Lightweight Traction Artillery Kinetic Analysis And Optimization Studies

Taking the key technologies of light towed howitzer as a study purpose and combining the study of domestic and overseas to light towed howitzer, the key technologies of light towed howitzer are summarized. The whole gun's soft coupling dynamics analysis, recoil system optimization design and the whole gun firing stability optimization are studied based on a new structure of howitzer which can improve the firing stability.The decrease of the whole gun weight directly affects the stability and security of firing is the main problem of light towed howitzer. According to that characteristic, the key technologies of light towed howitzer are put forward in this thesis, which are light structure overall technology, firing stability control technology and part structure weight reduction technology. Combing the new structure howitzer which can improve the firing stability, a soft coupling dynamics simulation model of whole gun is established considering the elastic of barrel and cradle. The simulated results show that this howitzer has a goodish firing stability and the elastic of barrel and cradle must be considered when analyzing the muzzle disturbance.Using the modern optimization technique, the following two researches of the recoil system optimization are progressed:optimize structural parameters of recoil brake with the structure's lightest quality for the target, optimize size parameters of throttling bar with obtaining ideal total resistance to recoil for the target. That provides a better way of optimization design the light towed howitzer's recoil system.The content of design variables, objective function and constraint conditions in whole gun dynamics optimization mode are summarized. And a model with firing stability and certain recoil long as objective function is established. The optimization results show that the sudden increase of total resistance to recoil is against the firing stability of the new structure howitzer. Using experimental design method, main factor of firing stability of the new structure howitzer is analyzed and the whole gun firing stability optimization model is established. The whole gun has a better firing stability after the optimization.