船舶流体动力系数与频率响应计算

利用拉普拉斯变换技术及优化方法对船舶运动的试验衰减曲线进行分析处理，提 出了计算船舶流体动力系数及频率响应的新方法，与既往的方法比较将更加合理， 并且方法简单易行，误差较小．可同时求出各个频率下的流体动力系数及运动频率响 应。与试验结果及其他理论方法比较，针算结果是令人满意的。

Computation for Ship Hydrodynamics Coefficients and Frequency Response

By means of the Laplacian transformation and optimization technology to treat the experiment decay curves, a method for computing the ship hydrodynamic coefficients and frequency response presented in this paper . It is more reasonable, more simple and has less errors as compared with the other methods, and the hydrodynamic coefficients and frequency response in different frequencies can be obtained simultaneously.The comparison with other methods and experiment results show that the computation results in this paper are satisfactory.