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Portland Tidal Power Firm Awarded Federal Grants

August, 2016 (Portland --) Maine Marine Composites will assist Ocean Renewable Power Company (ORPC)... READ MORE

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Maine Company Announced as Finalist for Wave Energy Prize

August, 2016 (Portland --) Maine Marine Composites (MMC) has completed an extensive analysis... READ MORE

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Maine Marine Composites Completes Research Study on Offshore Wind Turbines

September, 2015 (Portland --) Maine Marine Composites has completed a government funded study of... READ MORE

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MMC gives webinar on issues with mooring systems

Richard Akers, CTO of Maine Marine Composites, gave a webinar... READ MORE

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Maine Marine Composites Wins Federal Grant to Study Ocean Turbine Stress Limits

Jan 14, 2014 ( Portland-- )  Maine Marine Composites has been awarded... READ MORE

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MMC Completes Analyses for Waller Marine, Inc.

October 9, 2012 (Portland --) Maine Marine Composites, LLC (MMC) announced successful... READ MORE

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Maine Marine Composites Presents at IBEX 2012

Richard Akers, CTO of Maine Marine Composites, gave a presentation on "Advanced Analysis for... READ MORE

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Maine Marine Composites Completes Hydrodynamics Analysis for Ocean Renewable Power Company

(Portland --) Maine Marine Composites, LLC (MMC) announced successful completion of a hydrodynamics... READ MORE

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Maine Marine Composites Receives Grant, Subcontract to Extend Analysis Capacity of Software

(Portland --) Maine Marine Composites, LLC has been awarded both a defense subcontract and... READ MORE

MMC engineers often use computer programs based on “strip theory” to analyze the response of a displacement ship or barge to sea conditions These programs calculate the hydrostatic and hydrodynamic response of individual transverse strips of the ship to waves. By integrating the sectional responses an accurate picture of the response of the entire vessel can be created.

Primary among the strip theory tools is VisualSMP.

This program suite can be used to predict motions and stress conditions on ships. Derived from the US Navy's SMP (Ship Motion Program), VisualSMP is a direct result of more than 30 years of US Navy's research.

VisualSMP calculates 6-DOF rigid body motions, absolute motions of any specified points and the relative motions of specified points relative to waves in both regular and irregular waves. This program suite is useful for evaluating ship motion reduction measures such as bilge keels, rudders, fixed fins, controllable fins/rudders, moving weights and various anti-roll tanks. Irregular seas are modeled using either the two parameter Bretschneider, the three parameter Jonswap, or the six parameter Ochi-Hubble wave spectral models. Motion outputs include displacements, velocities and accelerations. Load outputs include vertical and transverse shear forces, longitudinal and horizontal moments, and torsion moments at user's specified locations. VisualSMP will calculate the probabilities and frequencies of submergence, emergence, and/or slamming occurrence, slamming pressure/force, MSI (motion sickness incidence) and MII (motion induced interruptions, i.e., tipping and sliding) for various locations on the ship.