Mechanical Vibrations By J.K. Narwal
About this eBook
Preface to the Second Edition I am pleased to present the second edition of the book "Mechanical Vibrations". The entire book has been thoroughly revised and some additions have been made, to make the book still comprehensive and complete unit in all respects. I am thankful to the readers, who has adopted this as text or reference book. Numerous solved and unsolved examples have been added for the benefit of the student community and teaching faculty. The book contain 10 chapters. These chapters have been written to serve the present need and also the possible future enrichment of the syllabi of the various technologist institutes and universities in the country. Each chapter in this book consists of fundamentals theory, followed by a number of selected illustrative worked examples. Chapter 1 gives a review of the fundamentals of vibrations, elements of vibrating systems, classification of vibrations along with periodic motion analysis. Chapter 2 deals with the analysis of single degree of freedom, undamped, translational and torsional systems, floating bodies. In chapter 3 the concept of free damped vibrations of single degree of system is explained. Different types of damping are also explained in this chapter. Chapter 4 described the forced vibrations along with the basic formulations for rotating unbalance, harmonic motion of support, magnification factor, transmissibility and vibrations measuring instruments. In chapter 5 coordinates coupling, principal coordinates and orthogonality of modes of two degrees of freedom system is explained. This chapter prepares the basis for the next chapter. Chapter 6 explained the vibration analysis of several degrees of freedom system with the help of Dunkerley's Method, Rayleigh's method, Rayleigh Ritz Method, Holzer's Method, Matrix Method, Matrix Iteration Method, Stodola Method. Chapter 7 deals with torsional vibrations of single and two rotors along with geared system.
In chapter 8 whirling of shaft is explained in details. Chapter 9 provides an introduction to the theory of vibrations of continuous system. The vibration analysis of continuous systems including strings, bars, shafts, beams are examined. In chapter 10 response analysis of system subjected to transient vibration is studied. Laplace Transformation method, Runge-Kutta method are also explained. Appendices are also given in the end of the book. The book has been written in a simple and easy to follow language, so that even an average student can grasp the subject by self study. I wish to thank to the Hon'ble Management members, specially Sh. Ankush Bansal, Vice Chairman, Geeta Group of Institutions for writing foreword and providing me the environment for my work. It would have been very difficult to write without the enthusiastic support, advise and inspiration given to me by Dr.Aman Aggarwal Director, Geeta Engineering College, Panipat , Dr. J.S. Dilawari VP, Continental group of Institutions, Rajpura , Dr. K.L. Miglani Chief Administrative Officer , Prof. Mukesh Verma Head, Department of Mechanical Engineering, SSIET, Dera Bassi , and Prof. Deepak Juneja Head, Department of Mechanical Engineering, GEC . I am grateful for their kind support