Approximation Method for Flare Slamming Analysis of Large Container Ships in Parametric Rolling Conditions  

参数横摇下大型集装箱船外飘砰击的近似计算方法（英文）

作　　者：Yuan Lin Ning Ma Xiechong Gu 

机构地区：[1]State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai Jiao Tong University,Shanghai 200240, China

出　　处：《Journal of Marine Science and Application》2018年第3期406-413,共8页船舶与海洋工程学报（英文版）

基　　金：supported by the ChinaMinistry of Education Key Research Project "KSHIP-II Project"(Knowledge-based Ship Design Hyper-Integrated Platform)No.GKZY010004;the National Key Basic Research Program of China No.2014CB046804

摘　　要：Since the research of flare slamming prediction is seldom when parametric rolling happens, we present an efficient approximation method for flare slamming analysis of large container ships in parametric rolling conditions. We adopt a 6-DOF weakly nonlinear time domain model to predict the ship motions of parametric rolling conditions. Unlike previous flare slamming analysis, our proposed method takes roll motion into account to calculate the impact angle and relative vertical velocity between ship sections on the bow flare and wave surface. We use the Wagner model to analyze the slamming impact forces and the slamming occurrence probability. Through numerical simulations, we investigate the maximum flare slamming pressures of a container ship for different speeds and wave conditions. To further clarify the mechanism of flare slamming phenomena in parametric rolling conditions, we also conduct real-time simulations to determine the relationship between slamming pressure and 3-DOF motions, namely roll, pitch, and heave.Since the research of flare slamming prediction is seldom when parametric rolling happens, we present an efficient approximation method for flare slamming analysis of large container ships in parametric rolling conditions. We adopt a 6-DOF weakly nonlinear time domain model to predict the ship motions of parametric rolling conditions. Unlike previous flare slamming analysis, our proposed method takes roll motion into account to calculate the impact angle and relative vertical velocity between ship sections on the bow flare and wave surface. We use the Wagner model to analyze the slamming impact forces and the slamming occurrence probability. Through numerical simulations, we investigate the maximum flare slamming pressures of a container ship for different speeds and wave conditions. To further clarify the mechanism of flare slamming phenomena in parametric rolling conditions, we also conduct real-time simulations to determine the relationship between slamming pressure and 3-DOF motions, namely roll, pitch, and heave.

关 键 词：FLARE SLAMMING Approximation method PARAMETRIC ROLLING Asymmetric effects CONTAINER SHIP 

分 类 号：T[一般工业技术]