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Video:  Selecting the Right Hullform

Video: Selecting the Right Hullform

Monohull, catamaran, trimaran . . . so many choices. Which hullform to pick? Can we draw upon any science to guide our choices, or we beg Lady Luck to guide us? This article provides a rational and design map for selecting hullforms applicable to any type of mission. This organized approach allows us to see past the limitations of historic examples and consider new alternatives.

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How Many Tons in a Pound?

How Many Tons in a Pound?

How man tons in a pound? When ships weigh thousands of tons, you really need to know which type of ton. So take five minutes and get clarity on the esoteric measurements of ship design.

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Six Tip to Improve Your FEA

Six Tip to Improve Your FEA

An experienced engineer doesn’t have some magic button to deliver great FEA. Masters of FEA trade-craft hoard many little tricks and nuggets of wisdom to deliver better FEA. These tricks yield better ways to detect human errors and ensure model reliability. Or methods to deliver faster results. Today we share six nuggets of wisdom for better FEA.

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How do I Select the Right Hull?

How do I Select the Right Hull?

Monohull, catamaran, trimaran . . . so many choices.  Which hullform to pick?  Can we draw upon any science to guide our choices, or shall we beg Lady Luck to guide us?  Although hullform selection does involve some experience and artistic preference, naval architects...

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Go FAST Boat:  Pros and Cons of a Planing Hull

Go FAST Boat: Pros and Cons of a Planing Hull

ZOOM!!!  No better way to describe planing boats.  They pack very fast speeds into a very small package.  Many planing boats achieve speeds well beyond the limits of larger craft.  How do they do it?  And what are the penalties for this extreme speed?  Discover if a...

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Smooth Sailing:  Pros and Cons of a SWATH Vessel

Smooth Sailing: Pros and Cons of a SWATH Vessel

Welcome to luxury cruising.  Glide above the waves without any jerky motions.  Walk about your accommodation deck, unhampered by nasty rolling motions.  If this temps you, come realize the dream of the SWATH vessel.  But it comes at a price.  Discover if this unique...

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Why You Want a Trimaran:  Pros and Cons of a Trimaran

Why You Want a Trimaran: Pros and Cons of a Trimaran

Three hulls are better than one!  That would be the adage of the trimaran.  It consists of one central hull with two smaller side hulls, called amas.  The average person conceives of the trimaran as something even more extreme than catamarans.  Lighter weight, higher...

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Six Keys to Better Marine FEA

Six Keys to Better Marine FEA

Tips to Improve Your FEA Model No matter how much work you do in finite element analysis (FEA), there is always room for improvement.  Masters of FEA trade-craft hoard many little tricks and nuggets of wisdom to deliver better FEA.  These tricks yield better ways to...

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Trust Your Singularity

Trust Your Singularity

Why FEA Singularities Are Acceptable https://youtu.be/-OHXl-mvR5U 1.0 Introduction You stare in dread at the FEA results, which show unbelievable stresses in small spots at the corners.  Don’t panic; they are only stress singularities.  Small regions where the FEA...

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Mesh Size Does Matter

Mesh Size Does Matter

FEA Errors from Mesh Size https://youtu.be/EDs7uqDRHDE   1.0 Introduction When was the last time you actually tested your finite element analysis (FEA) results?  Are you sure that every FEA analysis ever ordered is accurate?  Will you trust your life to it?  In...

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Reviewing FEA Analysis

Reviewing FEA Analysis

Get The Most From Your FEA Report 1.0 Introduction The engineer delivered a shiny new FEA report, but what does it mean to you?  What details to look for?  Are the results good or bad?  An FEA report contains much more value when all those colorful graphs reveal their...

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Miami Bridge Collapse and Professional Engineers

Miami Bridge Collapse and Professional Engineers

https://www.youtube.com/watch?v=Ucflj-MsJBI   Many heard about the disaster of the Miami bridge collapse last week.  Naturally, the dust didn't even settle before questions, speculation, and lawsuits started to fly.  We all wanted to know why.  How do we prevent...

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