Torsional Vibration Analysis (TVA):  Mathematical modeling of new and existing systems, consisting of an examination of the following:

(click on underlined entries for further information)

Vibration Signature Analysis:  Using the appropriate sensors and analysis software, measure and evaluate the torsional and linear vibrations of rotating equipment for vibratory torque, critical speeds, bearing faults, mass unbalance, loose fits, and other sources of vibrations and damage.  Impact tests--also referred to as "ringing"--are conducted to determine the natural frequencies of driveshafts, floating shaft couplings, and connected equipment.

Coupling and Driveline Selection:  Often, a flexible coupling is the least expensive component of the complete system designed to deliver power to a propeller, fan, compressor, pump, dynamometer, etc., yet the wrong coupling can lead to costly down-time and repairs.  In many cases, the flexible coupling or driveshaft between driver and driven is the only device that can be economically changed or altered to detune a system.  Selecting the correct flexible coupling or driveshaft requires a TVA, as well as a lateral analysis, to determine the proper inertia, stiffness, and damping properties of a coupling to prevent and eliminate torsional and/or lateral vibration problems.

Training:  On-site presentation and training in the fundamentals of torsional vibrations using the three-disc rig to illustrate the physics involved.