Marine Transportation Articles

Global wave statistical analysis and its use in deepwater operations

Why do we need wave analysis? For the design of offshore operations such as installation and transport of offshore structures, as well as lifecycle design of floating and fixed structures, knowledge of extreme waves as well as the probability of different sea-states...

The four important factors for a ship’s windage area calculations

Introduction The windage area of a vessel or offshore structure is the area that is exposed directly to the wind. As is obvious, this is the area of all items above the waterline. This will include Part of the hull/offshore structure above the waterline...

Calculating the maximum stacking height of pipes

Introduction Pipes (or linepipes or joints) are used for multiple purposes and locations in the maritime/offshore industry. Onshore and offshore pipelines are used for transportation of fluids on land, over and underwater. Pipes are fabricated in an onshore facility...

Safe Towing: Calculating a towline’s catenary and sag

Introduction Towlines connect a tug to the vessel being towed and are defined by multiple characteristics like Weight, Diameter, and Stiffness. The tension in the towline during the towing operation is not static but keeps varying with the distance between the tug and...

The four important factors for a ship’s windage area calculations

The four important factors for a ship’s windage area calculations

Introduction The windage area of a vessel or offshore structure is the area that is exposed directly to the wind. As...

Calculating the maximum stacking height of pipes

Calculating the maximum stacking height of pipes

Introduction Pipes (or linepipes or joints) are used for multiple purposes and locations in the maritime/offshore...

Safe Towing: Calculating a towline’s catenary and sag

Safe Towing: Calculating a towline’s catenary and sag

Introduction Towlines connect a tug to the vessel being towed and are defined by multiple characteristics like Weight,...

Designing the lashings of deck cargo using IMO CSS

Designing the lashings of deck cargo using IMO CSS

Introduction More than 70% of the earth is covered by water, which makes shipping historically the easiest and...

Using MS Excel to evaluate the Stability of existing Barges

Using MS Excel to evaluate the Stability of existing Barges

Barges are the simplest, and yet most widely used of marine vehicles. They are used for a variety of purposes ranging...

Calculating forces on a ship’s deck cargo – a simplified approach

Calculating forces on a ship’s deck cargo – a simplified approach

A cylindrical deck cargo (Source: Wikimedia) Introduction A ship’s deck is used to transport many different types of...

Designing a pad-eye: little items with big intricacies

Designing a pad-eye: little items with big intricacies

Pad-eyes are one of the smallest and most universally used structural items in the maritime and Oil & Gas...

Designing a simple 4-point lashing system for a Deck Cargo

Designing a simple 4-point lashing system for a Deck Cargo

Introduction Lashing of a deck cargo on a ship involves different means and mechanisms to secure the cargo to the deck...

Selecting the right equipment for towing operations – Emergency Towing

Selecting the right equipment for towing operations – Emergency Towing

In Part 1 of the article, we discussed the regular towing arrangements and how to select the towing gear for the same....

Selecting the right gear for towing operations – Part 1

Selecting the right gear for towing operations – Part 1

Towing operations seem pretty straightforward – we just need to connect the vessel to be towed to the right sized tug...

Removing Human Error in Ship Performance Analysis

Removing Human Error in Ship Performance Analysis

Introduction Shipping is the most dominant means of transport that facilitate global trade. Over 90% of world trade is...

Transportation Analysis for deck cargo – complete breakdown

Transportation Analysis for deck cargo – complete breakdown

Introduction In the simplest terms, Transportation Analysis is the complete design and engineering which goes behind...

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