| 1. | Study on generalized predictive control for type rudder pitching stabilization 型舵船舶减纵摇广义预测控制研究 |
| 2. | The strip method often used in engineering will be used to predict the pitch ^ heave and acceleration of ship 本文利用工程中常用的切片法来预报船的纵摇、升沉、以及船的某些部位的垂向加速度。 |
| 3. | Because of the change of ship attitude ( rolling angle r , pitch angle p and course angle h ) led by ship rocked interference and windage , the los stabilization will be influenced obviously 由于舰船的艏摇、纵摇、横摇等引起舰船姿态的变化以及风阻力矩的作用,对跟踪系统的视轴稳定性产生明显影响。 |
| 4. | The self - tuning fuzzy control algorithm including a back - propagation - based fuzzy controller and the gradient descent method is applied to reduce the pitch motion of the swath ship with control stabilizing fins 控制模式为一自调模糊控制,包括应用一类神经倒传递观念的模糊控制器及梯度下降法来减少纵摇运动。 |
| 5. | The theoretical calculation and the model experimental result both have confirmed that the built - up stabilizing appendage is able to reduce pitching n heaving motions and especially bow acceleration considerably 理论计算和模型试验结果均证明了组合减摇附体能够减小船的纵摇运动、升沉运动,尤其是大幅度降低首部加速度。 |
| 6. | The strip method was applied to the motion prediction of the monohull . the time range solutions of heave and pitch were obtained in the condition of head sea to provide the primary data on panoramic simulation 本文利用切片法对0371g艇加装纵向组合减摇附体前后的运动进行预报,取得了迎浪状态下升沉和纵摇的时历解,为视景仿真提供原始数据。 |
| 7. | Chapter 2 exposits the principle of the airborne isar imaging of ship targets in detail using the concept of image projection plan and effective rotating vector . and some imaging results under every ship sway ( roll , pitch and yaw ) are presented 论文第二章借助成像投影面和有效旋转矢量的概念,详细阐述了机载isar对舰船成像的机理,并分别对舰船横摇、纵摇、偏航运动成像进行了仿真。 |
| 8. | In the end the predicting model is used in watercraft motion modeling and predicting , and the auhor analyzes the result of simulating . the result indicates that this ap $ j $ ifgx9 @ 1 % & itx means is reasonable and feasible and gains the satsfactory pmpose 最后将此模型应用于舰船纵摇运动的极短期预报,并从统计理论的角度对仿真结果进行了分析,分析结果表明该方法是合理可行的,确实提高了预报精度,加长了预报时间。 |
| 9. | When sailing in waves , a part of ship bow will depart from water surface because of the significant heave and pitch ( mostly happened at bow in head seas , and may happened at stern in follow sea ) . when ship enter into water once again , violent impact with waves will happen , which is called slamming 当船舶在波浪中航行时,由于剧烈的垂荡和纵摇,船底的一部分会露出水面(主要是在迎浪时发生在船体前部,但在低速随浪时也可能发生在船体后部) 。 |
| 10. | The airborne isar imaging of ship target depends on the ship ’ s rotation relative to the radar line of sight ( rlos ) . this rotation has two sources : one originates from the relative movement between the radar and the ship . the other comes from the ship sway ( roll , pitch and yaw ) 机载isar对舰船成像依靠舰船与雷达视线( rlos )之间的相对转动,它由飞机与舰船航行引起的相对运动和海浪作用下舰船自身摇摆(横摇、纵摇、偏航)产生的转动组成。 |