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Machinery Vibration and Rotordynamics
By: John M. Vance , Fouad Y. Y. ZeidaneBook Publisher: John Wiley & Sons
Imprint: Wiley
Format: ePub Encrypted (DRM)
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An in-depth analysis of machine vibration in rotating machinery
Whether it's a compressor on an offshore platform, a turbocharger in a truck or automobile, or a turbine in a jet airplane, rotating machinery is the driving force behind almost anything that produces or uses energy. Counted on daily to perform any number of vital societal tasks, turbomachinery uses high rotational speeds to produce amazing amounts of power efficiently. The key to increasing its longevity, efficiency, and reliability lies in the examination of rotor vibration and bearing dynamics, a field called rotordynamics.
A valuable textbook for beginners as well as a handy reference for experts, Machinery Vibration and Rotordynamics is teeming with rich technical detail and real-world examples geared toward the study of machine vibration. A logical progression of information covers essential fundamentals, in-depth case studies, and the latest analytical tools used for predicting and preventing damage in rotating machinery. Machinery Vibration and Rotordynamics :
Combines rotordynamics with the applications of machinery vibration in a single volume
Includes case studies of vibration problems in several different types of machines as well as computer simulation models used in industry
Contains fundamental physical phenomena, mathematical and computational aspects, practical hardware considerations, troubleshooting, and instrumentation and measurement techniques
For students interested in entering this highly specialized field of study, as well as professionals seeking to expand their knowledge base, Machinery Vibration and Rotordynamics will serve as the one book they will come to rely upon consistently.
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| Title of Technology eBook: Machinery Vibration and Rotordynamics | |
| Release Date: 06-17-2010 | |
| Publisher: Wiley |
This eBook download is available in the following formats:
| Parent title | Machinery Vibration and Rotordynamics |
|---|---|
| Encrypted (DRM) | Yes |
| SKU | 9780470916087 |
| File size | 5740 |
| Security | n/a |
| Printing | Not allowed |
| Copying | Not allowed |
| Read aloud | No Sys requirements Download reader |
| Devices | Samsung Tablet, Apple Ipad & Iphone, Barnes & Noble Nook, Kobo eReader, Aluratek Libre, Iliad, Nokia, Blackberry, Hanlin |
| Note | Excellent navigation features are available via Adobe such as bookmarks and a quick access table of contents. Text search is easily accessible. An Adobe DRM-protected file is different than a pdf file in that it uses Adobe DRM (Digital Rights Management) technology, which authors and publishers use to protect their content from illegal online distribution and to set certain privileges such as restrictions on copying and printing. |
Machinery Vibration and Rotordynamics
Chapter One
FUNDAMENTALS OF MACHINE VIBRATION AND CLASSICAL SOLUTIONS
This chapter is focused on practical applications of mechanical vibrations theory. The reader may want to supplement the chapter with one of the vibration textbooks in the reference list at the end of the chapter if he has no background in the theory.
THE MAIN SOURCES OF VIBRATION IN MACHINERY
The most common sources of vibration in machinery are related to the inertia of moving parts in the machine. Some parts have a reciprocating motion, accelerating back and forth. In such a case Newton's laws require a force to accelerate the mass and also require that the force be reacted to the frame of the machine. The forces are usually periodic and therefore produce periodic displacements observed as vibration. For example, the piston motion in the slider-crank mechanism of Fig. 1-1 has a fundamental frequency equal to the crankshaft speed but also has higher frequencies (harmonics). The dominant harmonic is twice crankshaft speed (2nd harmonic). Figure 1-2a shows the displacement of the piston. It looks almost like a sine wave but it is slightly distorted by higher-order harmonics due to the nonlinear kinematics of the mechanism. Fig. 1-2b shows the acceleration of the piston, where the 2nd harmonic is amplified since the acceleration amplitude is frequency-squared times the displacement amplitude.
Even without reciprocating parts, most machines have rotating shafts and wheels that cannot be perfectly b
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