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Welcome to Advanced Vibration Solutions
Specializing in "detuning" systems . . . eliminating damaging torsional and
linear resonant frequencies from the operating speed range of rotating equipment.
Advanced Vibration Solutions, LLC is a Florida-based consulting engineering
company providing comprehensive analyses and objective solutions to torsional and linear vibration problems in equipment driven
by diesel and gasoline engines, electric motors, and steam turbines.
The potential for vibration problems exists in virtually all rotating equipment:
Propulsion systems for water-borne craft
Dynamometers for analyzing engine performance
Diesel generators for primary and peaking electric power
Hydraulic pump drives for
on- and off-highway vehicles and equipment
Cooling tower fan drives
HVAC systems
Variable frequency electric motor drives
Pumps, fans, compressors, and blowers for industrial and commercial applications
Gear "hammer," worn
gears and splines, broken bolts and shafts, and coupling failures are some of the signs of a torsional vibration problem
in a system. Unlike linear vibrations--unbalance and bearing faults, the symptoms of torsional vibration problems are
often undetected until a failure occurs, e.g., fatigue failure of a shaft.
The key to detuning a system lies in conducting a thorough torsional
vibration analysis, TVA. An analysis begins with a mathematical model of the actual system as a series of
lumped masses connected by weightless springs--the mass-elastic system, see schematics bleow for examples of
diesel engine and electric motor systems. The greater the detail of the mass-elastic system, the better the results
of an analysis. Once the mass-elastic system, damping, and all excitations/ harmonics emanating from the driving
and/or driven equipment have been accurately defined, the vibratory responses of the system components can then be determined.
If any potentially damaging resonant frequencies are present, the model can then be adjusted to either move/remove such frequencies,
or reduce the effects of resonance to acceptable levels by means of the appropriate damping mechanisms.
Mass unbalance, misalignment, loose fits, bearing faults are some
of the mechanisms which cause rotating equipment to vibrate. By analyzing the vibratory signature of a system, the cause(s)
of objectionable and/or potential vibration problems can be identified and eliminated.
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