| 1. | The ship rolled on a swell . 一个巨浪冲过,船身一阵摇晃。 |
| 2. | Our ship rolled and pitched on the heavy sea 我们的船在猛烈的海面上摇晃颠簸。 |
| 3. | Our ship rolled and pitched on the heavy sea 我们的船在波涛汹涌的海面上摇晃颠簸。 |
| 4. | The ship rolled over and sank 船翻身沉了下去。 |
| 5. | Nonlinear dynamical character of ship rolling investigated by harmonic wavelet transform 用谐波小波变换法研究船舶横摇的非线性动力特性 |
| 6. | Variable structure adaptive robust controlalgorithm applied to fin control for ship roll stabilization with uncertain system 船舶减摇鳍系统的变结构自适应鲁棒控制 |
| 7. | The 654 - foot ship rolled onto its side south of the aleutian islands , forcing a dramatic helicopter rescue of the crew last night 昨晚该长达654英尺的轮船迅速驶向阿留申群岛南侧,迫使(海岸巡逻队)采取较大规模的直升机援救行动。 |
| 8. | The test results indicated that test rolling table can simulate ship rolling motions on the wave and passive u - tube tank designed achieves stabilization effects to a certain extent 试验摇摆台的成功研制,将为装备减摇水舱的实船进行准确且可靠的横摇运动预报提供一个稳定的试验平台。 |
| 9. | This paper applies ittc single - parameter ocean wave spectrum to simulate a random long - crested ocean wave according to statistics superposition theory and real - time simulate disturbance on the ship by random wave . it simulates roll and pitch of the ship in random wave in the time domain and gains roll angle ( t ) and pitch angle ( t ) signal of ship rolling movement 本文根据统计叠加理论,采用ittc单参数标准海浪谱仿真模拟实际的长峰波随机海浪,进而实时仿真长峰波随机海浪对船舶的随机扰动,对船舶在海浪中的横摇和纵摇运动进行了时域仿真,得到船舶摇荡运动的横摇角信号( t )和纵摇角信号( t ) 。 |
| 10. | For the dynamic process of ship rolling movement , this paper analyses its dynamic date with time series analysis method and brings up this system ' s the most excellent autoregressive model ( ar model ) according to least aic criterion ( akaile , information criterion ) . it reveals the regular pattern of ship rolling movement and forecasts the future value of roll angle and pitch angle , then transforms it to adjusting value of object and adjusting it according to appropriate control rules 对于船舶摇荡运动这一动态过程,采用时间序列分析的方法,建立系统的自回归模型( ar模型) ,并根据最小aic信息量判定准则保证建立的系统模型为最优化模型。利用参数模型的方式对船舶横摇、纵摇运动的动态数据进行分析处理,揭示船舶摇荡运动的规律,预测船舶横摇角、纵摇角的未来值。 |