Tag: Rigid

Rigid Finite Element Method in Analysis of Dynamics of Offshore Structures


Free Download Rigid Finite Element Method in Analysis of Dynamics of Offshore Structures By Edmund Wittbrodt, Marek Szczotka, Andrzej Maczyński, Stanisław Wojciech (auth.)
2013 | 252 Pages | ISBN: 3642298850 | PDF | 8 MB
This book describes new methods developed for modelling dynamics of machines commonly used in the offshore industry. These methods are based both on the rigid finite element method, used for the description of link deformations, and on homogeneous transformations and joint coordinates, which is applied to the modelling of multibody system dynamics. In this monograph, the bases of the rigid finite element method and homogeneous transformations are introduced. Selected models for modelling dynamics of offshore devices are then verified both by using commercial software, based on the finite element method, as well as by using additional methods. Examples of mathematical models of offshore machines, such as a gantry crane for Blowout-Preventer (BOP) valve block transportation, a pedestal crane with shock absorber, and pipe laying machinery are presented. Selected problems of control in offshore machinery as well as dynamic optimization in device control are also discussed. Additionally, numerical simulations of pipe-laying operations taking active reel drive into account are shown.

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Structure and Dynamics of Non-Rigid Molecular Systems


Free Download Structure and Dynamics of Non-Rigid Molecular Systems By Alexander I. Boldyrev (auth.), Yves G. Smeyers (eds.)
1995 | 309 Pages | ISBN: 9401044643 | PDF | 25 MB
This volume contains a selection of scientific papers related to the structure and dynamics of non-rigid molecules. This frontline topic was born a few decades ago, when Longuet-Higgins proposed his famous theory of Molecular Symmetry Groups (Mol. Phys. 6, (1962) 457). Unfortunately, since this early paper, very few publications have been devoted to the study of non-rigid molecules. Let us mention some books which dedicate some chapters to them: Induced Representations in Crystals and Molecules, by S. L. Altmann, Academic ✅Publishers, 1977; Molecular Symmetry and Spectroscopy, by P. R. Bunker, Academic ✅Publishers, 1979; and finally Large Amplitude Motion in Molecules, Vols. I and II, by several authors, Springer Verlag, 1979. More recently an International Symposium on Non-Rigid Molecules was held in Paris, France, from 1-7 July 1982, the proceedings of which were published in the volume entitled Symmetries and Properties of Non-Rigid Molecules. A Comprehensive Survey, edited by J. Maruani et al., Elsevier, 1983. Finally, we should mention the very specialized work The Permutational Approach to Dynamic Stereochemistry, by J. Brocas et al., McGraw-Hill, 1983. The purpose of this book is to fill in this information on the structure and dynamics of non-rigid systems. To this aim, we have gathered a collection of recent papers written by the most qualified specialists in the world, covering a large field from van der Waals molecules to inorganic complexes and organic polyrotor molecules, as well as considering statistical and dynamic aspects.

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Mechanics of Fluid Deformations Rigid Body Rotations and Plane Channel Flow Stability (World Scientific)


Free Download Mechanics of Fluid Deformations: Rigid Body Rotations and Plane Channel Flow Stability (World Scientific) by Oleg V Troshkin
English | April 8, 2021 | ISBN: 981123051X | 284 pages | MOBI | 11 Mb
This book covers a new approach to analyzing hydrodynamic stability.With the use of standard remedies of functional analysis, theory of boundary value problems and infinitesimal Lie algebras, it is shown in the book that large vortex mushrooms of an ideal incompressible fluid in a vertical strip behind a water hammer proves to be 2D (plane-parallel) nonlinear (for arbitrary disturbances of initial velocities) and long wave stable. It is one of the many examples provided in the book discussing hydrodynamic stability.

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Mechanics of Fluid Deformations Rigid Body Rotations and Plane Channel Flow Stability (World Scientific)


Free Download Mechanics of Fluid Deformations: Rigid Body Rotations and Plane Channel Flow Stability (World Scientific) by Oleg V Troshkin
English | April 8, 2021 | ISBN: 981123051X | 284 pages | MOBI | 11 Mb
This book covers a new approach to analyzing hydrodynamic stability.With the use of standard remedies of functional analysis, theory of boundary value problems and infinitesimal Lie algebras, it is shown in the book that large vortex mushrooms of an ideal incompressible fluid in a vertical strip behind a water hammer proves to be 2D (plane-parallel) nonlinear (for arbitrary disturbances of initial velocities) and long wave stable. It is one of the many examples provided in the book discussing hydrodynamic stability.

(more…)

Corrective Osteotomies for Rigid Spinal Deformities


Free Download Corrective Osteotomies for Rigid Spinal Deformities
English | 2023 | ISBN: 3131730811 | 318 Pages | PDF (True) | 78 MB
Despite attempts to detect and treat spine deformities early in younger and older populations, spine deformity surgeons encounter a wide array of complex spine pathologies in patients across the age and pathology continuum. Corrective Osteotomies for Rigid Spinal Deformities, edited by world-renowned spinal deformity specialists Leon Kaplan and Lawrence G. Lenke, features contributions from an impressive group of global experts. The superbly written compendium highlights inherent challenges of managing rigid spinal deformities and provides a wide array of safe and optimal treatment solutions.

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Rigid Audio Interference KONTAKT


Free Download Rigid Audio Interference KONTAKT | 1.45 GB
Interference by Rigid Audio is the ultimate drum and loop sequencer. Whether you need to create inspiring backing grooves, cinematic underscores, or creative musical phrases, Interference has you covered.

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