Michael Schmiechen, Berlin
Papers on general subjects

Contents

• On models in science
• Notes related to my basic lectures
• On the identification of systems'
• On the estimation of spectra
• Centenary of VWS, the Berlin Model Basin, 2003

On models in science

The following paper concerns models in ship science
from a very general point of view:

• CFR St. Petersburg '92 paper
• CFR St. Petersburg '92 presentation
• VWS Berlin '97 paper
• VWS Berlin '97 presentation
  
  See also the following paper on the ITTC Symbols:
  
• MARTERM Brussels '98 paper
• MARTERM Brussels '98 presentation
  
  For ready reference the basic version of the
  
• ITTC Symbols and Terminology List 1993
  is available on this website.
  The current ITTC Symbols and Terminology List 2002
  will shortly be available on the
  
• Permanent ITTC website,
  being established by SNAME.
  
  Based on the work on the ITTC Symbols the following
  
• ITiS/STEP '95 concepts
  concerning a Partial Model Hydromechanics have been developed.
  Subsequently VWS Report No. 1251/95 has been published
  together with Frank Stolte, who followed up this work
  in his doctoral thesis, including sample implementations,
  defended at the Universität Rostock on July 02, 1999.
  
  Concerning stochastic and plausible reasoning
  see the discussion of Östergaard's STG paper
  on safety and reliability of ships' structures
  
• STG Berlin '99 discussion.
  
  The following are contributions to the discussion
  at the Workshop on 'Modellbildung in den Wissenschaften'
  at the Technische Universität Berlin on 20.01.2001:
  
• TU Berlin '01 oral presentation
  
• TU Berlin '01 written discussion.
  
  In the meantime a full report on the workshop has been edited
  by Prof. Horst Nowacki and published
  by the President of the Technical University Berlin.
  
  Last update: 2002.09.20
  
  Following the workshop mentioned the author continued
  the discussion on modelling with Prof. Horst Nowacki
  and his son Tim Nowacki.
  The discussion is documented in the
• e-mails exchanged with Horst Nowacki
  and in the
• statement of Tim Nowacki,
  
• letter to Tim Nowacki
  and in the
• reply by Tim Nowacki.
  
  Last additions: 2008.11.19
  
  The following open
• Letter of 24.07.2001
  to Prof. Renate Wahsner at the Max-Planck-Institut
  für Wissenschaftgeschichte in Berlin
  concerns concepts of classical mechanics.
  The discussion of her books 'Newton and Voltaire'
  and 'Messung als Begründung oder Vermittlung',
  published together with Horst-Heino von Borzeszkowski,
  is closely related to the work on Newton's Axioms
  by the author mentioned in the next section.
  
  Last update: 2002.09.20
  
  

Notes related to my basic lectures

For the convenience of students and colleagues the notes
related to my basic lectures on
'Principles, methods and problems in treating hydromechanical systems'
have been placed here, although not intended and ready for publication:

• Vorbesprechung, Einführung,
  
• Leitungsaufgaben,
  
• Begreifen, Beschreiben,
  
• System-Modelle,
  
• System-Modelle: Diskussion,
• Bilanz-Modelle.
  
  Among these the lectures on 'Begreifen und Beschreiben' and
  on the 'Theorie der System-Modelle' are considered to be fundamental.
  
  The theory of 'understanding and communicating' promoted in the lectures
  is perfectly in line with the theory of Michael Tomasello, who was awarded
  the Hegel-Prize for his fundamental work on 2009.12.16.
  
  Last update: 2010.01.26
  
  

On the identification of systems

In lectures at the Institut für Schiffbau und Meerestechnik
of the Universität Rostock, delivered on April 28, 1999,
the fundamentals concerning the identification of systems
and the estimation of spectra have been developed. The

• ISM Rostock '99 presentation
  on systems identification has recently been translated into English.
  No paper available yet.
  
  Last update: 2003.03.03
  
  

On the estimation of spectra
FTP: Fourier Transform Proper

Pre-requisite for many tasks, most prominently systems
identification, is the reliable estimation of spectra.
Details of an adequate routine to be found in the

• STG Hamburg '98 paper,
  the missing results to befound in the following files,
  
• STG Hamburg '98 presentation
• Presentation in english,
  further the subroutines developed and a special test case
  
• FTP subroutines.
  
• FTP test case..
  
  Various corrections, the last on January 17, '99,
  based on discussions with Professor Heinrich Söding,
  have been made after the presentation and distribution of
  the paper at the STG Meeting on Ships in Waves at Hamburg
  on September 17, 1998. A short version of the paper will
  be published in Jahrbuch STG 93 (1998), the full paper has
  been published in Schiffstechnik/Ship Technology Research
  Vol. 46 (1999) No. 2, pp 111-127, together with the discussion
  by Söding:
  
• Schiffstechnik '99 discussion
  
  

Centenary of VWS, the Berlin Model Basin, 2003

On Saturday November 22, 2003, the Committees
on the History of Naval Architecture and on Ship Hydrodynamics
of the Schiffbautechnische Gesellschaft (STG) have commemorated
the opening of the Versuchsanstalt für Wasserbau und Schiffbau,
VWS: the Berlin Model Basin, on the Schleuseninsel im Tiergarten
on July 07, 1903.

• The Programme
  was part of the 98th STG Annual Meeting.
  Opening addresses have been delivered by
  the President of the Technical University Berlin,
  the Chairman of the Schiffbautechnische Gesellschaft and
  the Director of the Bundesanstalt für Wasserbau.
  Notes on the history, the research and the jubilee meeting
  are to be found in
• General information
  distributed to the press.
  
  In addition to the papers presented the lists of
  STG Papers and Discussions, the formal contributions
  of members of the VWS staff to STG Meetings
  over the last century,
  VWS Mitteilungen, the formal publications of VWS,
  many of them doctoral dissertations,
  as well as additional dissertations, over the last century, and
  VWS Reports since 1952
  are part of the 'Festschrift' sold at the STG meeting as
  STG Document 3010 / VWS Mitteilung Heft 60, post mortem.
  The 'Festschrift' may be ordered from office@stg-online.de
  printed on paper or as .pdf file on CD at the price of 15 Euro.
  For more details see the Bibliography related to general subjects.
  
  For the contribution of the author: Beiträge der VWS zur Erforschung
  der Propulsion und Bewegungen von Schiffe, STG-Nr. 3010,
  VWS Mitteilungen Heft 60, post mortem, Berlin 2003, pp. 139-202,
  see Paper, Slides and Complete Presentation.
  
  A short summary on the jubilee meeting has been published
  in Schiff und Hafen 55 (2003) Nr.12, S. 51-52 under the title:
  Schmiechen, M.: Vor hundert Jahren Gründung der VWS in Berlin.
  
  Last update and additions: 2004.02.04
  
  

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