Customer Reviews

Formulas for Natural Frequency and Mode Shape

5 star:		(5)
4 star:		(2)
3 star:		(1)
2 star:		(0)
1 star:		(0)

 

 

Any engineer who needs to perform stress and strain calculations knows the value of owning or having access to Roark & Young's classic reference for Formulas for Stress and Strain. Blevins' reference book is without a doubt the Roark and Young for vibration calculations. It is setup in much the same way as Roark & Young's, with many easy to understand tables with many cases. It covers the vibration mode shapes and natural frequencies of beams of many cross section and boundary condtions, shells, plates, and even fluid systems. I've had it for a couple years, and I still learn new things every time I use it. A must for any engineer who deals with vibration.

A must for mechanical engineers and the like who do a lot of design work with vibrating mechanical systems. This book contains many tables showing governing equations for various cases along with illustrations. Also gives plenty of references at chapter's end for more information on a subject.

The book is comprehensive since it discusses so many problem. The problem is the formula are not perfect. Sometimes they are over simplified and sometimes there are some mistakes. Overall it is a good reference book to have.

I think this book is the most useful reference for seismic qualification of structures and systems.

Every structural engineer should have this book. It really helps an engineer to find the behaviour of a system when small changes are performed on the system and you do not need to do any full analysis.

I received the book I ordered in a short period of time. I am pleased with the service provided by this bookseller.

First off, let me include a disclaimer. I purchased this book as a required text for a vibrations course, and was disappointed that its purpose is clearly not to teach the material. Brief explanations are given for each family of vibrational modes, so those with a good foundation in physics should be able to use this book as a reference guide without much outside information.

As a reference for natural frequency calculations, this book will go a long way. Its tables of mass-spring configurations and cross sections are the strong point, and in the 'bookshelf' application of providing the formulas to a designer, this text is accurate and reasonably broad in scope.

Unfortunately, format is in need of an overhaul. It is written in a style that probably appeared dated even in 1979, and appears to be essentially unchanged since that time. For example, the chapter on Finite Element Analysis programs still lists the software applications available in the early 1980's, despite the most recent revision date being 2001. FORTRAN anyone? Additionally, much page space is wasted on data tables for simple trig and calc formulas that any modern user could compute with a programmed calculator with signficantly more accurracy.

In summary, move on if you are a professor (or learner) looking for a good frequency text book. If you are an engineer looking for a broad but useful reference guide, this is probably still competitive.

It's a little known but useful compendium of examples.

Caution is warranted in using some of the examples.

Handy and useful.