CAJ | 학술논문

　　首先建立了主动控制起落架系统的非线性动力学模型。然后根据最优控制理论，在 Matlab的环境下，应用人工鱼群算法设计了多目标最优的 PID 控制器。最后应用 Simulink 控制系统仿真软件对主、被动起落架在地面信号为弹伤跑道信号的条件下进行了性能仿真。对仿真结果进行了分析比较，得出的结论是利用最优控制理论设计的多目标最优的 PID 控制器的主动控制起落架能显著降低飞机的振动冲击载荷，提高飞机机体和起落架的疲劳寿命，降低跑道不平度对飞机机体和起落架的冲击载荷和振动响应；同时提高飞机的滑行品质和乘客的舒适性。
　　수선건립료주동공제기락가계통적비선성동역학모형。연후근거최우공제이론，재 Matlab적배경하，응용인공어군산법설계료다목표최우적 PID 공제기。최후응용 Simulink 공제계통방진연건대주、피동기락가재지면신호위탄상포도신호적조건하진행료성능방진。대방진결과진행료분석비교，득출적결론시이용최우공제이론설계적다목표최우적 PID 공제기적주동공제기락가능현저강저비궤적진동충격재하，제고비궤궤체화기락가적피로수명，강저포도불평도대비궤궤체화기락가적충격재하화진동향응；동시제고비궤적활행품질화승객적서괄성。
First of all, the nonlinear mechanical model of the active -control landing gear system is developed . Then, the PID controller of optimization is designed according to the optimal control theory in the environment of Matlab with Artificial Fish-Swarm Algorithm.Last, the performance of active and passive control landing gears are simulated under the condition that signal of runway is the signal of the repaired airplane runway after being bombed in the environment of Simulink.Through the analysis and comparison of the simulation results , the conclusion is that, the optimal PID controller, which is designed on the basis of the optimal control theory , can reduce the shock load dramatically, prolong the fatigue life of the fuselage and landing gear system , and improve the taxiing perform-ance and ride comfort simultaneously.