EXPERIMENTAL MODAL ANALYSIS, STRUCTURAL MODIFICATIONS AND FEM ANALYSIS - COMBINING FORCES ON A DESKTOP COMPUTER

摘要

This paper discusses structural dynamics technology in terms of its two most important parts; the experimental portion which is referred to as experimental modal analysis, and the analytical portion, which is referred to as Finite Element Analysis (FEA) or Finite Element Modeling (FEM). It discusses how experimental and analytical methods are used to solve noise and vibration problems and how they may be used together for even greater benefit. Finally, it shows how structural modification techniques are used as a complement to both methods and how all of the tools may be combined on an inexpensive desktop computer. The paper concludes with an example showing how experimental modal analysis, structural dynamics modification and finite element analysis was used to analyze a test structure.