New Castle Bulk Carrier Hull Structure Design Based On HCSR

In GBS (Goal-based ship construction standards for bulk carriers and oil tankers), which is published by IMO, it has more detailed requirements about safety of ship, setting regulations, warranties of shipping operation, occupation standards. In order to meet the GBS requirement, all the committees organized special workgroups to study and compile advises from ship owners and ship yards all over the world for establishing new standards for bulk carriers and oil tankers, which finally leaded the formation of HCSR (Harmonized Common Structural Rules)The first edition of draft rules have already been published in July2012, the second edition published in April2013. Now the draft rules are almost complete, the definition and description have covered the requirements of GBS. HCSR harmonized the old rules for bulk carriers and oil tankers by making integration in nine aspects:wave load, buckling, FEA, corrosion, welding, fatigue of hatch corner, operate vessel inception, fatigue, description.By tracking progress of GBS and HCSR, this thesis studies and evaluates the effect of the rules for the type of Newcastle bulk carrier, and researches the effect of design and construction work for bulk carriers. Base on the draft rules, the structural design of Newcastle bulk carrier has been updated, and the HCSR requirements have been verified primarily.The type of Newcastle bulk carrier is a kind of New Castle designed by DSIC, which meets the requirements of CSR. For studying the effect of HCSR for bulk carrier and the following update of other ship types, this paper compares the differences between the requirements of HCSR and CSR, and analyses the structure strength of cargo hold region by rule calculations and FEM. This will provide powerful technique support for effect of HCSR. The primary coverage as follows:Make a detailed comparison of the differences between the requirements of HCSR and CSR, and analyze the effect of new requirement of HCSR for the design of bulk carrier.Study the scantlings of the structure requirements of HCSR from the rule calculations for each transverse section. By comprising the difference of scantlings with the CSR ship type, analyze the reasons of the scantlings change and find the determinants of scantlings.Evaluate yielding and buckling for the structure of cargo hold region By FEM. Make a comparison of all the scantlings and weight change of the cargo hold region between the calculation result of HCSR and rule requirement of CSR. Come to a research conclusion about the effect of meeting requirement of HCSR.