Mechanical support brackets
Due to its physical size and weight, and the fact that the installation trunk penetrates the vessel hull, it is very important that the hull unit is installed and secured properly.
Image
A Strengthening knee-plates (stiffereners)
B Installation trunk
Important
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 CS90 and the vessel.
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!