ID 原文 译文
39786 通过系统仿真实验结果分析,系统分布式仿真性能满足多用户并发需求,可视化仿真效果良好,能为破片战斗部实弹设计与实验提供威力评估依据。 The simulation experiment results show that the distributed simulation of the system can satisfy the concurrent needs of multi-users, and the visual simulation effect is good, which can provide the basis for the power evaluation for the design and experiment of fragment warhead.
39787 图像自寻的火箭弹侵彻航母效果是其作战使用的重要依据。 The effect of image homing rocket projectile penetrating aircraft carrier is the important basis for its operation.
39788 根据弹丸与航母特性构建其几何等效模型与仿真模型,并运用LS-DYNA进行数值仿真; According to the characteristics of projectile and aircraft carrier, the geometric equivalent model and simulation model are established, and the penetration process is simulated by LS-DYNA.
39789 通过对仿真结果的破坏形貌与贯穿极限速度进行验证,表明模型符合实际; Simulation results are verified by the failure form and penetration limit velocity, and show the correctness of the model.
39790 利用所建模型进行了不同条件下的侵彻仿真,并根据弹丸的加速度极值分析了其整体受力过载情况,通过对采集的部分关键点进行分析,获取了弹丸局部应力应变情况及其对飞行甲板和舰岛防护板的破坏效果。 Using the established models, the penetration processes are simulated under the different conditions. The overall force on the projectile is analyzed according to the extreme acceleration value of projectile. Based on the analysis of some collected key points, the local stress and strain of projectile and the damage effect of the projectile on the flight deck and the ship island fender are obtained.
39791 结果表明,火箭弹对飞行甲板的侵彻性能较好,但对舰岛侵彻效果有限。 Simulation results show that the rocket has good penetration performance to flight deck, but limited penetration effect to ship island.
39792 基于模态直接切换的飞行高度控制方法,在输入控制指令后,存在控制量输出震荡,甚至发散的问题。 Based on the fly height control method of modal direct switching, after the input of the control command, the control output may be oscillated or even diverged.
39793 幂函数符合飞行高度指令变化规律,以此为原型函数,推导给定高度,当前高度和垂直速度之间的关系,将这一变换关系作为垂直速度控制回路的输入指令, The power function conforms to the variation law of the flight altitude command, and is used as the prototype function to derive the relationship between the given height, the current height and the vertical velocity.
39794 设计了平稳控制系统,该系统不需要进行控制模态切换,就可以实现飞行高度保持,以及飞行高度的改变。 Using this transformation relationship as the input command of the vertical velocity control loop, a smooth control system is designed. The system does not require control modal switching and can achieve the flight altitude maintenance andflight altitude change.
39795 通过A320飞行仿真平台对设计的平稳控制系统进行性能分析,结果表明该系统可以实现高度的平稳控制,且稳态误差得到了很好抑制。 The performance analysis of the designed smooth control system is carried out by the A320 flight simulation platform. The results show that the system can achieve a high degree of smooth control and the steady-state error is well suppressed.