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带副舵的潜艇尾舵受力分析 总被引:4,自引:1,他引:3
对一种带副舵的潜艇尾升降舵建立受力模型,综合分析水动力随主舵和副舵转舵角的变化规律,证明带副舵的潜艇尾升降舵能够比普通舵型提供更灵活和实用的操纵手段。 相似文献
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Evgeny I. Veremey 《船舶与海洋工程学报》2014,13(2):127-133
The objective of this work is the analytical synthesis problem for marine vehicles autopilots design. Despite numerous known methods for a solution, the mentioned problem is very complicated due to the presence of an extensive population of certain dynamical conditions, requirements and restrictions, which must be satisfied by the appropriate choice of a steering control law. The aim of this paper is to simplify the procedure of the synthesis, providing accurate steering with desirable dynamics of the control system. The approach proposed here is based on the usage of a special unified multipurpose control law structure that allows decoupling a synthesis into simpler particular optimization problems. In particular, this structure includes a dynamical corrector to support the desirable features for the vehicle's motion under the action of sea wave disturbances. As a result, a specialized new method for the corrector design is proposed to provide an accurate steering or a trade-off between accurate steering and economical steering of the ship. This method guaranties a certain flexibility of the control law with respect to an actual environment of the sailing;its corresponding turning can be realized in real time onboard. 相似文献
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潜艇近水面运动的定深控制研究 总被引:2,自引:0,他引:2
考虑了潜艇于近水面航行时波浪对深度测量的干扰,在分析潜艇运动特性的基础上,针对高频操舵问题,提出了一种“开环补偿+闭环增量修正”的定深控制方法。仿真结果表明其控制算法效果良好。 相似文献
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WANG Xian-zhou XU Han-zhen 《船舶与海洋工程学报》2006,5(2):24-29
Research was done to overcome traditional problems associated with automatic steering systems of a ship in a seaway. A ship' s dynamic model with wave disturbances was built and a wave filter was designed by means of an extended states observer (ESO). The model estimated the low frequency motion component from a heading measurement corrupted by colorednoise, so back-and-forth steering caused by high frequency wave disturbances was avoided. At the same time, a robust autopilot system, designed by variable structure control theory, was presented. Simulation results achieved in dangerous sea status show that the wave filter works very well and the autopilot has strong robustness to environmental disturbances and model perturbation, and more importantly, the frequency of rudder adjustments is reduced noticeably. 相似文献
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潜艇运动的非线性滑动控制 总被引:4,自引:1,他引:3
文章对潜艇运动模型作了合理简化后,考虑了潜艇横向速度对向角速度的影响;并通过运动方程估计垂向速度,地MIMO非线性系统直接进行联合操舵控制规律的综合,研究潜艇航深稳定和潜浮运动的控制问题。得出的滑动控制规律物理机理明确仿真结果表明,控制效果良好。 相似文献
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设计了一种基于RBF网络和遗传优化的船舶操纵模糊控制器。首先讨论了传统模糊控制器应用于船舶操纵控制的不足,然后根据模糊系统在特定情况下与RBF网络具有等价关系的特点,采用具有加权平均输出的RBF网络构造了一个船舶操纵模糊控制器,有效地消除了小偏差范围的舵角抖动现象。在此基础上,根据船舶操纵的特点提出了一种尺度变换因子的自整定方法,并采用遗传算法对自整定过程中的可变参数进行优化,以使控制器能够适应实时控制过程中的时变性和不确定性,保持良好的控制性能。最后针对某大型船舶的非线性模型,采用Matlab 6.1的Simulink工具进行了转艏操纵仿真试验,获得了满意结果。 相似文献