Ulf Döring's research while affiliated with Technische Universität Ilmenau and other places

Publications (37)

Book
Full-text available
Dieser Tagungsband enthält die Beiträge des 13. Kolloquiums Getriebetechnik. Die Getriebetechnik als Querschnittswissenschaft findet ihre Anwendung in vielfältigen Teilbereichen des Ingenieurwesens, wie Robotik und Medizintechnik. Sie hilft dort grundsätzlich bei der Lösung von Aufgaben der Bewegungs- und Kraftübertragung. Diese thematische Breit...
Chapter
Technical documents such as historical patents are important cultural assets and part of our cultural and historical heritage. The Geheimes Staatsarchiv Preußischer Kulturbesitz Berlin is an archive with thousands of historic Prussian patents from the 19th century. These are examples of the beginning of the German industrialization. The documents c...
Chapter
This paper describes the Thesaurus Concept Editor (Thedi) implemented as a part of the Digital Mechanism and Gear Library (DMG-Lib), a digital library containing information about mechanisms and gears. Thedi is introduced as new working environment for the IFToMM Permanent Commission (PC) for Standardization of Terminology. This allows the PC to wo...
Chapter
This document describes an online tool, which supports different synchronized views onto the same algorithm in parallel, e.g. structograms (Nassi–Shneiderman diagrams), Java code and the state of used variables. It can also animate the program and data flow. This is essential for self-controlled learning especially for novice programmers. Students...
Chapter
The Geheimes Staatsarchiv Preußischer Kulturbesitz Berlin is an archive with thousands of patents from the 19th century. The documents include patent texts and figures as well as the comments of the reviewers. The paper is about first common activities of the archive and the Ilmenau University of Technology to make the documents available to a broa...
Chapter
The article starts with a presentation of a straight-forward global root finding algorithm featuring Newton-Raphson-like local root finding to find all solutions. After an analysis of the causes why it may fail, strategies are given to improve root finding. The strategies are tested and statistically analyzed with respect to two practical mechanica...
Chapter
In 2011 the thinkMOTION project started. It focuses on making knowledge in the field of motion systems accessible to a broad public. The collected material covers forgotten treasures as well as current day research results. Different kinds of representation are supported, most notably books, articles, patents, images, videos, interactive animations...
Preprint
Full-text available
Das besondere Interesse beim diesjährigen Kolloquium gilt einerseits den aktuellen und zukünftigen Lehrinhalte im Themengebiet der ungleichmäßig übersetzenden Getriebe und wie sich diese nach der fast vollständigen Umstellung der deutschen Studiengänge auf das zweigliedrige Bachelor und Masterstudium darstellen. Andererseits darf man ebenso auf die...
Chapter
The most important aim of the IFToMM is “to promote research and development in the field of Machines and Mechanisms by theoretical and experimental methods, along with their practical application” (see article 2.1 of the statutes [12]). This is strongly connected with access to current knowledge, experience and skills in the field of mechanism and...
Conference Paper
We are presenting a digital engineering library – the Digital Mechanism and Gear Library (DMG-Lib). The existing worldwide knowledge in form of books, drawings, physical models etc. is mostly scattered, difficult to access and does not comply with today’s requirements concerning a rapid information retrieval. Therefore the development of a digital,...
Chapter
Full-text available
Dr.-Ing. E.h. Kurt Hain (1908–1995) belongs to the pioneers of Applied Kinematics in Germany. He published an extensive scientific work which contains 13 books and more than 380 papers on nearly all partial fields of kinematics. The paper gives a survey of the lifework of Kurt Hain and describes a national research project to store and to provide h...
Article
This paper presents a solution repository that is part of the "Digital Mechanism and Gear Library" (DMG-Lib). The aim of this project is to develop a new digital, internet-based library (www.dmg-lib.org) to collect, preserve and present the knowledge of mechanism and gear science. Using the state-of-the-art in the field of interaction, metadata and...
Article
Motion systems are important parts of technical products. Those are often composed using mechanisms and gears. However, the worldwide existing knowledge about mechanisms in theory and practice is mostly scattered and only fragmentarily accessible for users like students, engineers and scientists. It does not comply with today's requirements concern...
Article
Full-text available
Mechanisms and gears are an essential part of technical products in industry. However, the worldwide existing knowledge about mechanisms in theory and practice is mostly scattered and only fragmentarily accessible for users like students, engineers and scientist. It does not comply with today's requirements concerning a rapid information retrieval....
Chapter
In the past it was often adequate to assemble an overall system from separately developed and optimized parts. However, recent developments in engineering show the need to integrate mechanical, optical, electrical, electronical and software components. This new quality of interdisciplinary collaboration requires new computeraided, phase- and domain...
Article
The DMG-Lib is an interdisciplinary project that was started to collect and preserve knowledge concerning mechanical devices. In contrast to common digital libraries an efficient problem oriented information retrieval will be supported. The realization of the long-term project is only possible by means of extensive employment of computational kinem...
Article
The Digital Mechanism and Gear Library is a research information center, founded by the German Research Foundation (DFG). The project was started to collect, preserve, cross-link and present knowledge concerning mechanisms and gears in an internet based library. It is based on content provided by experts, e.g. functional models, catalogs, technical...
Conference Paper
Full-text available
Efficient 3D CAD systems allow parametric modeling, which especially facilitates the application of calculation and optimization tools in later phases (embodiment and detail design) of the design process. The conceptual phase has a special importance. In order to determine one or more favorable principles and according parameters, which fulfill the...
Chapter
We describe a new approach for geometric shape design which his centered around a 2D and 3D geometric constraint solver. This approach enables so-called non-history based modeling providing more flexibility to the designer. The modeler combines geometric and topological constraints, direct manipulation, sketching and Boolean set operations.
Article
Solutions for many present-day problems in the field of motion systems can be derived from historical knowledge. Unfortunately, large portions of this knowledge are difficult to access, since it is scattered over the world's libraries, museums, companies, universities, and other institutions. Also, it is stored in various forms, like textual descri...
Article
Die Digitale Mechanismen- und Getriebebibliothek (Kurzbezeichnung: DMG-Lib) ist ein im Aufbau befindliches Leistungszentrum für Forschungsinformation mit dem Ziel der Sammlung, Bewahrung, Vernetzung und Präsentation des umfangreichen Wissens über Mechanismen und Getriebe. Dazu werden heterogene Informationsquellen wie Literatur, körperliche Modelle...
Article
Full-text available
Mechanisms and gears are an essential part of technical products in industry. However, the worldwide existing knowledge about mechanisms in theory and practice is mostly scattered and only fragmentarily accessible for users like students, engineers and scientist. It does not comply with today's requirements concerning a rapid information retrieval....
Article
Full-text available
The paper presents a workflow as well as an according technical infrastructure for the maintenance of the so called IFToMM dictionary. Besides the currently maintained lists of terms and definitions in four different languages the authors suggest to support some extensions of the dictionary. For users these extensions cover new languages, links to...

Citations

... Between command and parameters an ID can be given, which will be used to reference the generated entities later. Refer to [4] for a more detailed description of the syntax of the modeling syntax. Tables 1 and 2 show the description of simple symbols which are needed to model planar linkages. ...
... This enables the user to test the functionality of the current state immediately, for instance by executing mouse drags or starting further calculations (e.g. kinematics or static calculations) based on the evaluated constraint model [5]. ...
... The experience we gained from investigating methods for interactive constraint-based manipulations of solids with planar and analytic surfaces [4,8] led to the idea to extend this approach to freeform surface models: Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. ...
... In this context, activities for a web-based workflow and infrastructure for the maintenance of the IFToMM Dictionary (as described in [17]) could lead to a more general tool for the translation of textual information in online repositories for motion systems solutions. ...
... Until 2012, when the department moved out due to refurbishment of the building the showcases with the different mechanism models on display still served this purpose and have been the basis of several activities, such as Mechanism description [34], Mechanism encyclopedia [35] and the project DMG-Lib [36]. ...
... The application of this project is guided by the project developed by Doring et al. [9] that collects and preserves knowledge using mechanical devices. This project allows students and faculty to investigate some of the concepts related to mechanisms by exploring the website, which includes theory, drawings, animations, and history of mechanical devices and their inventors. ...
... The experience we gained from investigating methods for interactive constraint-based manipulations of solids with planar and analytic surfaces [4,8] led to the idea to extend this approach to freeform surface models: Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. ...
... We are currently involved in the DMGLib (Digital Mechanism and Gear Library, http://www.dmg-lib.org) project [8]. The objective of DMGLib is to provide a digital library for mechanical engineering. ...