Modal analysis is the fundamental dynamic analysis type, providing the natural frequencies at which a structure will resonate. These natural frequencies are of paramount importance in various engineering fields. Suspensions are usually tuned to have different natural frequencies for passenger cars and race cars. Structural engineers need to calculate the natural frequency of buildings so that the seismic waves produced during earthquakes do not match the natural frequencies of the buildings. In this lesson, we will learn how to perform modal analysis for a circuit board.
Circuit boards in portable electronics, e.g., in moving vehicles, suffer from vibration from different sources. Modal analysis can tell us if the design of the circuit board avoids the range of destructive vibration sources.