【摘要】 根据Jonswap谱确定随机波浪功率谱,进而由同一功率谱使用Shinozuka方法计算生成10个随机波浪力谱,应用雨流计数法对波浪力谱进行循环计数处理,最后使用基于能量释放率的Paris公式方法对构件进行疲劳裂纹扩展计算.可为海洋结构物的疲劳设计及疲劳寿命评估提供一定的参考.更多还原

【Abstract】 In this study,ten random wave force spectra are first generated via Shinozuka technique from a specific random wave power spectrum via Jonswap technique.Then,the wave force spectrum is circulatedly processed using rain-flow counting method.Finally,the structural fatigue cracking propagation is computed based on the Paris equation with regard to energy releasing rates.Therein,this approach paves a venue for fatigue design and life-cycle estimation of sea-based structures.更多还原