Study on underwater explosion shock characteristic of rudder based on ale method

2011 ◽  
Author(s):  
Liang Lihua ◽  
Xun Panpan ◽  
Wan Chen
Keyword(s):  
Underwater Explosion ◽  
Ale Method ◽  
Shock Characteristic

An adaptive ALE method for underwater explosion simulations including cavitation

Shock Waves ◽  
2010 ◽  
Vol 20 (5) ◽  
pp. 425-439 ◽  
Author(s):  
A. R. Pishevar ◽  
R. Amirifar
Keyword(s):  
Underwater Explosion ◽  
Ale Method

scholarly journals Simulation of Underwater Explosion with Cavitation using ALE Method

2016 ◽  
Vol 34 (2) ◽  
pp. 73-85
Author(s):  
A. Jafarian ◽  
احمدرضا پیشه‌ور ◽  
◽  
Keyword(s):  
Underwater Explosion ◽  
Ale Method

A Study on the Characteristics of Underwater Explosion for the Development of a Non-Explosive Test System

2020 ◽  
Vol 57 (6) ◽  
pp. 322-330
Author(s):  
Hansol Lee ◽  
Kyudong Park ◽  
Yangsub Na ◽  
Seunggyu Lee ◽  
Kyunghoon Pack ◽  
...  
Keyword(s):  
Underwater Explosion ◽  
Test System

An engineering application of Prosperetti and Lezzi equation to solve underwater explosion bubbles

2021 ◽  
Vol 33 (1) ◽  
pp. 017118
Author(s):  
Jingxiao Zhang ◽  
Shushan Wang ◽  
Xiyu Jia ◽  
Yuan Gao ◽  
Feng Ma
Keyword(s):  
Engineering Application ◽  
Underwater Explosion

The influence of strain rate on the cavitation time and deformation of an underwater impulsively rectangular plate

2021 ◽  
pp. 030932472110208
Author(s):  
Habib Ramezannejad Azarboni ◽  
Abolfazl Darvizeh
Keyword(s):  
Constitutive Equation ◽  
Strain Rate ◽  
Rectangular Plate ◽  
Total Pressure ◽  
Elastoplastic Deformation ◽  
Underwater Explosion ◽  
Strain Rate Effect ◽  
Linear Solution ◽  
Explosion Load ◽  
Explosive Forming

The effect of strain rate on the cavitation time and elastoplastic deformation of steel rectangular plate subjected to underwater explosion load is analytically and numerically investigated in this study. At the cavitation time, the total pressure of the explosion is eliminated so that the cavitation time plays a significant role in the elastoplastic deformation of underwater explosive forming of plate. Taking into account the strain rate effect, the Cowper-Symond constitutive equation of mild steel is employed. Exact linear solution using the Eigen function and numerical linear and nonlinear solution using finite difference method (FDM) of dynamic response of impulsively plate is obtained. Implementing the linear work hardening, the stress, strain, displacement, and velocity in any steps of loading are calculated. The time of cavitation can be recognized in elastic or plastic regimes by applying the Cowper-Symond constitutive equation. Considering the strain rate influence, the effects of charge mass and standoff are investigated to occur of cavitation and time dependent deflection and velocity of a rectangular plate.

scholarly journals Shock Mechanism Analysis and Simulation of High-Power Hydraulic Shock Wave Simulator

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Xiaoqiu Xu ◽  
Han Tao ◽  
Junwei Han
Keyword(s):  
Shock Wave ◽  
High Power ◽  
Structure Optimization ◽  
Simulation Method ◽  
Mechanism Analysis ◽  
Hydraulic Shock ◽  
Characteristic Parameters ◽  
Software Simulation ◽  
Shock Mechanism ◽  
Shock Characteristic

The simulation of regular shock wave (e.g., half-sine) can be achieved by the traditional rubber shock simulator, but the practical high-power shock wave characterized by steep prepeak and gentle postpeak is hard to be realized by the same. To tackle this disadvantage, a novel high-power hydraulic shock wave simulator based on the live firing muzzle shock principle was proposed in the current work. The influence of the typical shock characteristic parameters on the shock force wave was investigated via both theoretical deduction and software simulation. According to the obtained data compared with the results, in fact, it can be concluded that the developed hydraulic shock wave simulator can be applied to simulate the real condition of the shocking system. Further, the similarity evaluation of shock wave simulation was achieved based on the curvature distance, and the results stated that the simulation method was reasonable and the structural optimization based on software simulation is also beneficial to the increase of efficiency. Finally, the combination of theoretical analysis and simulation for the development of artillery recoil tester is a comprehensive approach in the design and structure optimization of the recoil system.

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