Launching Safety Analysis And Optimization Of Tracked Combat Vehicle In Marching

In recent years,as an important army weapon system,the tracked combat vehicle has always been highly valued by universities and military forces in various countries.Since modern warfare is information-based local warfare under high-tech conditions,its destructive,three-dimensional,multi-dimensional,fast and flexible characteristics put forward a high degree of protection ability,maneuverability and inter-travel strike capability of weapon systems.Claim.As an important evaluation index,the launching safety of the march can well reflect the protection and strike capabilities of the weapon system.Therefore,in order to study the dynamic response and firing safety of the tracked combat vehicle during firing,this paper applies a multi-rigid body system Dynamics and display finite element methods and theories,decoupling the firing process of tracked combat vehicles into two parts: driving dynamics and launching dynamics,and performing dynamic modeling and numerical simulation analysis on the two parts the study.First of all,based on the detailed CAD model of a tracked combat vehicle,its key components are appropriately simplified.The multi-body dynamics software ADAMS / ATV is used to build the combat vehicle driving dynamics model,and the corresponding inertial parameters are given to each component;based on the uneven road surface in China The grade classification standard uses MATLAB software to generate the power spectral density function of all levels of pavement,and imports it into the ADAMS software to construct a three-dimensional road model;at the same time,the three-dimensional modeling software Creo is used to establish the solid model of the launch system and is generated by the finite element preprocessing software,The finite element model of the launching system finally generates the launching dynamics model of the launching system.Secondly,based on the driving dynamics model of the combat vehicle constructed above,the driving dynamics simulation of the tracked combat vehicle is carried out under different vehicle speeds and different levels of pavement conditions to obtain the dynamic response of the combat vehicle under different working conditions,and the launch system The 6-degree-of-freedom displacements at the bottom center point are output as results,and they will then be used as boundary input conditions for launch dynamics simulation.Once again,the output of tracked combat vehicle dynamics simulation and the missile thrust curve are loaded onto the launch dynamics model for launch dynamics simulation.The launch dynamic response of the launch system at different vehicle speeds and different levels of pavement is studied respectively.Various launch attitude parameters of the missile and the launch safety probability of the combat vehicle launch system under different working conditions were analyzed according to the missile launch safety criteria.Finally,based on the tracked combat vehicle dynamics model,the vehicle suspension stiffness and damping are design variables,and the extreme values of the roll center acceleration and pitch angle velocity at the bottom of the vehicle launch system are the objective functions,based on the uniform Latin super Cube conducts test design,uses integrated optimization software and combines multi-body system dynamics methods to solve the driving dynamics simulation results under different working conditions,so as to establish a response surface model and verify its accuracy.Next,multi-objective optimization design is adopted for the parameters of the tracked combat vehicle suspension system,and the optimized combat vehicle model is simulated and verified.