Rajiv Tiwari – författare

This book discusses various rotor systems, rotor dynamics and dynamics of rotating machinery problems through tutorials. Most of the covered problems can be derived and solved using hand calculations for deeper understanding of the subject. It correlates the examples provided in this book with real machinery where it can be used, and readers can analyse their own simple rotor system based on the variety of examples presented. All problems are supplemented by independent MATLAB® codes for exploring the subject with more ease with graphical outputs.Features:Rotordynamics terminology and phenomena are introduced with very simple rotor-bearing modelsIn-depth analytical dynamic analysis of rotors mounted in flexible bearings and the effect of gyroscopic effects in simple rotor systems are coveredOffers the possibility for the reader to reproduce the results and see how the equations are derived and solved in rotor dynamicsA few examples of simple rotor-bearing-coupling systems, rotor-bearing-foundation systems and two-spool rotors are coveredDirections are provided to extend the present exercise problems and their solutionsExamples are supplemented by MATLAB® codes with detailed solution stepsIncludes multiple-choice questions and their solutionsThis book is aimed at senior undergraduate/graduate students in mechanical engineering, as well as scientists and practice engineers from the field of rotordynamics, rotating machinery/turbomachinery and aerospace engineering.

This book discusses various rotor systems, rotor dynamics and dynamics of rotating machinery problems through tutorials. Most of the covered problems can be derived and solved using hand calculations for deeper understanding of the subject. It correlates the examples provided in this book with real machinery where it can be used, and readers can analyse their own simple rotor system based on the variety of examples presented. All problems are supplemented by independent MATLAB® codes for exploring the subject with more ease with graphical outputs.Features:Rotordynamics terminology and phenomena are introduced with very simple rotor-bearing modelsIn-depth analytical dynamic analysis of rotors mounted in flexible bearings and the effect of gyroscopic effects in simple rotor systems are coveredOffers the possibility for the reader to reproduce the results and see how the equations are derived and solved in rotor dynamicsA few examples of simple rotor-bearing-coupling systems, rotor-bearing-foundation systems and two-spool rotors are coveredDirections are provided to extend the present exercise problems and their solutionsExamples are supplemented by MATLAB® codes with detailed solution stepsIncludes multiple-choice questions and their solutionsThis book is aimed at senior undergraduate/graduate students in mechanical engineering, as well as scientists and practice engineers from the field of rotordynamics, rotating machinery/turbomachinery and aerospace engineering.

First volume of second edition of Rotor Systems book covers the analysis of simple rotors including rotor dynamic phenomena, gyroscopic effects and instabilities with the help of simple rotor-bearing models. It is biased towards the FEM analysis of complex rotors, both for torsional and transverse vibrations including transfer matrix method. Instabilities of the rotor system is covered for simple as well as complex rotor system considering bearings, seals, internal damping, unsymmetrical shaft stiffness and unsymmetrical rotor inertia. Covers rotor analysis from simple single degree of freedom to multi-degree of freedom with lots of solved examples Illustrates bearing and seals theory with perspective to rotor dynamics Discusses finite element method and transfer matrix methods for torsional and transverse vibration analysis Includes elemental equations derived from Euler-Bernoulli beam model, Rayleigh’s beam model and Timoshenko beam model Explores instability in rotor systems considering the hydrodynamic bearing and seal models, internal damping, unsymmetrical shaft stiffness and unsymmetrical rotor inertia This book is aimed at senior undergraduate/graduate students in mechanical engineering, rotordynamics, rotating machinery/turbomachinery, and related fields.

The second volume of the second edition of the Rotor Systems book focuses on identification techniques in rotor systems. It provides comprehensive coverage of unbalance identification and bearing dynamic parameter identification algorithms. Additionally, it explores the sensors and exciters used in rotor systems, along with the associated signal conditioning equipment. The book delves deeply into error analysis, offering detailed discussions to help readers understand measurement errors and their implications. Furthermore, the control of rotor systems is thoroughly addressed, including the analysis of both simple and multi-degree-of-freedom (multi-DOF) rotor systems. This edition also expands on experimentation related to the flexible balancing of rotors, providing practical insights into advanced rotor system control techniques.Covers balancing of rigid and flexible rotors with solved examples Describes various sensors and exciters used in rotor system and related signal conditioning equipment Explores signal processing with special focus on the full spectrum relevant for rotor response analysis Contains basic information on the condition monitoring of various types of rotating machinery Reviews control of rotor system includes analysis of simple and multi-DOF rotor system This book is aimed at senior undergraduate/graduate students in mechanical engineering, rotor dynamics, rotating machinery/turbomachinery, and related fields.

The purpose of this book is to give a basic understanding of rotor dynamics phenomena with the help of simple rotor models and subsequently, the modern analysis methods for real life rotor systems. This background will be helpful in the identification of rotor-bearing system parameters and its use in futuristic model-based condition monitoring and, fault diagnostics and prognostics. The book starts with introductory material for finite element methods and moves to linear and non-linear vibrations, continuous systems, vibration measurement techniques, signal processing and error analysis, general identification techniques in engineering systems, and MATLAB analysis of simple rotors.Key Features:• Covers both transfer matrix methods (TMM) and finite element methods (FEM)• Discusses transverse and torsional vibrations• Includes worked examples with simplicity of mathematical background and a modern numerical method approach• Explores the concepts of instability analysis and dynamic balancing• Provides a basic understanding of rotor dynamics phenomena with the help of simple rotor models including modern analysis methods for real life rotor systems.

Topics include concepts and methods in dynamics, dynamics of mechanical and structural systems, dynamics and control, condition monitoring, machinery and structural dynamics, rotor dynamics, experimental techniques, finite element model updating, industrial case studies, vibration control and energy harvesting, and MEMS.

Topics include concepts and methods in dynamics, dynamics of mechanical and structural systems, dynamics and control, condition monitoring, machinery and structural dynamics, rotor dynamics, experimental techniques, finite element model updating, industrial case studies, vibration control and energy harvesting, and MEMS.

It aims to provide a comprehensive and broad-spectrum picture of the state-of-the-art research and development in flexible electronics & applications, electric vehicle technology & infrastructures, materials & devices, battery management & intelligent systems.

It aims to provide a comprehensive and broad-spectrum picture of the state-of-the-art research and development in flexible electronics & applications, electric vehicle technology & infrastructures, materials & devices, battery management & intelligent systems.

This book presents the proceedings of the XVI International Conference on Vibration Engineering and Technology of Machinery (VETOMAC 2021). It gathers the latest advances, innovations, and applications in the field of vibration and technology of machinery. Topics include concepts and methods in dynamics, dynamics of mechanical and structural systems, dynamics and control, condition monitoring, machinery and structural dynamics, rotor dynamics, experimental techniques, finite element model updating, industrial case studies, vibration control and energy harvesting, and MEMS. The contributions, which were selected through a rigorous international peer-review process, share exciting ideas that will spur novel research directions and foster new multidisciplinary collaborations. The book is useful for the researchers, engineers and professionals working in the area of vibration engineering and technology of machinery.