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1. Choosing a shock absorber
In general, the decision to install a shock absorber has far-reaching consequences in terms of technology and cost. For a value analysis carried out on a power transmission, the damper is like an intruder not directly involved in the essential function of the installation! Before deciding on its use, you need to be sure that all direct solutions – adapting the shaft line, controlling excitations – are ineffective or really impossible.
In all cases, effective operation of a damper requires a mass element to be set in motion by the vibrations to be damped. The connection zone between the damper support part and the installation is therefore located around a vibration belly, such as often exists at the free ends of rotors.
There are three classes of damper, differentiated by the type of dynamic coupling that exists between the rotor support...
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Choosing a shock absorber
Sizing of tuned dampers
References
Available software (non-exhaustive list)
There are few standard software packages available. Most of the time, it's dedicated software, depending on the user.
VIBMOT - software for calculating eigenmodes and forced torsional vibrations. GLCS company.
XLTRC Program - Turbomachinery Laboratory Texas ASM University
ACORD
ITECH
...Manufacturers-Suppliers (non-exhaustive list)
Customized shafts/Test benches
LUFKIN France SA (COMELOR)
D2T
Shock absorbers
AUBECQ-AUXI
Maintenance/Measurement
SAYA
DBVIB CONSULTING
IMPEDANCE
...
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