Hull

Gas is transported on by ships designed to transport it in liquefied state.  This is logical choice reducing its volume and  making the transportation economical. Specific cargo properties requires special ships called Liquefied Gas Tankers  which have unique construction features and differ considerably from other classes of ships. Depending on the cargo type,  these  ships are Liquefied Nat...

CARLSON DESIGN Hull Designer , a simple, interactive, visual 3-d hull design Windows program for modeling and developing panels for hard chine construction. Find Center of Buoyancy, Center of Lateral Area, Length Waterline, and righting moment (pitched or heeled) among other calculations. Create patterns for stem, stern, bulkheads, up to 10 chines, and up to 8 frames for construction. Include...

DELFTSHIP Delftship  specializes in the development of high end marine software using technologies for which the foundation was laid at the Delft University of Technology. We combine an accurate and fully 3D model of the vessel, cutting edge technologies and highly optimized graphical user interfaces into software that is easy to operate and very accurate. That's why today our software is ...

This is an example of designing FPSO. Design of a Floating Production, Storage, and Offloading (FPSO) System and Oil Offtake System For Offshore West Africa Project Definition Floating Production, Storage, and Offloading (FPSO) systems comprise a new branch in offshore technology. In keeping with the innovative spirit of the offshore industry, this design of an FPSO will implement this m...

Coefficient of fineness of water plane    Cwp = Aw / Lwl B  Midship section coefficient    CM = AM / BT  Block coefficient      CB=Displ./ BTLPP   Prismatic coefficient   CP=Displ. / AMLPP  Vertical prismatic coefficient    CVP =Displ./ AWT Resistance R=Sρv2(rf +rw)/2 S=underwater area;  ρ =water density; v=speed; rf, rw=resistance coeffi...

FREESHIP PLUS An innovative instrument allowing you to develop a hull  form and to calculate hydrostatics and stability    FREE!ship Plus- Hull modeling with subdivision surfaces and hydrodynamics of ship calculations in FREE!ship Plus are based on the systematic serial tests of models of the ships and boats, inclusive more than 25 published methods and series for calculation of resistance...

ARCHIMEDES MB ArchimedesMB is a software package that allows users to analyze the stability and hydrostatics of their vessels. It can import models from software packages such as GHS, Auto hydro and Defcar as well as being fully compatible with freeware modeling software such as FreeShip....

What  to check when inspecting welds When inspecting welds firstly be familiar with weld types. We will consider those mentioned in IACS N0.47 Shipbuilding and repair standard. Should also be used with symbols used in drawings, to understand all conditions imposed for a specific weld by design /engineering. 1. misalignment   -   see IACS No.47, tab.7.1, 7.2, 7.3 for acceptable misalignm...

When inspecting welds firstly be familiar with weld types. We will consider those mentioned in IACS N0.47 Shipbuilding and repair standard. Should also be used with symbols used in drawings, to understand all conditions imposed for a specific weld by design /engineering.   1. visual examination Visual examination for misalignment, size, overlapping, undercut, etc. 2.bubble testing...