实船耐波性试验数据快速分析方法研究

Research on the Fast Analysis Method to Deal with the Experiment Data of the Real Ship in Wave

针对实船耐波性试验数据不规则性强、数据量大的特点,研究了包括有效数据采样、数据中心化、快速傅里叶变换(FFT)、幅值统计分析等环节在内的耐波性试验数据快速分析方法,成功开发耐波性试验数据分析系统,直接由原始试验结果分析得到舰船在海浪中的运动响应幅度统计值,并将原始记录及分析结果的曲线和数据导出,生成Excel等形式的文件,大大简化了试验数据处理过程,提高了效率。

The fast analysis method to deal with the large scale experiment data of the real ship in wave, including the valid data sampling, the data centering adjustment, the Fast Fourier Transform （FFT） and the statistics of the amplitude, has been researched. Then the seakeeping experiment data analysis system （SEDAS）has been developed successfully, with which the statistical results of the ship amplitude in wave could be quickly obtained from the original experiment data and the results could be exported to Excel file easily. There fore, present work has made the process to analysis the large scale seakeeping experiment data much easier, and has enhanced the efficiency a lot.