FOCUS ON O&M.

The article discusses the methods to reduce the torsional dynamics in rotating equipment power trains found in a power plant. It is mentioned that torsional vibration easily affects high-inertia power trains. It is stated that a full dynamics study is required before implementing aftermarket modifications that could significantly affect torsional dynamics. The article notifies that direct modification of the torsional stiffness is the traditional method to detune the natural frequencies.