论文部分内容阅读
本文对装有橡胶护舷的深水高枕码头结构,在行近船舶撞击下的复振问题,提出一种考虑结构阻尼的分析法.假定行近船舶通过护舷同码头结构段发生塑性碰撞瞬间、整个复合系统在水平面内形成5个自由度、有阻尼的自由振动状态.文中利用滞变阻尼理论导出了阻尼复振的通解,通过算例的电算结果,分析了主要参数对撞击力、桩顶动反力及动位移的影响规律.文末得到了初步的定性结论.
In this paper, an analysis method considering the structural damping is proposed for the deep-water high-pillow wharf structure with rubber fenders under near-ship collisions. It is assumed that the ship undergoes a plastic collision with the wharf structural section through the fenders, The entire composite system forms a five-degree-of-freedom, damped state of free vibration in the horizontal plane. In this paper, the general solution of damped resonance is derived by using the hysteretic damping theory. Through the calculation results of the example, the main parameters of the impact force and pile are analyzed. The law of influence of top reaction and dynamic displacement. At the end of the paper, a preliminary qualitative conclusion was obtained.