Analog simulation system for multi-parameter earthquake monitoring
A simulation, multi-parameter technology, applied in general control systems, control/regulation systems, simulators, etc., can solve problems such as failure to meet medium and high frequency test response requirements, failure to meet test requirements, single control parameter, etc., and achieve compact structure , easy implementation, and high control precision
Pending Publication Date: 2019-02-22
阿斯科纳科技(深圳)有限公司
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Problems solved by technology
Among them, there are generally two types of vibration devices. One is the electromagnetic exciter using "excitation coil", which has small displacement and small output, and cannot meet the test requirements of low-frequency and large-displacement structural loading. It can only be used as a small vibration table.
The other is the electric cylinder using "ball screw", which cannot meet the test response requirements of medium and high frequency, and has the hidden danger of screw wear
[0004] Moreover, the existing simulation system uses a single control parameter, which cannot obtain a flat response curve in a wide frequency range.
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[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] see figure 1 , the present invention provides a multi-parameter earthquake monitoring simulation system, comprising: a platform, a drive control unit, a signal feedback unit connected to the drive control unit, a signal processing unit connected to the signal feedback unit, and the The signal feedback unit and the PID adjustment unit connected to the signal processing unit.
[0029] The drive control unit includes a servo motor module and a servo driver for driving and controlling the servo motor module. The servo driver is used to control the servo motor module to generate corresponding vibrations according to input signals.
[0030] The signal feedback unit includes a position sensor, a speed sensor, an acceleration sensor, and a torque sensor, which are used to monitor the actual feedback values of various indicators during the o...
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The invention discloses an analog simulation system for multi-parameter earthquake monitoring. The analog simulation system comprises a platform, a driving control unit, a signal feedback unit connected with the driving control unit, a signal processing unit connected with the signal feedback unit, and a PID adjustment unit connected with the signal feedback unit and the signal processing unit. The analog simulation system adopts a motor module for dynamic loading, which can directly drive without a transmission mechanism, has the advantages of compact structure and precise positioning, and greatly widens the frequency response range; and the analog simulation system adopts multi-parameter control, can simulate the dynamic function of a vibration platform effectively by adopting a multi-parameter torque control algorithm, and has many advantages of no need of setting a reaction wall, low stroke requirement, high control precision, easy implementation and the like.
Description
technical field [0001] The invention relates to the field of earthquake simulation, in particular to a simulation system for monitoring earthquakes with multiple parameters. Background technique [0002] Earthquake is one of the most serious natural disasters to human beings. At present, the more practical method to deal with earthquakes is to enhance the seismic performance of structural parts. At present, the main methods of research on the seismic performance of structural parts include pseudo-static test, pseudo-dynamic test and earthquake simulation. Shaking table test. Pseudo-static test is widely used due to its simple equipment and the ability to obtain various information of the specimen to the maximum. Its main purpose is to obtain information such as stiffness, bearing capacity, deformation, and energy consumption of structural parts. It cannot reflect the dynamic response of structural components under real earthquake action. The pseudo-dynamic test obtains its...
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IPC IPC(8): G05B17/02G09B25/00
CPCG05B17/02G09B25/00
Inventor 李剑杰刘雷
Owner 阿斯科纳科技(深圳)有限公司