The first is to collect, in one document, various methods of constructing and representing dynamic mechanical models. For someone learning dynamics for the first time or for an experienced engineer who uses the tools infrequently, the options available for modeling can be daunting: transfer function form, zpk form, state space form, modal form, state space modal form, etc. Seeing all the methods in one book with background theory, an example problem and accompanying MATLAB code listing for each method helps to put these in perspective while making them readily available for quick reference. Also, having equation listings with their accompanying MATLAB codes is a good way to develop and reinforce MATLAB programming skills.

The second purpose is to help the reader develop a strong understanding of modal analysis where the total response of a system can be constructed by combinations of the individual modes of vibration.

The third purpose is to show how to take the results of large dynamic finite element models and build small MATLAB state space dynamic models for use in mechanical or servo-mechanical system models.

The book is written for use as a reference book in senior and early-graduate level vibration and servo courses as well as for practicing mechanical and servo engineers. It should be especially useful for engineers who have limited experience with state space. It assumes the reader has a background in basic vibration theory and elementary Laplace transforms.

It is assumed that the reader has access to MATLAB and the Control System Toolbox and is familiar with their basic use. Simulink, the MATLAB block diagram modeling tool, is used for several examples through the book but is not required.

Lumped mass and cantilever examples using the finite element program "ANSYS" are used. The last three chapters contain complete ANSYS/MATLAB dynamic analyses of SISO (Single Input Single Output) and MIMO (Multiple Input Multiple Output) disk drive actuator/suspension systems. Where ANSYS results are required for input into MATLAB models, they are available by download without having to run the ANSYS code. For those with access to ANSYS, input code are also available for download.

This book (ISBN 1-58488-205-0) can be purchased from amazon.com, amazon.co.uk or barnesandnoble.com.