Tag: mooring analysis

We want you to fail

We want you to fail. Virtually. So you don’t fail in reality. With Dynamic Analysis, you can reduce real-life failure.

 

With dynamic analysis, you can test your virtual prototypes; pushing your designs to their breaking point before going full scale.

But what is dynamic analysis? And what does it mean in the ocean engineering industry?

In ocean engineering, dynamic analysis uses virtual prototypes of vessels and equipment operating in ocean conditions using simulation software.

These virtual prototypes capture the dynamic response caused by the effect of wind, waves, and ocean currents. Easy to use software tools allow for much quicker design iteration and optimization compared to rules of thumb or rough calculations. Providing a swift and accurate analysis of the vessels and equipment’s response in various environmental conditions and reduces the need for physical prototypes and testing.

When you perform dynamic analysis, you reduce the risks and uncertainty of a project by considering the nonlinear and complex effects of current, wind and waves.

With dynamic analysis, you can apply industry best practices for installation and maintenance processes and explore design alternatives efficiency using an easy to use and flexible unified modelling environment.

At any stage of the project, virtual prototypes can be used to answer questions related to engineering design, planning, training, operations, and safety.

Some common questions our clients look to answer are;

  • How will my mooring system respond to wind and waves?
  • How will my ship behave in a seaway?
  • How can I safely tow this barge?
  • How will my towed body respond?
  • How will the pipeline be loaded during install?
  • How do tidal energy platforms behave in current and waves?
  • How much energy can my wave energy converter extract from the waves?

To answer these questions Dynamic Systems Analysis created ProteusDS, a powerful finite-element based analysis tool with intuitive pre and post-processing capabilities.

With ProteusDS, users can create virtual prototypes of marine, offshore, and subsea technologies. For example, DSA recently led an ecoEnergy Innovation Initiative (ecoEII) and launched the ecoSPRAY system to gather data and verify the behaviour of floating tidal energy platforms and their moorings in high-energy turbulent tidal flows.

The NRCan ecoEII project is helping to reduce the cost of in-stream tidal energy through the development of comprehensive site assessment methods and technologies. Lessons learned from this project will help smaller and remote communities deploy smaller scale tidal energy systems and support them with their local equipment and capabilities.

Image of a ProteusDS simulation of the ecoSpray tidal energy platform

 

The ecoSPRAY is deployed in Grand Passage between Freeport and Westport, NS, in the Outer Bay of Fundy. The Bay of Fundy has the highest tides in the world with current speeds that can reach up to 11 knots. With the help of ProtuesDS and its advanced finite-element capabilities, DSA was able to simulate the floating platform and mooring configuration before deployment.

 

The ability to view and understand how a system will react is a significant advantage in any ocean industry. It allows you to plan and gain insight into how a system will respond to a wide range of conditions. Determining areas of potential problems will reduce project risk and assures that the design can withstand the extreme ocean conditions.

Dynamic analysis is used for a wide variety of marine industries including;

Designing for the ocean environment is a constant challenge. Dynamic analysis allows rapid innovation and optimization while reducing risk to fail in the harsh ocean environment.

Interested in DSA’s ocean engineering numerical modelling expertise? A quick email to see if ProteusDS is the right solution for you is a great place to start.

button to contact dynamic systems analysis

 

 

 

DSA Employee Featured in World Aquaculture Magazine

Bridging the Gap

Environmentally Friendly Aquaculture Design

Did you know that aquaculture is responsible for the production of roughly 50% of the world’s seafood? In Canada aquaculture accounts for 14% of the total Canadian fisheries production and 33% of its value. The aquaculture industry plays a vital role in all Canadian provinces and territories, employing nearly 10,000 people primarily in small communities.

Aquaculture has been around for thousands of years but has only been recognized as an industry in western society for four decades. During this time period, poor government regulation, environmental impacts and lack of industry promotion has had a negative impact on the image of the aquaculture industry.

In steps Adam Turner, a recent graduate of the Master of Science in Mechanical Engineering program at the University of New Brunswick, who is currently a Mechanical Engineer in Training at Dynamic Systems Analysis (DSA). Adam’s master’s thesis focused on the hydrodynamic wake properties of scale model fish cages and fish cage arrays, to gain a better understanding of wake velocity, wake topology, wake turbulence and wake recovery. The results of his work are being used to better understand how to place extractive species in aquaculture farms for optimized nutrient extraction.

By focusing his studies on how water moves through fish cages and cage arrays, Adam is helping the aquaculture industry understand how current flow will impact nutrient and waste flow, and how that impacts surrounding habitats. Adam also draws attention to the vital role extractive species (mussels, sea cucumbers, kelp, etc.) play in and around aquaculture farms, as they have a natural ability to recycle nutrients or waste, making them a living filter.

Green dye can be seen moving with the current flow.

Adam’s scale model testing research (currently featured in the December Issue of the World Aquaculture Magazine), suggests that the placement of extractive species, and current flow through cages should be an important consideration for any aquaculture farm as it will help to reduce the environmental impact these farms have on the surrounding marine environment.

From theory to practice, Turner is focusing his attention on aquaculture engineering projects at Dynamic Systems Analysis using their ProteusDS software. The software plays a vital role in allowing Adam to easily and effectively conduct mooring, motion and anchoring analyses, with use of ProteusDS’ built in hydrodynamic cable and net models. The data gained from these assessments will play a vital role in helping producers and site managers in the protection and maintenance of their aquaculture farms.

 

Heading to Aquaculture 2016 in Las Vegas? Check out Adam’s session IMTA/Aquaculture on Wednesday, February 24th at 10:30am.