Dynamics of Rotors and Foundations

ISBN-13: 9783662028001 / Angielski / Miękka / 2012 / 384 str.

Erwin Kramer

Opis

Rotordynamics are of great importance in the design, manufacture and assembly of turbomachines as well as in ensuring their safe operation. Also important are the dynamics of the foundation and its interaction with the dynamics of the rotor. This book is divided into four parts. Following a presentation of the basic theory the dynamics of rotors supported on several bearings. The third part describes the dynamics of foundations of turbine line-outs and the calculations for a turbomachine coupled with its foundation. The last part includes a section on estimation procedures, a comprehensive presentation of the theoryand practice of rotors having a transverse crack, a section on the mathematical fundamentals and a description of the computer program used for the examples in the book. The book addresses both the practical engineer and the theoretician and should provide manufacturers, operators, university and polytechnic lecturers and students with an understanding of the vibrations of turbomachines. The results are described in such a way that they can be easily understood and applied.

Spis treści

1 Introduction.- 2 The one Degree of Freedom System.- 3 Shaft with Central Disc.- 4 Shaft with Non Central Disc.- 5 The Short and the Long Rotor.- 6 Oil-Film Bearings.- 7 Rotors with Oil-film Bearings.- 8 Vertical Rotors.- 9 Rolling-element Bearings.- 10 Shaft Seals.- 11 Steam Whirl.- 12 Internal Damping.- 13 Non-circular Shafts.- 14 Computer Model.- 15 Influence Coefficients.- 16 Equation of Motion.- 17 Results.- 18 Static Bearing Loads.- 19 Foundation.- 20 Rotor and Foundation.- 21 Rough Calculations.- 22 Bending Stresses in Rotors.- 23 Cracked Rotors.- 24 Solution of the Equation of Motion.- 25 Program MADYN.- References.