Parametric models for marine propellers

A. Arapakopoulos, R. Polichshuk, Z. Segizbayev, S. Ospanov, A. I. Ginnis, K. V. Kostas

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

In this work we are focusing on the presentation and comparison of two parametric models used in the generation of marine-propeller geometrical model instances. Their main function lies in their ability to automatically and quickly produce valid geometric representations of marine propellers (blades and hub) based on a small set of geometrically and physically meaningful parameters. This functionality is one of the major prerequisites when dealing with the problem of design/shape optimization of functional surfaces, such as marine propeller & wind turbine blades, that possess complex geometry and geometrically-sensitive performance. Further to this, we are also aiming at the generation of smooth, analysis-suitable instances, directly out of our parametric models, which will eliminate the time-consuming, labor-intensive and costly overhead of transforming a Computer Aided Design (CAD) model into an appropriate Computer Aided Engineering (CAE) model, commonly through an approximate mesh-model generation. The final requirement posed on these parametric models is their capacity in accurately reconstructing and representing existing propeller models. The two presented models employ a different basis for the representation of underlying free-form model surfaces, namely NURBS and T-splines, and these approaches are assessed and compared in detail with respect to the aforementioned parametric model requirements.

Original languageEnglish
Article number106595
JournalOcean Engineering
Volume192
DOIs
Publication statusPublished - Nov 15 2019

Keywords

  • Marine propellers representation
  • NURBS
  • Parametric Model
  • T-splines

ASJC Scopus subject areas

  • Environmental Engineering
  • Ocean Engineering

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