Hinged rigid body motion control device applied to underwater large-pulse-width explosion experiment

Abstract

The invention belongs to the technical field of model experiment target cabin design experiment testing, and particularly relates to a hinged rigid body motion control device applied to an underwaterlarge-pulse-width explosion experiment. A traditional buoy is replaced with the circular water tank, the floating height is convenient to adjust, the up-down swing amplitude problem of the traditionalbuoy is effectively reduced, the rigid body motion displacement of the whole device is controlled, and the influence of impact waves on the device can be reduced. The circular water tank and the annular water tank are connected through the triangular frame and the one-way hinge, and the distance between the circular water tank and the annular water tank can be conveniently adjusted; the steel wire ropes are made of flexible materials, and the impact influence of instant explosion on the annular water tank is reduced through the flexible characteristics. The position relation between the explosive and the ship body is convenient to adjust, compared with a traditional buoyancy tank, the annular water tank enables shock waves to penetrate through the middle, and the influence of the shock waves on experiments is reduced; the plate frame provides balance weight, and huge shaking caused by explosion impact is reduced.

Description

technical field [0001] The invention belongs to the technical field of model experiment target cabin design experiment testing, and in particular relates to a hinged rigid body motion control device applied to underwater explosion experiments with large pulse width. Background technique [0002] Ships will inevitably be attacked by various weapons during their service, and the impact resistance of the hull and its mechanical and electronic equipment is an important consideration in ship design. In particular, the problem of impact damage caused by underwater explosion loads of ships involves various nonlinear issues such as materials, motion and geometry, as well as many uncertain factors, and has always been the focus of ship vitality research. In order to accurately simulate the damage characteristics of ships when they are subjected to underwater explosion loads, many previous studies have used scaled model experimental devices to study the mechanism of impact damage to s...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a simulated damage characteristic for studying the large-pulse-width shock wave of an underwater explosion to the grillage structure, aiming at eliminating the rigid body displacement of the tested grillage structure, and solving the problem of real-scale damage characteristics when the ship is subjected to an underwater explosion. A hinged rigid body motion control device applied to underwater large pulse width explosion experiments

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