compared with the traditional PID control strategy, this three-parameter control strategy can effectively widen the bandwidth of the system and enhance the stability of the system. , which improves the frequency response of the system. However, when the target waveform and the specimen change, the control parameters of the three parameters need to be re-tuned. It takes a lot of time and energy to manually adjust the parameters, and a method for automatic parameter adjustment is urgently needed. SUMMARY OF THE INVENTION [0003] In order to achieve the above purpose, the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 田金任建新王展陈明华
Owner BBK TEST SYST CO LTD
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