Study On Adaptability Of Amphibious Gun Travel And Shooting On Water

Amphibious warfare is beach landing, claimed the island and other indispensable a method of combat for our army,amphibious gun become an important equipment of our army to water fight.For amphibious gun,achieved fast floating crossing, safe and reliable water shooting in water of battle,it is a key factor in the success of amphibious warfare.This paper studies the problem of reducing the resistance of amphibious gun when running on water,and analysis on dynamics of water shooting.To achieve an amphibious gun safe and reliable fast floating on the water crossing and shooting, with important theoretical and practical significance.Based on the above point of view, the content of this paper was divided into three parts:flow field analysis of the Water-wing amphibious gun,analysis on dynamics of water shooting of the Water-wing amphibious gun,and structure design of the water-wing freely retractable.(1) In this paper,on the basis of traditional amphibious gun shape, at both sides of the body increase a pair of freedom retractable plate hydrofoil,can be generated by a flat plate hydrofoil lift the body more support out of the water,in order to reduce the body shape resistance and increase the amphibious gun water speed.Establish three-dimensional solid model and flow field simulation, focusing on analysis of the hydrofoil amphibious gun traveling in the water lift / drag, analysis results show that increased after hydrofoil amphibious gun increased lift, water resistance is increased, when reaches a certain speed,the body is more out of the water,resistance began to decrease, and the lift to drag ratio began to increase.(2) In order to analyze the impact of increase hydrofoil after shooting in the water on the movement rule of the car,using the dynamic simulation software ADAMS, to the vehicle as the research object, with different firing angle of vertical and horizontal water shootingdynamics numerical simulation. Simulation results show that under the same shooting conditions, increasing the hydrofoil of amphibious gun shooting after,the vehicle body movement of the water changes to be smaller than those without hydrofoils.After an increase of hydrofoils for water shooting will be more stable and more reliable.(3) Based on the above two aspects of research,the effect of hydrofoils only in amphibious gun running and shooting of water.Therefore,the hydrofoils should have freely retractable and ensure the hydrofoils reliable deployment when running and shooting of water,and firmly closed when shooting or traveling on land, programme design of the retractable water wingsTo sum up, the research of this paper has substantial practical value for the amphibious warfare.