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Washington, ME, United States

Maine Maritime Academy is a public post-secondary college and nautical training institution with approximately 900 students, located in Castine in Hancock County, Maine, USA. The Academy was established by the 90th Maine Legislature on March 21, 1941. Maine Maritime Academy is a public college. Costs of admission are comparable to the nearby University of Maine. Unlike federal service academies, a congressional recommendation is not required to attend this state school. Students are not obligated to go to sea or into the military after graduation, and a large portion of the graduating class chooses shore-side employment, often in maritime related fields or the power generation industry.Maine Maritime Academy is one of six maritime training colleges in the United States, and one of only two of these maritime academies which fields a Navy Reserve Officers Training Corps unit. The college is affiliated under the New England Association of Schools and Colleges. Maine Maritime Academy is the only business, residence, or organization to receive mail at the US ZIP code 04420. Wikipedia.

Wlodkowski P.A.,Maine Maritime Academy
International Journal for the History of Engineering and Technology

This paper reviews the career of the late nineteenth- and early twentiethcentury Russian engineer Aleksej Nikolaevich Krylov (1863-1945). He made prodigious contributions to the fields of marine engineering, naval architecture, strength of materials, physics, analogue computers, ballistics, applied mathematics, astronomy, and engineering education. Surprisingly unknown in the West today, Krylov had achieved international fame in 1899 when he became the first foreigner to receive a gold medal from the Royal Institution of Naval Architects in London. After the years of upheaval following the Russian Revolution of 1917 and the subsequent civil war, Krylov was instrumental in re-establishing scientific contacts with the West and defining Soviet technological policy. Later in life, his erudition extended into the history of science and technology. This paper focuses on his first groundbreaking work: the development of methods to correct compass deviation and the corresponding design of his new dromoscope. © The Newcomen Society for the Study of the History of Engineering & Technology 2015. Source

Epps B.P.,Dartmouth College | Kimball R.W.,Maine Maritime Academy
Journal of Ship Research

A unified lifting line method for the design and analysis of axial flow propellers and turbines is presented. The method incorporates significant improvements to the classical lifting line methods for propeller design to extend the method to the design of turbines. In addition, lifting line analysis methods are developed to extend the usefulness of the lifting line model to allow generation of performance curves for off-design analysis. The result is a fast computational methodology for the design and analysis of propellers or turbines that can be used in preliminary design and parametric studies. Design and analysis validation cases are presented and compared with experimental data. Source

Flores S.M.,University of Helsinki | Ziff R.M.,University of Michigan | Simmons J.J.H.,Maine Maritime Academy
Journal of Physics A: Mathematical and Theoretical

In a recent article (Simmons 2013 J. Phys. A: Math. Theor. 46 494015), the last author of this article used c = 0 logarithmic conformal field theory to predict crossing probability formulas for percolation clusters inside a hexagon with free boundary conditions. In the present article, we verify these predictions with high-precision computer simulations for equiangular hexagons with side lengths alternating from short to long. Our simulations generate percolation-cluster perimeters with hull walks on a triangular lattice inside a hexagon. Each sample comprises two hull walks, and the order in which these walks strike the bottom and upper left/right sides of the hexagon determines the crossing configuration of the percolation sample. We compare our numerical results with the predicted crossing probabilities, finding excellent agreement. © 2015 IOP Publishing Ltd. Source

Simmons J.J.H.,Maine Maritime Academy
Journal of Physics A: Mathematical and Theoretical

We consider the sub-sector of the c = 0 logarithmic conformal field theory (LCFT) generated by the boundary condition changing (bcc) operator in two dimensional critical percolation. This operator is the zero weight Kac operator φ1, 2 φ, identified with the growing hull of the SLE 6 process. We identify percolation configurations with the significant operators in the theory. We consider operators from the first four bcc operator fusions: the identity and φ; the stress-tensor and its logarithmic partner; ∂φ and its logarithmic partner; and the pre-logarithmic operator φ1, 3. We construct several intervals in the percolation model, each associated to one of the LCFT operators we consider, allowing us to calculate crossing probabilities and expectation values of crossing cluster numbers. We review the CG, which we use as a method of calculating these quantities when the number of bcc operator makes a direct solution to the system of differential equations intractable. Finally we discuss the case of the six-point correlation function, which applies to crossing probabilities between the sides of a conformal hexagon. Specifically we introduce an integral result that allows one to identify the probability that a single percolation cluster touches three alternating sides a hexagon with free boundaries. We give results of the numerical integration for the case of a regular hexagon. © 2013 IOP Publishing Ltd. Source

Koo B.J.,Technip | Goupee A.J.,University of Maine, United States | Kimball R.W.,Maine Maritime Academy | Lambrakos K.F.,Technip
Journal of Offshore Mechanics and Arctic Engineering

Wind energy is a promising alternate energy resource. However, the on-land wind farms are limited by space, noise, and visual pollution and, therefore, many countries build wind farms near the shore. Until now, most offshore wind farms have been built in relatively shallow water (less than 30 m) with fixed tower type wind turbines. Recently, several countries have planned to move wind farms to deep water offshore locations to find stronger and steadier wind fields as compared to near shore locations. For the wind farms in deeper water, floating platforms have been proposed to support the wind turbine. The model tests described in this paper were performed at MARIN (maritime research institute netherlands) with a model setup corresponding to a 1:50 Froude scaling. The wind turbine was a scaled model of the national renewable energy lab (NREL) 5MW horizontal axis reference wind turbine supported by three different generic floating platforms: a spar, a semisubmersible, and a tension-leg platform (TLP). The wave environment used in the tests is representative of the offshore in the state of Maine. In order to capture coupling between the floating platform and the wind turbine, the 1st bending mode of the turbine tower was also modeled. The main purpose of the model tests was to generate data on coupled motions and loads between the three floating platforms and the same wind turbine for the operational, design, and survival seas states. The data are to be used for the calibration and improvement of the existing design analysis and performance numerical codes. An additional objective of the model tests was to establish the advantages and disadvantages among the three floating platform concepts on the basis of the test data. The paper gives details of the scaled model wind turbine and floating platforms, the setup configurations, and the instrumentation to measure motions, accelerations, and loads along with the wind turbine rpm, torque, and thrust for the three floating wind turbines. The data and data analysis results are discussed in the work of Goupee et al. (2012, "Experimental Comparison of Three Floating Wind Turbine Concepts," OMAE 2012-83645). © 2014 by ASME. Source

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