Torsional Vibration - Torque and torsional vibration using telemetry analysis


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Problem Types
Vibration Analysis
Pressure Pulsation
Speed Sweep
Operating Deflection Shape
Modal Analysis
Finite Element Analysis
Strain Gauge Testing
Torsional Vibration Analysis
Hammer Vibration

Strain Gauge Telemetry – Torque Measured on a Rotating Shaft

Vibration problems, including resonances, can extend from lateral problems to torsional problems in rotating shafts.

Two approaches can be used to determine a torsional resonance. The first is modeling the system using the stiffness and rotational inertia. The second is to measure the resonance.

Measuring the resonance can be done by measuring the rotational speed at various locations along the shaft or shaft system. It is far more effective to measure the strain in a shaft. The strain is transmitted from the rotating shaft using a telemetry system. It can be measured in conjunction with lateral vibrations, and then be compared with rotational speed in transient analysis,. Particularly if the torsional vibration goes through a gear train, some of the torsional forces will be converted to lateral movement and measured with conventional accelerometers.

Spectrum Technologies has the capability to perform both the modeling of the torsional vibration as well as strain gauge based telemetry to measure the torsional vibration problems.