艉直式跳板滚装船丁靠直立式码头装卸载保障

针对斜坡式码头通用性差、难以满足部队全域机动需要的问题,基于艉直式跳板滚装船丁靠直立式码头的装卸载模式,建立了装卸载作业时水位和时间的计算模型。水位模型根据船艉跳板与码头搭接的上下两个极限位置来推导出作业水位的取值范围。时间模型根据潮汐涨落规律,近似为简谐运动曲线,相继求得潮高修正数、相位角、潮面与低潮(高潮)的时间间隔等参数,最终得到相应潮时。通过实例验证了两种模型的正确性,并计算出装卸载作业的水位和时间范围。

Loading and unloading guarantee of ro-ro ship with stern straight type springboard T-type berthing at vertical lifting wharf

In view of the problem that sloping wharf cannot meet the troops global mobile because of poor universality,based on the loading and unloading mode of ro-ro ship with stern straight type springboard T-type berthing at vertical lifting wharf,the water level and time calculation models are established.Based on the two limiting position of stern springboard overlap jointed with the wharf,the water level model deduced out the data range of operation water level.In the time model,tidal fluctuation regularity is regarded as simple harmonic motion.The amendment number of tide height,phase angle,and time interval of tide level and low or high water marks are get in succession,consequently the time table of corresponding tide is get.The correctness of the two models is verified and the data range of water level and time for loading and unloading are get by an example