【摘要】 波浪谱是研究随机波浪的主要方法,也是海洋工程设计的重要依据。介绍在线性波情况下圆柱形结构响应施加了白噪声之后频域内的载荷识别方法,根据谱分析的方法,考虑线性波前后桩腿相位差的影响,比较单个频点反演与采样频率内利用对频率取矩法反演结果的准确度,结果表明在已知波浪谱的情况下利用矩来进行反演识别有明显的优越性。更多还原

【Abstract】 Wave spectrum is not only the main method of studying random wave but also the important basis of ocean engineering’s design.This paper presents the identification method of force parameters under the circumstance of linear wave theory in frequency domain through applying white noise to the cylindrical structural response.According to the method of spectral analysis,the effect of phase difference between the foremost and following legs about the linear wave is considered.The precision of the two identification methods is also compared between the single frequency and the quadrature about the frequency ω in the sampling frequency.The result shows that the identification method through the quadrature about the frequency has an obvious advantage on the condition that wave spectrum is known.更多还原