بحث بعنوان Experimental Modal Analysis – (A Simple Non-Mathematical Presentation)

بحث بعنوان
Experimental Modal Analysis
(A Simple Non-Mathematical Presentation)
Peter Avitabile
Modal Analysis and Controls Laboratory
Mechanical Engineering Department
University of Massachusetts Lowell
Lowell, Massachusetts USA
Preface
Often times, people ask some simple questions regarding modal
analysis and how structures vibrate. Most times, it is impossible
to describe this simply and some of the basic underlying theory
needs to be addressed in order to fully explain some of these
concepts.
However, many times the theory is just a little too much to handle
and some of the concepts can be described without a rigorous
mathematical treatment. This document will attempt to explain
some concepts about how structures vibrate and the use of some
of the tools to solve structural dynamic problems. The intent of
this document is to simply identify how structures vibrate from a
non-mathematical perspective.
With this being said. Let’s start with the first question that is usually asked.
Summary
Some simple explanations were used to describe structural vibration
and the use of some of the available tools for the solution of
structural dynamic problems. This was all achieved without the use
of any detailed mathematical relationships. In order to better
understand more of the details of the data presented here, a
theoretical treatment of this material is necessary.

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