by GeorgeWebManHopperE | Mar 28, 2021 | Shipbuilding and Marine
Adjustable connections for several bolt sizes are required for mounting shipboard equipment in a vibratory environment. HEA designed adjustment plugs that allow for connection of bolt holes with poor alignment and provide slip resistant vibration mounting integrity....
by GeorgeWebManHopperE | Mar 28, 2021 | Shipbuilding and Marine
Deck plate thickness wastage was observed in a shipyard floating dry dock. HEA evaluated the admissible floater deck plate wastage. Stress and buckling limits were established. The existing deck plate thickness wastage was deemed acceptable.
by GeorgeWebManHopperE | Mar 28, 2021 | Shipbuilding and Marine
HEA performed a structural evaluation of the T-AKE vessel bulwark and its adjacent ship structure under the 26″ lizard line cleat design load and sea state 5 loading conditions. A finite element model of the bulwark and adjacent ship structure was modified to...
by GeorgeWebManHopperE | Mar 28, 2021 | Shipbuilding and Marine
The flow from a fireboat foam pump system was not adequate. HEA evaluated the system and found the cause of the poor flow to be a pressure drop in the system. HEA recommended enlarging the foam feed piping from 1.5 inch diameter to 2 inch diameter and replacing the...
by GeorgeWebManHopperE | Mar 28, 2021 | Shipbuilding and Marine
HEA designed an adjustable spreader to be used with a shipyard’s 300-ton cranes. The spreader employs a self-contained ratcheting system, which allows easy adjustments to accommodate different-sized loads. The spreaders are in service, where they have proven...
by GeorgeWebManHopperE | Mar 28, 2021 | Shipbuilding and Marine
A large container ship was to be erected in a dock, which was designed for construction of a much lighter ship. HEA designed a spreader beam to distribute the ship’s weight across sixty locations on the dock slab. The beams allowed for very large loads to be...
