Multi-dimensional waveform analog correction method and control device

Abstract

The invention discloses a multi-dimensional waveform analog correction method and a control device. The control device comprises a computer, an analog output card, a data acquisition card and an acceleration sensor, wherein the analog signal output end of the computer is connected with the analog signal input end of a controlled vibration table through the analog output card, and the controlled vibration table is connected with the data signal input end of the computer through the data acquisition card after an acceleration signal of the controlled vibration table is sent to the acceleration sensor. The control device is high in control accuracy, has one-to-six-dimensional waveform analog capacity and is suitable for multi-dimensional waveform analog control. In addition, channel numbers can be flexibly adjusted according to different-dimensionality waveform analog demands. By adopting the correction method, test procedures are optimized, and the satisfied test effect can be obtained only through iteration for 2-3 times (one-time half magnitude order, and full magnitude order for 1-2 times). The control device further has the advantages of being simple in system, provided with few modules, easy to install, convenient to maintain and the like and is very suitable for seismic wave analog, road analog and other waveform analog application fields.

Description

technical field [0001] The invention relates to a general waveform simulation control device with hydraulic or electric vibration table and excitation system as the control objects, especially a multi-dimensional waveform suitable for multi-axial earthquake simulation vibration table and two-axis or four-axis road simulation test bench An analog correction method and a control device belong to the technical field of automatic control. Background technique [0002] Waveform simulation is widely used in various fields such as environmental vibration, shock test, earthquake simulation, road transportation simulation, airborne environment simulation, etc., especially in earthquake simulation, shock response spectrum in environmental vibration, classic shock, road transportation simulation and other tests. Its core control technology is waveform simulation control. With the development of vibration simulation test technology, one-dimensional vibration simulation test can no long...

AI Technical Summary

Problems solved by technology

However, because its algorithm is not open to the outside world and its functions are fixed, it makes users feel difficult to use in many applications (such as too strict system background restrictions, too large low-frequency displacement in pre-test, unsatisfactory control accuracy, prone to over-testing phenomenon, error Calculation and analysis functions are single, etc.)

In the domestic aspect, there has been no mature product launch in the research and development of multi-dimensional waveform simulation control devices

[0004] In addition, after searching the patent literature, there is no other published relevant literature on the multi-dimensional waveform simulation control device, let alone the use of related products in applications

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