Pressure container parameter design method for checking performance of underwater blasting equipment

Abstract

The invention discloses a pressure container parameter design method for checking the performance of underwater blasting equipment. The method comprises the steps that an explosion testing device is established, under the conditions of different explosive loads Wi, explosive loading sinking depths and air pressure equivalent water column heights, serial explosion tests are conducted, an impact wave peak value Pmi and a bubble pulsation cycle Ti of an underwater explosion of the ith test are measured and obtained, fitting operation is conducted with theoretical formulas, and an equivalent explosive loading coefficient n is obtained; according to a theoretical value of peak pressure, in combination with a structural strength calculation formula of a container, the thicknesses of the side wall and tank bottom of the pressure container are calculated, and accurate parameters are provided for development of the pressure container.

Description

technical field [0001] The invention belongs to the field of explosion vessel design and relates to a design method of an anti-explosion pressure vessel used for simulating the underwater explosion test of a centrifuge. Background technique [0002] Once large-scale dams are damaged by explosions during wartime, multiple water conservancy projects will collapse, which will cause huge personal injuries and economic losses. Therefore, the research on anti-blast safety of dam engineering has very important theoretical guiding significance for minimizing losses and evaluating dam safety. Due to limited funds and sites, it is difficult to obtain the damage mechanism of large-scale dams under the action of blast loads through prototype blast tests; it is also difficult to truly reveal the mechanical behavior and failure process of blast prototypes by traditional structural model tests. The geotechnical centrifuge increases the gravity of the model through high-speed rotation, so ...

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Problems solved by technology

Due to limited funds and sites, it is difficult to obtain the damage mechanism of large-scale dams under the action of blast loads through prototype blast tests; it is also difficult to truly reveal the mechanical behavior and failure process of blast prototypes by traditional structural model tests

The geotechnical centrifuge increases the gravity of the model through high-speed rotation, so that the model medium body produces a self-weight stress similar to that of the prototype. The deformation and failure mechanism of the model are similar to the prototype, so that complex geotechnical engineering and dynamic problems can be simulated. One of the commonly used methods in mechanics, but its expensive cost and test costs have limited its large-scale promotion and use.

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