Technical Paper
The Effect of Local Environmental Condition on the Ship Construction Design Standard
Tahun 2019
This study was aimed to clarify the classification rules requirements
for the ship hull structure. The main focus is on the effect of environment conditions
to that of rules formula variable. Generally, the classification rules is assumed
that the requirements is determined and formulated based on the worst
ocean environmental in the world, ‘North Atlantic Ocean condition’ (IACS
rec.34). This assumption was recommended by IACS rec.34 for the worldwide
shipping voyage. Kurniawan et al (2016) and Prasetyo et al (2018) presented
the comparison of environmental condition between the North Atlantic Ocean
and non – North Atlantic Ocean (Indonesian water and Australian water). It was
founded that the largest ratio of significant wave height between North Atlantic
Ocean and the target ocean was up to 700%. Since that the classification society
assumed that ship structure be designed on the basis of 10-8 long term
exceedance of probability of scatter spectrum of environmental condition, this
condition might give the substantial deterioration on the design standard that is
used specially only in specific area, i.e Indonesian waterways. In this study, the
effect of ocean environment of specific area (Indonesian waterways) is
compared with that of North Atlantic Ocean on the structural assessment of
vessel that might be operated at Indonesian waterways. The characteristics of
results are analyzed and examined. The classification rules requirement is
reviewed and discussed based on the comparative results.