Fiberglass enclosure manufacturer Carolina Cockpit Inc., under contract to National Oilwell Varco, retained Burke Design to perform the composite engineering for a series of crane operator cabins. The completed units were installed on offshore oil rigs located off the coast of Brazil and operated by Petrobras, the Brazilian national oil company. Burke Design specified the composite laminates, and submitted the structural calculations for the cabins and their foundation attachments, for approval by regulatory authority DNV (Det Norske Veritas). The crane operator cabins were designed to survive severe storm conditions and the accelerations induced by the accompanying sea state.
