POLISH MARITIME RESEARCH Address of Publisher No 1(55) 2008 Vol 15 & Editor's Office
Total Page：16
File Type：pdf, Size：1020Kb
PUBLISHER : POLISH MARITIME RESEARCH Address of Publisher No 1(55) 2008 Vol 15 & Editor's Office : GDAŃSK UNIVERSITY OF TECHNOLOGY Faculty CONTENTS of Ocean Engineering & Ship Technology 3 JAN P. MICHALSKI ul. Narutowicza 11/12 A parametric method for evaluation of resistance of swath ships 80-952 Gdańsk, POLAND 11 M.R. JAVANMARDI, E. JAHANBAKHSH, tel.: +48 58 347 13 66 M.S. SEIF, H.SAYYAADI fax : +48 58 341 13 66 Hydrodynamic Analysis of Trimaran Vessels e-mail : offi[email protected] 19 JANUSZ KOLENDA Account number : Dissipation energy in viscoelastic solids under multiaxial loads BANK ZACHODNI WBK S.A. 29 MONIKA BORTNOWSKA I Oddział w Gdańsku 41 1090 1098 0000 0000 0901 5569 Research on preliminary concept of ship intended for mining poly-metallic concretions from sea bed Editorial Staff : 37 CZESŁAW DYMARSKI Kazimierz Kempa Editor in Chief e-mail : [email protected] Research on a control system based on stepping motor Przemysław Wierzchowski Scientific Editor for ship’s controllable pitch propellers e-mail : [email protected] 42 PIOTR KAMIŃSKI, WIESŁAW TAREŁKO Jan Michalski Editor for review matters Management of assignment of operational tasks realized e-mail : [email protected] in ship power plant Tadeusz Borzęcki Editor for international relations 52 ZBIGNIEW KORCZEWSKI e-mail : [email protected] Piotr Bzura Managing Editor Statistical analysis of sea accidents e-mail : [email protected] and breakdowns in the Polish Navy Cezary Spigarski Computer Design 56 KRZYSZTOF SYCHTA e-mail : biuro@oficynamorska.pl The analysis of research results concerning heat release rates of ship materials with regard Domestic price : single issue : 20 zł to dynamic parameters of the research station 60 JANUSZ KOZAK Prices for abroad : Elastic protection coatings for ship tanks single issue : - in Europe EURO 15 to increase environment protection level - overseas US$ 20 65 MAREK JAKUBOWSKI, ŁUKASZ MODELSKI, MAREK PODBERESKI ISSN 1233-2585 Influence of cathodic-protection-induced hydrogenation on mechanical properties of two ship hull plate steels 72 ADAM OLEJNIK Visual identification of underwater objects using POLISH a ROV-type vehicle: “Graf Zeppelin” wreck investigation MARITIME 80 RYSZARD KŁOS Classification of the underwater diving equipment RESEARCH The papers published in this issue have been reviewed by :Photo : C. Spigarski in internet Prof. A. Brandowski ; Prof. J. Girtler ; Prof. J. Lisowski www.bg.pg.gda.pl/pmr.html Prof. K. Rosochowicz ; Prof. Z. Starczewski Prof. T. Szelangiewicz Editorial POLISH MARITIME RESEARCH is a scientific journal of worldwide circulation. The journal appears as a quarterly four times a year. The first issue of it was published in September 1994. Its main aim is to present original, innovative scientific ideas and Research & Development achievements in the field of : Engineering, Computing & Technology, Mechanical Engineering, which could find applications in the broad domain of maritime economy. Hence there are published papers which concern methods of the designing, manufacturing and operating processes of such technical objects and devices as : ships, port equipment, ocean engineering units, underwater vehicles and equipment as well as harbour facilities, with accounting for marine environment protection. The Editors of POLISH MARITIME RESEARCH make also efforts to present problems dealing with education of engineers and scientific and teaching personnel. As a rule, the basic papers are supplemented by information on conferences , important scientific events as well as cooperation in carrying out interna- tional scientific research projects. Scientific Board Chairman : Prof. JERZY GIRTLER - Gdańsk University of Technology, Poland Vice-chairman : Prof. ANTONI JANKOWSKI - Institute of Aeronautics, Poland Vice-chairman : Prof. MIROSŁAW L. WYSZYŃSKI - University of Birmingham, United Kingdom Dr POUL ANDERSEN Prof. STANISŁAW GUCMA Prof. YASUHIKO OHTA Technical University Maritime University of Szczecin Nagoya Institute of Technology of Denmark Poland Japan Denmark Dr MEHMET ATLAR Prof. ANTONI ISKRA Prof. ANTONI K. OPPENHEIM University of Newcastle Poznań University University of California United Kingdom of Technology Berkeley, CA Poland USA Prof. GÖRAN BARK Prof. JAN KICIŃSKI Prof. KRZYSZTOF ROSOCHOWICZ Chalmers University Institute of Fluid-Flow Machinery Gdańsk University of Technology of PASci of Technology Sweden Poland Poland Prof. SERGEY BARSUKOV Prof. ZYGMUNT KITOWSKI Dr YOSHIO SATO Army Institute of Odessa Naval University National Traffic Safety Ukraine Poland and Environment Laboratory Japan Prof. MUSTAFA BAYHAN Prof. JAN KULCZYK Prof. KLAUS SCHIER Süleyman Demirel University Wrocław University of Technology University of Applied Sciences Turkey Poland Germany Prof. MAREK DZIDA Prof. NICOS LADOMMATOS Prof. FREDERICK STERN Gdańsk University University College London University of Iowa, of Technology United Kingdom IA, USA Poland Prof. ODD M. FALTINSEN Prof. JÓZEF LISOWSKI Prof. JÓZEF SZALA Norwegian University Gdynia Maritime University Bydgoszcz University of Science and Technology Poland of Technology and Agriculture Norway Poland Prof. PATRICK V. FARRELL Prof. JERZY MATUSIAK Prof. TADEUSZ SZELANGIEWICZ University of Wisconsin Helsinki University Technical University Madison, WI of Technology of Szczecin USA Finland Poland Prof. WOLFGANG FRICKE Prof. EUGEN NEGRUS Prof. WITALIJ SZCZAGIN Technical University University of Bucharest State Technical University Hamburg-Harburg Romania of Kaliningrad Germany Russia Prof. BORIS TIKHOMIROV Prof. DRACOS VASSALOS State Marine University University of Glasgow of St. Petersburg and Strathclyde Russia United Kingdom POLISH MARITIME RESEARCH 1(55) 2008 Vol 15; pp. 3-10 DOI: 10.2478/v10012-007-0045-6 A parametric method for evaluation of resistance of swath ships Jan P. Michalski, Gdańsk University of Technology Polish Naval University ABSTRACT This paper contains formulation of a parametric method for evaluation of SWATH ship’s hull resistance. The method was elaborated on the basis of numerical calculation results obtained by using structural methods based on ship hydrodynamic theory and performed for sufficiently large series of body forms with systematically changing ship form parameters. Also, results of verifying investigations dealing with features of the method in question are presented by comparing the obtained resistance characteristics with those achieved by other authors as well as with ship model experimental test results. The obtained results of the verification indicate that the elaborated method can be useful in preliminary designing the SWATH ships. Keywords: SWATH ships design method, SWATH ships resistance evaluation method. INTRODUCTION SWATH ship hull consists of two slender lower hulls (submerged floats) of an elongated spindle-like form, which support deck’s The problem of ship hull resistance evaluation by using box platform by means of one or two slim upper hulls (columns) structural models based on ship hydrodynamic theory belongs on each side of ship plane of symmetry, as shown in Fig. 1. On to the specially difficult application tasks in shipbuilding, that the upper deck a superstructure of a size and arrangement suitable results from highly complex mathematical relations describing to a given ship operational function, is usually provided. Value the interaction mechanism of moving ship and surrounding of design ship draught should ensure an appropriate draught of water. Such calculations are performed with the use of computer floats, low design water-plane area and appropriate clearance methods such as e.g. the commercial software SHIPFLOW between water level and lower deck plating. [1, 2] or those elaborated on the basis of own numerical algorithms, e.g. [3, 4, 5, 6], which require a large outlay of numerical calculations [7], and whose results are loaded by a low numerical stability and reliability [8]. Moreover the methods require a large labour outlay for preparation of an appropriate set of input data for realization of the calculations, mainly the data describing ship body form geometry and water region surrounding the hull. Predictions of hull resistance characteristics obtained from structural methods are still less reliable and accurate than those resulting from experimental tests of geometrically similar hull models. The theoretical methods find their application in research and study projects to get ship resistance predictions Fig. 1. Draft configuration of underwater part of SWATH ship hull. in preliminary design stage, whose results are then verified by means of model tests in further design stage. Both the ratios of main dimensions and body form The acronym SWATH (Small Water-plane Area Twin configuration of SWATH ships much differ from corresponding Hull) stands for an innovative concept of ship of a specific parameters of single-hull ships, that results in many configuration: its hull consists of two parts distant to each other consequences in the form of various technical features, and formed in such a way as to obtain the ratio of design water- hydrodynamic, strength and functional qualities. It concerns plane area and hull volumetric displacement much smaller than e.g. relations between ship main dimensions and its resistance that in the case of single hull ships or classical catamarans. The characteristics or seakeeping qualities. Today knowledge on the POLISH MARITIME RESEARCH, No 1/2008 3 relations is rather modest. Any extrapolation of the gathered V knowledge on classical single-hull ships to SWATH ships is p (1) = 2 not reasonable