underwater explosion
Study on Interaction and Rock Breaking Capacity in Underwater Explosion
Currently, the domestic and application of the land blasting is mature and perfect. Comparing to the land blasting, the research and application of the underwater blasting is lagged. Choosing double detonator as explosive charges to research the interaction of underwater explosion in this paper. In addition, based on the works of Sun Yueguang and other [...]
Study on Interaction and Rock Breaking Capacity in Underwater Explosion
Currently, the domestic and application of the land blasting is mature and perfect. Comparing to the land blasting, the research and application of the underwater blasting is lagged. Choosing double detonator as explosive charges to research the interaction of underwater explosion in this paper. In addition, based on the works of Sun Yueguang and other [...]
Study on Dynamic Response of Ship Structure under Underwater Explosive Impact Loading
Study on response of ship structure under underwater explosion Shock Wave. Research on the issues by theoretical analysis and numerical computation. The main researches and conclusions in the paper are as follows:(1) Introduce the formation and phenomenon of underwater explosion shock wave. One-dimensional and two-dimensional models of blast wave were investigated. Study on the basic [...]
Elastomer-coted Steel Plate Underwater Explosion Impact Response of Characteristic
During the implementation of combat missions, naval vessels are possible to be attacked by weapons from above or under water. To enhance the survival ability of vessels under such attacks, it is of primary importance to design the modern vessel with high-quality of anti-shock and protection capability. Many models of designs have been proposed. It [...]
The Numerical Simulate of Dynamic Responses of Marine Structures Subjected to Underwater Explosion Loading
The vitality of ships is one of the important performance indicators of the ship. The destructive power of underwater explosions on ships and other underwater structures pose a serious threat to them. As the varieties of characteristics about the underwater explosion, the study of it has unique appeal. People use various methods to study it. [...]
Numerical Research on Wind Load Characteristic Regularity of Ship Closed Composite Mast
Based on the high requirement of naval mast stealth, meta-synthetic mast is always made by composite materials with good electromagnetic wave permeability. For the special mechanical characteristics which Composite has, if the naval standard which based on the steel cylinder mast is remained used as the design load in the mast structure design, it’s probably [...]
Research on Assessment Method for Overall Damage of Warship Subjected to Underwater Explosion
The shock resistance of warship structure, which is related to the vitality of battling warship, has being paid much attention by Naval in the world. Actual combat and prototype explosion testing indicated that the explosion bubble load can cause the one-time damage of warship with the hull ruptured. Almost all the countries’standards and assess methods [...]
Research on the Impulsive Load of Underwater Explosion Using Smoothed Particle Hydrodynamics
As the background of near-field underwater explosions of warships, near-field and near-boundary underwater explosions are studied in this paper. The two problems involve some special features, such as large deformations, moving material interfaces, interaction between shock wave and the deformable boundary, free surfaces, etc. Mesh distortion will occur when the conventional grid-based methods are used [...]
Fractal Characteristic of Warship Impulsive Environment
The impulsive environmental is an important indicator of the vitality of warship, and it also reflects the anti-shock capability of warship. To accurately calculate and analyze the impulsive environment of warship, which is under the attack of underwater explosion, is the precondition to evaluate the warship’s vitality. However, the structure response of the warship under [...]
Research on Transmission Property of Shock Wave Test Underwater Explosion
The damage of structures underwater explosion mainly represents for the effects of shock wave and bubble impulse. Generally speaking, bubble pulse is usually an additional damaging effect, while shock wave plays a decisive role. The propagation law and dynamic effect of shock wave underwater explosion is an important question concerned in hydraulic and hydro-power engineeri,diploma [...]