Quasi-Linear Theory of Ship Wave Resistance and CFD Analysis of Ship’s Environmental Impact

Amromin, Eduard; Kovinskaya, Svetlana; Mizina, M.; Mizine, Igor

doi:10.1115/fedsm2003-45440

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the absence of access to an existing comprehensive powering database for multihull configurations of interest (catamaran and trimaran hullforms), the TS data were generated using the modified quasi‐linear theory (MQLT) methodology of Amromin and Mizine (2003). MQLT is a CFD code based on a quasi‐linear theory, which has been verified by comparison with model test results and proved to be reliable to assess complex problems of multihull interference (Mizine, Karafiath et al 2009).…”

Section: Sdm For Multihull Shipsmentioning

confidence: 99%

“…This information is incorporated into the SDM for stability and power calculations. In the absence of access to an existing comprehensive powering database for multihull configurations of interest (catamaran and trimaran hullforms), the TS data were generated using the modified quasi-linear theory (MQLT) methodology of Amromin and Mizine (2003).…”

Section: Hullforms Definitionmentioning

confidence: 99%

See 1 more Smart Citation

Multidisciplinary Synthesis Optimization Process in Multihull Ship Design

Hefazi¹,

Mizine

Schmitz³

et al. 2010

Naval Engineers Journal

Self Cite

View full text Add to dashboard Cite

This paper describes the development and application of a synthesis‐level multidisciplinary design and optimization (MDO) method for multihull ships. This method is unique in utilizing advanced multi‐objective optimization methods, neural network (NN)‐based response surface methods (RSM), and in its broad scope, integrating powering, stability, seakeeping, hullforms definition, structural weights, and cost and payload capacity into a single design tool. This MDO method is developed in the context of a multilevel hierarchy system approach where the results of the synthesis level optimization can be used for subsystem optimization and overall coordination of multilevel design system. NN‐based RSM for seakeeping and powering is developed and used in the optimization process. This RSM approach moves the computational cost of such performance evaluations out of the optimization cycle, substantially reduces the optimization cost, and allows for using results of physics‐based methods, such as advanced computational fluid dynamics, at the synthesis‐design level of design hierarchy. Details of these methods are delineated and multi‐objective optimization results are presented in the form of Pareto optimum solutions for multihull ship concepts such as trimaran sealift support ships and catamaran high‐speed connector ships.

show abstract

Section: Sdm For Multihull Shipsmentioning

confidence: 99%

Section: Hullforms Definitionmentioning

confidence: 99%