半潜起重船动力定位环境载荷计算方法初探

以普通船型动力定位环境载荷计算原理为基础,研究了多立柱半潜起重铺管船定位环境载荷计算的特点,简要介绍了该船型动力定位环境载荷的计算方法,并编制了风、流载荷的计算程序,以2×8 000 t半潜起重铺管船为例进行实例计算。得到的总环境载荷和试验结果趋势比较接近,具有较大的工程实用意义。

Preliminary investigation on the calculation method of dynamic positioning environmental load of semi-submersible lifting and pipe-laying vessel

Base on the environmental load calculation theory of common vessels,the characteristic of dynamic positioning environment load on semi-submersible lifting and pipe-laying vessel with many columns is to be studied.The calculation method of the load is to be briefly introduced,and a calculating program for wind and current load is to be developed.As an example,the wind and current load on the 2×8 000 tons semi-submersible lifting and pipe-laying vessel is to be calculated.The results of overall environment load appear to be close to the experiment results,and would be practical in engineering.