On this page, you can find links to our internal MSDL report publications, as well as abstracts and bibliographic information for publications in peer-reviewed journal articles and conferences. Older publications by Dr. Collette before he founded the MSDL are also included. Where allowed by copyright, full text downloaded or pre-prints of articles are also provided. Papers where source code and data is provided for provenance will have a link below the abstract to access the code or data. Zotero metadata is also provided for the publications.
Department of Naval Architecture
and Marine Engineering
210 Naval Architecture and Marine Engineering
2600 Draper Dr., Ann Arbor MI 48109
Purswani, D, Zhu, J, Collette, M. "Variable-Fidelity Optimization of Stiffened Panels." In Proceedsings of PRADS 2010, 11th International Symposium on Practical Design of Ships and Other Floating Structures. Rio de Janeiro, Brazil
Genetic algorithm optimization approaches have grown in popularity over the last decade because of their robustness in handling difficult optimization problems and their ability to develop complete Pareto fronts in a single execution of the optimizer. Unfortunately this robustness comes with a price; genetic algorithms often require numerous objective function evaluations in the process of solving the optimization problem. This makes it difficult to maintain practical turn-around times when coupling genetic algorithms with computationally - expensive high-fidelity objective functions such as non-linear finite element analysis for structural design. As a potential solution to this problem, a variable- fidelity optimization scheme is proposed using a Kriging model constructed online to scale the results of rapid but lower-fidelity strength methods to that of a smaller number of high-fidelity finite element simulations. This variable-fidelity approach is demonstrated for a stiffened panel design problem with a modern cluster-computer approach.
Kuhn, J., M. Collette, W.M. Lin, E. Schlageter. D. Whipple, D. Wyatt, 2010. "Investigation of Competition Between Objectives in Multiobjective Optimization". In 28th Symposium on Naval Hydrodynamics, California Institute of Technology.
To Be Added
Collette, M., Lin, W.M. & Li, J., 2010. "Applying Advanced Simulation in Early Stage Unconventional Ship Design". In Grand Challenges in Modeling and Simulation (GCMS' 10) Summer Simulation Multiconference. 344-351, Ottawa, Canada.
A detailed description of the first, or global, optimization stage of two-stage hydrodynamic optimization framework for high-speed vessels is presented. A key feature of the framework is the application of advanced simulation in the early phases of design through the use of a global performance model driven by efficient surrogate models of hydrodynamic performance characteristics. The principle objective of the global optimization is to arrive at reasonable combination of principle overall dimensions, ratios, and buoyancy distribution that are near-optimum in terms of their performance. In the study presented, the development of such a model and the associated hydrodynamic performance surrogate models was demonstrated for a large SWATH hullform optimized for both high-speed transit and low-speed cargo transfer operations. Throughout the surrogate model generation process, special attention was paid to ensuring that the speed of surrogate model construction would be compatible with the limited time available for early-stage design studies.
Maki, K., D. Lee, D. Piro, and M. Collette. 2010. "Hydroelastic Impact of Stern Structure using CFD and FEA." In Grand Challenges in Modeling and Simulation (GCMS' 10) Summer Simulation Multiconference. 231-238, Ottawa, Canada.
This paper presents the results of the structural response due to slamming in the stern region of the Joint High Speed Sealift (JHSS) vessel. A slamming event is identified by performing rigid-body large-amplitude seakeeping simulations using the LAMP program. The event is characterized by the relative motion between the free-surface and hull at a specific point near the stern of the vessel. The structure is developed using ABS and other conventional design guidelines, and it is analyzed using the commercial FEA software ABAQUS. The stress of the fluid on the structure is obtained by using a computational fluid dynamics (CFD) solver built on the open source CFD Library OpenFOAM. The fluid stress is applied to the modal model of the structure using a robust and flexible grid-matching routine. Finally, the structural response is determined in the time domain by solving the system of modal equations of motion.