MEG4规范对导缆孔的新要求及相应的设计改进

New Demand for Chock of MEG4 and Corresponding Improvement

根据规范《系泊设备指南》(“MOORING EQUIPMENT GUIDELINE”,2018年第4版,简称:MEG4)要求,系泊缆绳弯曲直径要大于15倍的缆绳直径。该数值在导缆孔国际标准中是12倍。船东经常根据新规范(MEG4),要求船厂改变原来的导缆孔,以满足新要求。文章说明了MEG4为什么要将弯曲比从原来的12改成15,以及这样做的好处。如何设计出满足MEG4要求的导缆孔,文章给出了例子,供设计人员参考。

According to the requirement of the rule“Mooring Equipment Guideline”(4th Edition,2018,abbr.MEG4),the bending diameter of the mooring cable should be more than 15 times of the cable diameter.The value in the chock international standard is 12 times.Ship owners often require the shipyard to change the original chock according to the new rule(MEG4)in order to meet the new demand.The paper explains why MEG4 changes the bending ratio from 15 to 12 and the advantage of the change.The paper gives an example to explain how to design the chock which meets the requirements of MEG4.It is to offer reference for the designers.