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2022

Join the interactive Oceanographic Mooring Design Seminar at the Buoy Workshop September 19, 2022

When designing moorings, it’s easy to get lost in the details of all the parts you need Purpose-built software is needed to make it easy to find parts, arrange them, and adjust them into a design. ProteusDS Oceanographic Designer is a free purpose-built software tool for oceanographic mooring design. But
2022

Why the sensitivity of ship roll damping makes naval architects sweat

Dolphins might act like they have x-ray vision. But it’s not their eyes that help them see through the ground. Their fine-tuned sonar capabilities have made them a valuable part of maritime security and the protection of coasts and harbours for decades. They’re used to living and working in all
2022

Why drag loads are underwhelming at damping floating system motion

Snow is rare in my Canadian city. This might surprise you, given Canada’s reputation as a northern and wintry country, but I am lucky to live near the coast. The marine climate helps keep the weather surprisingly mild. Despite this, I do own a snow shovel. It’s a big one,
2022

Why it’s hard to distinguish between the effects of buoy and line drag on mooring knockdown

The southern border between the Canadian provinces of British Columbia and Alberta is, in places, very irregular. It might even seem to be random at first glance. Yet, there is some logical reasoning behind what is there. This border was measured and established over one hundred years ago – far
2022

When you need to fine tune surface buoy damping (and when you don’t)

Professional athletes make artistic synchronized swimming look effortless. Yet it is an incredibly demanding sport: it requires tremendous muscle power, endurance, and control to tread water and perform an elaborate dance simultaneously. On top of that, swimmers need to simultaneously keep in perfect sequence with a group in the water.
2022

ProteusDS Update

Based on feedback from users, we’ve made a few notable adjustments to our software. ProteusDS Oceanographic Designer is now more streamlined The Official Parts Library is now more integrated into ProteusDS Oceanographic Designer. The most up-to-date version of our Official Parts Library is now included with every install package so
2022

How to take the guesswork out of wave radiation forces

In 1830, the Swedish Navy was reeling after a major continental war. Their fleet was decimated, with many of their wooden sailing ships lost or badly needing repair. Securing wood to rebuild and maintain their fleet in the future was a top priority. The Navy estimated they would eventually need
2022

Why the added mass force can be confusing

Being invisible makes a lot of sense if you want to avoid predators. Many animals that live deep in the sea use this strategy. One example is the Glass Squid, which is almost entirely transparent. Almost. The big problem is that it’s impossible to be completely invisible. Eyes absorb light
2022

How to control downweight seabed clearance in wave powered profiler mooring design

Aerobraking can work well on paper in spaceflight dynamics, but if you’re not careful, it can end in disaster. Aerobraking is when a spacecraft deliberately flies through a planet’s atmosphere to adjust its trajectory. It’s not science fiction, either – the Venus Express spacecraft completed experimental aerobraking maneuvers in 2014.
2021

Why adapt shallow water geometric compliant moorings with a midwater float

Even though the Sargassum fish lives in the middle of the sea, it spends a lot of time crawling around. This is possible because its habitat is the tangled morass of Sargassum seaweed that floats in large patches in the ocean. These fish are highly adapted to live in this

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