TUHH Open Research
Help
  • Log In
    New user? Click here to register.Have you forgotten your password?
  • English
  • Deutsch
  • Communities & Collections
  • Publications
  • Research Data
  • People
  • Institutions
  • Projects
  • Statistics
  1. Home
  2. TUHH
  3. Publication References
  4. Calculation of the hydrostatic and structural integrity of docking sequences
 
Options

Calculation of the hydrostatic and structural integrity of docking sequences

Publikationstyp
Conference Paper
Date Issued
2017-09-25
Sprache
English
Author(s)
Dankowski, Hendrik  
Weltzien, Charlott  
Institut
Entwerfen von Schiffen und Schiffssicherheit M-6  
TORE-URI
http://hdl.handle.net/11420/4803
First published in
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE  
Number in series
7B
Citation
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE (7B-2017): (2017)
Contribution to Conference
ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017  
Publisher DOI
10.1115/OMAE2017-61368
Publisher
The American Society of Mechanical Engineers
The conditions of competition within ship yards are changing. The current market situation requires a new orientation of the Pella Sietas ship yard with flexible solutions for new ship types. Complex, heavy and ice-going ships show one way for future designs. In view of all the technical difficulties involved in such challenging projects, the first question must be how to handle these heavy constructions with the yards building facilities available. The Pella Sietas yard is using a floating platform for newbuildings. The question arises whether or not this platform is still capable and suited for this kind of ship types. The docking procedure is a complex multi-body interaction that copes with hydrostatic and structural challenges. The docking operation is regulated by the sequence of flooding and emptying ballast water tanks of the dock. At any time of this dynamic operation the hydrostatic stable equilibrium of ship and dock must be ensured. When the ship becomes afloat the keel block system transfers the ships weight on the structure of the dock. It must be ensured that the resulting tensions and deformations do not exceed the maximum permissible values. This paper describes a fast calculation method that determines the mentioned hydrostatic as well as the structural investigations during the docking procedures. The method implies a numerical progressive flooding simulation that calculates the hydrostatics of ship and dock under consideration of their interaction by dock blocks together with the ballasting sequence in the time domain. Furthermore it calculates the block forces distribution by applying the deformation method. In the calculation process ship and dock are modeled as Timoshenko beams and the dock blocks as nonlinear spring elements. Moreover the shear force and bending moment distributions of ship and dock are calculated and the deflection lines are presented. Therefore, the described method enables the ship yard to evaluate quickly the possibility of building new types of ships on the existing building platform and allows evaluating which modifications are useful to enlarge the capacity of the platform even further. It provides a useful tool to minimize local and global stresses and deformations of the interacting bodies during the whole docking procedure by fast optimization of the block system arrangement and the ballasting sequences. As a result the described method could expand the range of flexibility of a given floating dock structure. In addition, the whole hydrostatic and structural integrity of docking sequences can be computed faster and more accurate even at a very early project stage.
DDC Class
600: Technik
Funding(s)
Methodenbanksystem für Offshore- und Polar-Systeme  
More Funding Information
This investigation has been carried out within the research project MOPS, a project to develop new numerical methods for offshore and polar ships. Special thanks are given to the Federal Ministry of Economics and Technology (BMWi) for funding and supporting this research project.
TUHH
Weiterführende Links
  • Contact
  • Send Feedback
  • Cookie settings
  • Privacy policy
  • Impress
DSpace Software

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science
Design by effective webwork GmbH

  • Deutsche NationalbibliothekDeutsche Nationalbibliothek
  • ORCiD Member OrganizationORCiD Member Organization
  • DataCiteDataCite
  • Re3DataRe3Data
  • OpenDOAROpenDOAR
  • OpenAireOpenAire
  • BASE Bielefeld Academic Search EngineBASE Bielefeld Academic Search Engine
Feedback