Power Generators
Vibration Control for Engines, Generator Sets and Transformers
In the power generation sector, vibration control is essential for both standalone internal combustion engines and generator sets combining an engine and an alternator for electricity production.
These systems generate significant dynamic forces that must be properly managed to ensure structural integrity, operational reliability and acoustic performance.
Internal Combustion Engines and Generator Sets
Internal combustion engines produce vibrations primarily due to:
- Combustion cycles
- Reciprocating piston motion
- Harmonic excitation corresponding to multiples of engine rotational speed
In generator sets, additional vibration sources may arise from:
- Eccentricity of rotating components
- Misalignment
- Imbalance
- Progressive wear of mechanical parts
These machines generate substantial horizontal dynamic forces, especially during start-up and transient operating phases.
The selected anti-vibration mounts must therefore withstand:
- Vertical static loads
- Horizontal dynamic stresses
- Transient overload conditions
For these applications, Vibrostop recommends:
Both solutions ensure secure fastening even in the event of elastomer wear or accidental overload.
Transformers
Transformers, although static machines, may generate vibrations and acoustic noise, particularly in large units.
These vibrations are typically associated with:
- Magnetostriction phenomena in ferromagnetic materials
- Excitation at 50 Hz (or 60 Hz depending on region)
In this case, horizontal forces are generally not significant, and vibration isolation can be achieved using:
These solutions effectively reduce vibration transmission to supporting structures and surrounding environments.
