关键词: 机械学 , 自行榴弹炮 , 弹药自动装填系统 , 弹仓 , 不确定性 , 保性能控制

Abstract: The automatic chain shell magazine is primary subassembly of an automatic ammunition loading system of a certain big-caliber self-propelled howitzer. Due to the number change of shells in the shell magazine during firing, the positioning control problem of the shell magazine is a kind, of con?trol one of uncertain systems with parameter uncertainty. "In order to realize accurate control of the shell position, one kind of optimal guaranteed cost control algorithm based on the linear matrix in?equality (LMI) theory was put forward. First, rigid body dynamic equations of the shell magazine was built，and thoes for four special load situations were linearized. Then, according to the basic theory of the guaranteed cost control algorithm, the linearized equations of the shell magazine were expressed as the standard forms of linear uncertain systems. I he optimal guarantted cost control law for position control of the shell magazine was obtained by the LMI toolbox of MATLAB package, by which the controlled dynamic simulation of the shell magazine was carried out. The simulated results indicate that the control algorithm has high control precision.

Key words: mechanics , self-propelled howitzer , automatic ammunition loading system , shell maga?zine , uncertainty , guarantted cost control