摆动喷管控制导弹回路成形自动驾驶仪设计

针对摆动喷管控制防空导弹存在的伺服气动弹性问题,利用鲁棒回路成形方法在导弹的纵向通道设计了自动驾驶仪。首先,建立了考虑一阶弹性振动影响的纵向小扰动线性化模型;然后考虑到控制系统设计中存在的导弹自身以及外界干扰等不确定因素的影响,采用回路成形的方法,根据系统性能指标的要求,选取了系统期望回路成形函数,构造了防空导弹纵向自动驾驶仪回路成形设计框架,给出了鲁棒回路成形控制增益K∞;最后,对其进行了数字仿真。仿真结果表明,所设计的系统具有良好的鲁棒稳定性和鲁棒性能。

Design of robust loop-shaping autopilot for missile with swing nozzle thrust vector control

A new design method of autopilot for the swing nozzle thrust control anti-air missile is presented in this paper.Firstly,the model of the missile which considered the aeroservoelastic is given.Then,the theory of robust loop-shaping is used for autopilot design for the missile with the model uncertainty and disturbance,the framework of the robust loop-shaping of the longitude autopilot is constructed.Finally,the simulation on the control system shows that the robust stability and performance is achieved.