Measurement and control system used for underwater explosion model test of centrifuge

Abstract

The invention provides a measurement and control system used for an underwater explosion model test of a centrifuge. The measurement and control system comprises an acquisition subsystem, a control detonation subsystem, a conditioning device subsystem and a test element subsystem. The acquisition subsystem comprises a host computer, a lower computer, a shooting system display and a photoelectric sliding ring. The control detonation subsystem comprises a control box and a detonation element. The control box comprises a second fiber transceiver and a control circuit. The denotation element comprises a detonator and explosives. A solid-state relay is arranged on the control circuit. The conditioning device subsystem comprises a strain amplifier, a strain bridge box, a sensor signal conditioner and a high speed shooting host. The test element subsystem comprises a strain sheet, a sensor and a high speed camera. The strain sheet and the sensor are arranged on a test model. According to the invention, simultaneous multi-parameter dynamic test is achieved on the centrifuge; a problem of failure to meet underground explosion similarity rate of a traditional model test is solved; the measurement and control system can be used for a replacement method for a prototype test; and test cost and test time are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of geotechnical machinery model tests, in particular to a measurement and control system for underwater explosion model tests of centrifuges. Background technique [0002] The basic principle of the geotechnical centrifugal model test is to place the model made of raw materials in a certain scale in the centrifugal force field generated by the centrifuge, and increase the self-weight and body force of the model to make the stress state of the model reach the same stress state as the prototype. And showed the deformation and destruction process similar to the prototype. Through the model test, the size of the model can be reduced, the time of the model test can be shortened, and the actual engineering problems can be studied under the condition of a certain centrifugal simulation similar scale. At present, using a centrifuge to conduct a centrifugal simulation test has become one of the effective means to st...

AI Technical Summary

Problems solved by technology

For the centrifugal model test, the entire measurement and control system will be installed on the centrifuge and follow the high-speed rotation of the test model, which poses a challenge to the measurement and control system of the conventional ground underwater explosion test

Images