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Identification and separation of physical effects of coupled systems by using defined model abstractions

  • The thesis investigates at the computer aided simulation process for operational vibration analysis of complex coupled systems. As part of the internal methods project “Absolute Values” of the BMW Group, the thesis deals with the analysis of the structural dynamic interactions and excitation interactions. The overarching aim of the methods project is to predict the operational vibrations ofThe thesis investigates at the computer aided simulation process for operational vibration analysis of complex coupled systems. As part of the internal methods project “Absolute Values” of the BMW Group, the thesis deals with the analysis of the structural dynamic interactions and excitation interactions. The overarching aim of the methods project is to predict the operational vibrations of engines. Simulations are usually used to analyze technical aspects (e. g. operational vibrations, strength, ...) of single components in the industrial development. The boundary conditions of submodels are mostly based on experiences. So the interactions with neighboring components and systems are neglected. To get physically more realistic results but still efficient simulations, this work wants to support the engineer during the preprocessing phase by useful criteria. At first suitable abstraction levels based on the existing literature are defined to identify structural dynamic interactions and excitation interactions of coupled systems. So it is possible to separate different effects of the coupled subsystems. On this basis, criteria are derived to assess the influence of interactions between the considered systems. These criteria can be used during the preprocessing phase and help the engineer to build up efficient models with respect to the interactions with neighboring systems. The method was developed by using several models with different complexity levels. Furthermore, the method is proved for the application in the industrial environment by using the example of a current combustion engine.show moreshow less

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Metadaten
Document Type:Doctoral Thesis
Author: Rainer AbeltshauserGND
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.2860Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20170314-28600Cite-Link
Title Additional (German):Identifikation und Separation physikalischer Effekte von gekoppelten Systemen mittels definierter Modellabstraktionen
Series (Serial Number):ISM-Bericht // Institut für Strukturmechanik, Bauhaus-Universität Weimar (2017,1)
Advisor:Prof. Dr.-Ing. habil Carsten KönkeORCiDGND
Language:English
Date of Publication (online):2017/03/14
Year of first Publication:2017
Date of final exam:2016/09/13
Release Date:2017/03/14
Publishing Institution:Bauhaus-Universität Weimar
Granting Institution:Bauhaus-Universität Weimar, Fakultät Bauingenieurwesen
Institutes:Fakultät Bauingenieurwesen / Institut für Strukturmechanik
Tag:Modellbildung; Numerische Berechnung; Schwingungsanalyse; Simulationsprozess
GND Keyword:Strukturdynamik; Wechselwirkung; Schwingung; Berechnung
Dewey Decimal Classification:500 Naturwissenschaften und Mathematik
600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
BKL-Classification:30 Naturwissenschaften allgemein
50 Technik allgemein / 50.32 Dynamik, Schwingungslehre
52 Maschinenbau, Energietechnik, Fertigungstechnik
56 Bauwesen
Licence (German):License Logo Creative Commons 4.0 - Namensnennung-Keine kommerzielle Nutzung-Weitergabe unter gleichen Bedingungen (CC BY-NC-SA 4.0)