15 Fakultätsübergreifend / Sonstige Einrichtung

Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/16

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Institute: search.filters.UBSInstitut.Institut für Technische und Numerische MechanikPublication Type: search.filters.UBSTyp.Zeitschriftenartikel

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Now showing 1 - 5 of 5
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    Closing conditions and reaction forces of multibody systems
    (1992) Schiehlen, Werner; Blajer, Wojciech
    Over the years a considerable effort has been focused on the development of methods and computational algorithms for mathematical modelling and simulation of multibody systems. The methods are mainly concerned with effective formulation and numerical treatment of the dynamical equations of a general multibody system.
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    Optimierung von Konstruktionsparametern am Beispiel ungefederter Fahrzeuge
    (1993) Langenbeck, Bernhard; Leister, Günter; Schiehlen, Werner; Kutzbach, Heinz-Dieter
    Am Beispiel eines Ackerschleppers wird ein Verfahren zur Optimierung dynamisch beanspruchter Konstruktionen vorgestellt, wobei das dynamische Verhalten mit Mehrkörpermodellen approximiert wird. Die Autoren beschreiben das Ersatzsystem und die Bewertungskriterien: die Optimierung läuft weitgehend automatisiert ab.
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    A projective criterion to the coordinate partitioning method for multibody dynamics
    (1994) Blajer, Wojciech; Schiehlen, Werner; Schirm, Walter
    The paper discusses some developments in the coordinate partitioning method for the dynamic analysis of constrained/closed-loop multibody systems. First, the method is reformulated to a more compact form. Then, a simple and reliable projective criterion for choosing the best coordinates from the redundant ones is proposed, and some advantages are pointed out that may arise in the method by applying inverse kinematics algorithms. Finally, the problem of determination ofphysical reactions of constraints and closing conditions is discussed. A four-bar linkage mechanism serves for an illustration of some aspects of the paper.
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    Local and global stability of a piecewise linear oscillator
    (1992) Kleczka, Michael; Kreuzer, Edwin; Schiehlen, Werner
    Machines and mechanisms with moving parts, subjected to periodic excitation, often show unexpected dynamic behaviour, and impacts due to their connection clearances may occur. The most simple mathematical model is a one degree-of-freedom nonlinear oscillator governed by a piecewise linear symmetric function to describe the restoring force. The systems response, which can be quite rich and complicated, is described in detail. Modern methods for a combined analytical and numerical analysis are used to study local and global bifurcation conditions, coexisting solutions and their associated domains of attraction.
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    Progress in integrated system analysis and design software for controlled vehicles
    (1993) Kortüm, Willi; Schiehlen, Werner; Hoffmann, M.
    This paper represents one of the results of the second Herbertov Workshop in 1992 on "Research Issues in Automotive Integrated Chassis Control Systems". It was decided to bring together engineers who are actively involved in current software developments to report on the progress in integrated system analysis and design software for controlled vehicles. Therefore, after mentioning some of the principal requirements for such software, the state-of-the-art is summarized. Promising recent research and software developments are described and the application of some of these concepts to an actively controlled vehicle with preview is discussed. Throughout the article the ideas of concurrent analysis and design strategies are emphasized.