Computational efficient flexible multibody dynamics with nonlinear loads and many modes
Computational efficient flexible multibody dynamics with nonlinear loads and many modes

Author: Wolfgang Witteveen

Publisher: GRIN Verlag

Published: 2022-04-28

Total Pages: 151

ISBN-13: 3346635384

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Professorial Dissertation from the year 2021 in the subject Physics - Mechanics, , language: English, abstract: The consideration of Finite Element (FE) structures in multibody simulation (MBS) has become an established method, especially when the number of force application points remains moderate. In recent years, a trend can be observed in which distributed loads are considered as well, such as those arising from the contact of two elastic bodies. For finely-meshed FE structures, this results in a large number of possible force application points. In such a case, conventional methods fail, leading to exorbitantly high computation times. In the last decade, approaches for the reduced computation of deformations inside distributed load application areas were introduced. Special approach vectors are used, called "local modes" here. These local modes lead to a reduction in the involved equations by several orders of magnitude. However, for very large potential load application areas, a large number of local modes is still required—for example, several thousand. Since each local mode leads to a differential equation, a fast numerical time integration is not possible with common methods. In this work, two methodological improvements are proposed for a fast and accurate time integration of such systems.

Flexible Multibody Dynamics
Flexible Multibody Dynamics

Author: Arun K. Banerjee

Publisher: John Wiley & Sons

Published: 2016-05-23

Total Pages: 312

ISBN-13: 1119015642

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Arun K. Banerjee is one of the foremost experts in the world on the subject of flexible multibody dynamics. This book describes how to build mathermatical models of multibody systems with elastic components. Examples of such systems include the human body itself, construction cranes, cares with trailers, helicopers, spacecraft deploying antennas, tethered satellites, and underwater maneuvering vehicles. This book provides methods of analysis of complex mechanical systems that can be simulated in less computer time than other methods. It equips the reader with knowledge of algorithms that provide accurate results in reduced simulation time.

Flexible Multibody Dynamics
Flexible Multibody Dynamics

Author: Arun Banerjee

Publisher: CRC Press

Published: 2022-05-18

Total Pages: 407

ISBN-13: 1000543897

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This book demonstrates how to formulate the equations of mechanical systems. Providing methods of analysis of complex mechanical systems, the book has a clear focus on efficiency, equipping the reader with knowledge of algorithms that provide accurate results in reduced simulation time. The book uses Kane’s method due to its efficiency, and the simple resulting equations it produces in comparison to other methods and extends it with algorithms such as order-n Kane’s method compensates for the errors of premature linearization, which are often inherent within vibrations modes found in a great deal of public domain software Describing how to build mathematical models of multibody systems with elastic components, the book applies this to systems such as construction cranes, trailers, helicopters, spacecraft, tethered satellites, and underwater vehicles It also looks at topics such as vibration, rocket dynamics, simulation of beams, deflection, and matrix formulation Flexible Multibody Dynamics will be of interest to students in mechanical engineering, aerospace engineering, applied mechanics and dynamics. It will also be of interest to industry professionals in aerospace engineering, mechanical engineering and construction engineering.

Flexible Multibody Dynamics
Flexible Multibody Dynamics

Author: Michel Géradin

Publisher: John Wiley & Sons

Published: 2001-03-05

Total Pages: 352

ISBN-13:

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Flexible Multibody Dynamics comprehensively describes the numerical modelling of flexible multibody dynamics systems in space and aircraft structures, vehicles, and mechanical systems. A rigorous approach is followed to handle finite rotations in 3D, with a thorough discussion of the different alternatives for parametrization. Modelling of flexible bodies is treated following the Finite Element technique, a novel aspect in multibody systems simulation. Moreover, this book provides extensive coverage of the formulation of a general purpose software for flexible multibody dynamics analysis, based on an exhaustive treatment of large rotations and finite element modelling, and incorporating useful reference material. Features include different solution techniques such as: * time integration of differential-algebraic equations * non-linear substructuring * continuation methods * nonlinear bifurcation analysis. In essence, this is an ideal text for senior undergraduates, postgraduates and professionals in mechanical and aeronautical engineering, as well as mechanical design engineers and researchers, and engineers working in areas such as kinematics and dynamics of deployable structures, vehicle dynamics and mechanical design.

Fundamentals of Multibody Dynamics
Fundamentals of Multibody Dynamics

Author: Farid Amirouche

Publisher: Springer Science & Business Media

Published: 2007-05-24

Total Pages: 692

ISBN-13: 0817644067

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This textbook – a result of the author’s many years of research and teaching – brings together diverse concepts of the versatile tool of multibody dynamics, combining the efforts of many researchers in the field of mechanics.

Dynamics of Multibody Systems
Dynamics of Multibody Systems

Author: Ahmed A. Shabana

Publisher: Cambridge University Press

Published: 2013-09-02

Total Pages: 397

ISBN-13: 1107435889

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This enhanced fourth edition of Dynamics of Multibody Systems includes an additional chapter that provides explanations of some of the fundamental issues addressed in the book, as well as new detailed derivations of some important problems. Many common mechanisms such as automobiles, space structures, robots and micromachines have mechanical and structural systems that consist of interconnected rigid and deformable components. The dynamics of these large-scale multibody systems are highly nonlinear, presenting complex problems that in most cases can only be solved with computer-based techniques. The book begins with a review of the basic ideas of kinematics and the dynamics of rigid and deformable bodies before moving on to more advanced topics and computer implementation. The book's wealth of examples and practical applications will be useful to graduate students, researchers and practising engineers working on a wide variety of flexible multibody systems.