ESD structural issue – UPstream device

Issue title: Main results from the GRIP project

Guest editors: Henk Prins

Article type: Research Article

Authors: Paboeuf, Stéphane^{; *} | Cassez, Antoine

Affiliations: Bureau Veritas, Boulevard Albert Einstein – CS32327, 44323 Nantes Cedex 3, France

Correspondence: [*] Corresponding author: Stéphane Paboeuf, Bureau Veritas, Boulevard Albert Einstein – CS32327, 44323 Nantes Cedex 3, France. Tels: +33 (0)2 40 20 62 39, +33 (0)6 70 91 51 12; E-mail: [email protected].

Abstract: Background:In order to design an Energy Saving Device (ESD), shipyards need to know the forces applied on the structure. Objectives:The objective is to develop a methodology able to evaluate the forces applied on an ESD in navigation conditions. Methods:From existing hydrodynamic potential codes, such as HydroStar, and tools developed by Bureau Veritas, the forces applied on an ESD have been evaluated and the methodology has been tested on a Pre-Swirl Stator structure. Results:The design process for an ESD has been described and tested including static analysis, dynamic analysis and fatigue analysis. Conclusions:The forces applied on an ESD can be estimated following a design process and a methodology developed in GRIP.

Keywords: Energy saving device, Pre-Swirl Stator, angle of attack, fins, force, lift, drag, ship motions

DOI: 10.3233/ISP-170135

Journal: International Shipbuilding Progress, vol. 63, no. 3-4, pp. 291-314, 2017