Multichannel control device used for hydraulic vibration test system

A test system and control device technology, which is applied in the direction of electric fluid pressure control, etc., can solve the problems such as the description of the multi-dimensional hydraulic vibration table control device, and achieve the effects of eliminating resonance peaks, widening the system frequency band, and improving the automation level

Pending Publication Date: 2017-02-22
TIANJIN AEROSPACE RELIA TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Most of the actual physical vibration environment is multi-dimensional, and most of them can be described by six degrees of freedom. In order to simulate the real vibration environment, more and more multi-dimensional hydraulic vibration tables have been deployed. At present, there is no control device for multi-dimensional hydraulic vibration tables. Described patent literature

Method used

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  • Multichannel control device used for hydraulic vibration test system
  • Multichannel control device used for hydraulic vibration test system
  • Multichannel control device used for hydraulic vibration test system

Examples

Experimental program
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specific Embodiment 1

[0046] Specific examples are as image 3 As shown, the device is used in a six-degree-of-freedom hydraulic test system. The test system is scattered geographically, and the equipment is distributed in the measurement and control room, the oil source room and the experiment hall. Among them, the upper computer 1, the lower computer 2 and the vibration controller 3 with multi-channel control devices in the measurement and control room, where the test operators control the entire system; the oil source room has an oil source 12 and its electric control cabinet 11, which are used for hydraulic actuators. Provide power; the test hall has a pipeline 8 and its switch valve 7, hydraulic actuator 4, table body 6 and its connection device 5 with each hydraulic actuator 4, such as hinge connection device, signal cable 9 and twisted pair Cable 10 and other accessories, six hydraulic actuators 4 form a six-degree-of-freedom hydraulic vibration table in a 321 structure. The six signal con...

specific Embodiment 2

[0047] Specific embodiment two such as Figure 5 As shown, the device is used in a single-channel hydraulic test system. The test system includes an upper computer 1 and a lower computer 2 of a multi-channel control device. Similarly, the oil source 12 and its electric control cabinet 11 are located between the oil sources; the test hall has a pipeline 8 and its switch valve 7, a hydraulic actuator 4, a table body 6 and a connecting device 5 between it and the hydraulic actuator 4, Such as hydraulic ball joint connection device, acceleration sensor 13, signal cable 9, twisted pair cable 10 and other accessories, a hydraulic actuator 4 constitutes a single-channel hydraulic vibration table. A signal conditioning board 23 on the lower computer 2 of the multi-channel control device is electrically connected to the hydraulic actuator 4 through a signal cable, specifically as Figure 6 As shown, the output drive circuit 235 of the signal conditioning board 23 outputs ±10mA curren...

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Abstract

The invention discloses a multichannel control device used for a hydraulic vibration test system. The multichannel control device comprises an upper computer and a lower computer which is electrically connected with the upper computer. The lower computer comprises a power board card, a processor board card and a signal conditioning board card. The power board card provides a DC power supply. The processor board card is used for completing signal acquisition, processing and control computation. The signal conditioning board card is used for signal conditioning. The power board card comprises a power supply output interface. The power board car is connected with the processor board card through the power supply output interface. The processor board card comprises a network port circuit, multiple hybrid interfaces and a digital interface. The processor board card receives instructions and parameters issued by the upper computer through the network port circuit and uploads the data to the upper computer and is electrically connected with the a signal conditioning board card through the hybrid interfaces. The device is simple and feasible in operation, stable and reliable and high in universality and can be widely applied to various hydraulic vibration test systems.

Description

technical field [0001] The invention is used in the application field of single-dimensional or multi-dimensional hydraulic vibration test systems, and specifically relates to a multi-channel control device, which can not only realize the servo control of a single or multiple hydraulic actuators, but also realize the remote control of other equipment such as oil sources. control. Background technique [0002] With its advantages of large thrust, large displacement, fast response, light weight and small size at low and intermediate frequencies, the hydraulic vibration table makes up for many shortcomings of the electric vibration table, and is widely used in aerospace, vehicles, earthquake simulation and other fields. It occupies an important position in the vibration test system. [0003] Internationally, in the 1980s, MTS established multiple sets of hydraulic vibration tables based on electro-hydraulic servo valves, with a working frequency of 200 Hz. However, the influenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D16/20
Inventor 王家乐张静侯京锋杨志鹏关越邓哲郝岩研
Owner TIANJIN AEROSPACE RELIA TECH
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