台风状态下码头护舷受力与吸能特点分析

Forces and Energy Absorption of the Fenders Under Typhoon State

分析了台风状态下的系泊船舶所受的环境力,并进一步建立了系泊状态下的平衡方程,采用模矢搜索法求解了平衡方程组,求解过程中,护舷的反力-变形曲线采用三次样条插值进行模拟,最终解出护舷的受力与吸能.在不同的波流夹角和不同的缆绳预张力的情况下,找出了护舷可能失效的波流夹角的危险区域,对护舷的受力规律进行了分析和总结,并计算了恶劣海况下,两种不同性能护舷的受力和吸能情况.

Environmental loads of ships in mooring were analyzed.Equilibrium equations were established based on static analysis and solved by pattern search.The functional relation between deformation and reaction of fenders was simulated by cubic spline curve through the pattern search process.Dangerous angle between wave and current which may lend to fender failure was founded by calculating and comparing,furthermore,the forces and energy absorption of the fenders were analyzed and summarized.Reaction and energy absorption of two different fenders in a bad sea conditions were calculated and compared.