Page 184 - Ship Construction.DJ Eyres 6Ed

Ch16-H8070.fm Page 173 Wednesday, October 18, 2006 6:57 AM
Bottom Structure 173
The main engine seatings are in general integral with this double bottom
structure, and the inner bottom in way of the engine foundation has a sub-
stantially increased thickness. Often the machinery is built up on seatings
forming longitudinal bearers which are supported transversely by tripping
brackets in line with the double bottom floors, the longitudinal bearers
being in line with the double bottom side girders (see Figure 16.7).
Boiler bearers are similarly fabricated with support from transverse
--- ใช้เพื่อการศึกษาเท่านั้น---
brackets and longitudinal members.
In recent years, particularly for passenger ships, much attention has been
given to the reduction of noise and vibration emanating from the machinery
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี
installation. To this end resilient mounting and flexible couplings are now
common in such ships.

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