CAJ | 학술논문

逼真的舰载直升机着舰仿真应对着舰过程中机舰碰撞给出精确建模。着舰过程中直升机何时与舰船碰撞及碰撞后产生的力是建模难点。针对这一问题提出了一种着舰碰撞建模方法。该方法中起落架被简化为弹簧阻尼筒结构，机舰碰撞时的力与起落架压缩量、机舰相对速度有关。通过坐标转换，依据起落架在船体坐标系下坐标判断机舰是否碰撞，并且计算起落架压缩量大小。依据舰船速度在机体系下投影计算机舰相对速度。最后开发了直升机、舰船仿真模型对该方法做了验证。验证结果表明：该方法能够实时计算出直升机与舰船碰撞时直升机起落架所受力，直升机与舰船能够协调一致运动，可以满足机舰仿真需求。
핍진적함재직승궤착함방진응대착함과정중궤함팽당급출정학건모。착함과정중직승궤하시여함선팽당급팽당후산생적력시건모난점。침대저일문제제출료일충착함팽당건모방법。해방법중기락가피간화위탄황조니통결구，궤함팽당시적력여기락가압축량、궤함상대속도유관。통과좌표전환，의거기락가재선체좌표계하좌표판단궤함시부팽당，병차계산기락가압축량대소。의거함선속도재궤체계하투영계산궤함상대속도。최후개발료직승궤、함선방진모형대해방법주료험증。험증결과표명：해방법능구실시계산출직승궤여함선팽당시직승궤기락가소수력，직승궤여함선능구협조일치운동，가이만족궤함방진수구。
The accurate simulation of ship-board helicopter landing should model the collision between heli-copter and ship accurately.In the course of landing,when the helicopter collide with the ship and the generated force of collision is the difficulty of modeling.A method of collision modeling between helicopter and ship is pro-posed in order to solve the problem.The undercarriage is simplified as the spring-damper structure in the method. The force of collision is related with the compression of the undercarriage and the relative velocity between the helicopter and the ship.Collision and the compression of the undercarriage could be estimated according to the undercarriage coordinate in the ship body reference frame.The relative velocity between the helicopter and the ship could be calculated via the ship velocity transform in the helicopter body reference frame.In the end,the helicopter and ship simulation models are developed to validate the method.The results show that the method could compute the collision forces which is generated by the undercarriage,and the helicopter could move with the ship concertedly.It could fulfill the need of simulation of ship-board helicopter landing.