摘要
在选择了描述船舶运动坐标系的前提下,根据刚体动力学理论和牛顿第二运动定律,推导了舰船六自由度的非线性模型,并在此基础上建立了舰船在水平面中的非线性运动模型。同时,根据平稳随机过程理论对海浪的分析可知,利用白噪声驱动所设计的成形滤波器,能够获得海浪干扰的数学模型。上述模型既能很好地反映舰船的水动力特性,又能与原始波浪力、力矩相吻合,由此证明了模型的正确性。
Based on rigid body kinetics theory and the Second Newton Law, selecting coordinate system, nonlinear model of warship with six free degrees is acquired, then the nonlinear model of warship on water level is inferred. According to the wave analysis based on stable stochastic theory, applying white noise to drive the designed shaping filter, interference model of ocean wave is obtained. The above models can reflect water kinetics performance of warship and tally with the original wave force and moment, as a result, the correctness of constructed models is proved.
出处
《舰船科学技术》
北大核心
2005年第5期25-27,共3页
Ship Science and Technology
