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“Comparative Analysis of Common Methods for Predicting Vertical Acceleration of Hard Chine Planing Monohulls including Correlation to Hydrodynamic Model Test Data”

May 18, 2022

by Jeffrey Bowles, P.E. & Jonathan Soja
Presented at the Fourth Chesapeake Power Boat Symposium

 

We talk a lot about going fast here at DLBA.  Speed is exhilarating, right?  Well, we have to remember that it is not the end-all be-all requirement for water borne craft.  There is a little thing called seakeeping, and in its realm, size does matter! Passengers want an enjoyable, comfortable ride – not one filled with large motions and jarring accelerations.  The bigger the boat, the softer the ride, but often times you can’t just make the boat bigger.

Courtesy: DLBA

That’s when naval architects have to roll up their sleeves to design a boat that has great ride quality, but also stick to size constraints.  In these situations, when adding size and/or weight is not an option, we look to develop the hull form and refine the weight distribution to reduce vertical accelerations.  In order to assess the impact of design tradeoffs, a solid routine is required for predicted vertical accelerations.  There are many tools and techniques out there, and in the article: “Comparative Analysis of Common Methods for Predicting Vertical Acceleration of Hard Chine Planing Monohulls including Correlation to Hydrodynamic Model Test Data,” it looks at how a couple of those methods stack up against each other, and against model test data.  Take a look and see how it compares to your team’s approach for predicting accelerations and let us know what you think!

 

If you would like to engage in a technical discussion, please reach out to a member of the DLBA team! Contact Us.

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