
15.3.2
Resilient mounting
Generating sets, comprising engine and generator mounted on a common base frame, are
usually installed on resilient mounts on the foundation in the ship.
The resilient mounts reduce the structure borne noise transmitted to the ship and also serve
to protect the generating set bearings from possible fretting caused by hull vibration.
The number of mounts and their location is calculated to avoid resonance with excitations
from the generating set engine, the main engine and the propeller.
NOTE
To avoid induced oscillation of the generating set, the following data must be sent
by the shipyard to Wärtsilä at the design stage:
●
main engine speed [RPM] and number of cylinders
●
propeller shaft speed [RPM] and number of propeller blades
The selected number of mounts and their final position is shown in the generating set drawing.
Wärtsilä 32 Product Guide - a21 - 7 September 2016
15-15
15. Foundation
Wärtsilä 32 Product Guide
Содержание WARTSILA32
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