The reliability and integrity of equipment, structures and piping can suffer because of vibration and dynamic responses. These depend mainly on excitation forces, stiffness, mass distribution and damping.
Modal analysis, which focuses on natural frequencies and associated modal shapes, provides an important tool in understanding potential issues. Indeed, usually the first step in checking for or troubleshooting vibration issues is to use it to find the natural frequencies and associated modes of machinery or systems.
Read the Chemical Processing article.