Simrad SC90, Руководство по установке

Страница: 172 / 544

170
419050/B
Designing and mounting mechanical support
brackets to secure the hull unit
Due to its height and weight, the hull unit gantry must be secured to the bulkhead by
means of mechanical support brackets. The dimensions and strength of the support
brackets must be adequate to prevent vortex induced vibration. This a requirement to
ensure the safety of the SC90 and the vessel.
Prerequisites
The shipyard must provide all necessary tools and manpower.
Context
A Removable support brackets
B Bulkhead
C Hull Unit
The forces to which the hull unit is
exposed depends on the physical size of
the installation, where it is located, and the
vessel's behaviour in rough sea. It is very
important that the hull unit is sufficiently
supported, as the forces it is exposed to
may affect both the physical installation
and the vessel's safety.
The mechanical support brackets must
be designed and manufactured by the
installation shipyard to fit the complete
installation in the sonar room. All
calculations made to support the design
must meet the applicable safety requirements, and apply to the physical properties of the
hull and the installation.
Note
The final design and the installation must be approved by the classification society.
Without a proper mechanical support for the hull unit gantry, the guarantee will be void!
Procedure
1 Locate the two holes provided on the hull unit gantry.
2 Design, manufacture and mount proper mechanical support brackets from the top of
the hull unit to the bulkhead.
The dimensions and strength of the support brackets must be adequate to prevent
vortex induced vibration.
Simrad SC90 Installation Manual