... This paper presents the predictions of ice loads on a moored hull, based on model experiments and numerical simulations. Three levels of mooring stiffness were considered, which varied from an almost infinitely stiff system (used for ship resistance) to a mooring stiffness typical of those used...

... Sailing through ice requires modifications to the standard ship form in terms of structural strength and hull lines. For ships that sail through light ice or brash ice channels, assisted where necessary by an icebreaker, the challenge lies in striking a balance between optimizing the hull...

... connector icetech12-103-rf li page number upstream oil & gas horizontal load hull requirement spider buoy equilibrium depth floating production storage & offloading bearing system riser buoy iceberg arctic fpso guang fpso floating production storage and offloading iceberg draft...

..., and in particular the overlapping plates connected by rivets. Evidence based on ultrasonic scans and calculations of the flow of water into the vessel suggests that the failure was associated with a series of slits in the hull, with a total area of about 12 square feet. Recent explorations into the strength...

... issues, and the impacts of drilling and re-supply operations are assessed. Key technical challenges and associated research and technology development needs are identified. upstream oil & gas platform water depth mooring system limit state ice load drilling equipment line tension hull...

... the performance of existing and novel concepts during a platform evacuation scenario. One of the novel concepts generated through this exercise is outlined in further detail. explosion supply vessel icetech08-173-rf cole page number contingency planning evacuee hull operation vehicle evaluation...

..., called Natural Breaker, is based on the concept that the ice does not need to be broken by the hull of the drillship/platform but can be broken using the wake of azimuth thrusters. Some of the key lessons from use of the azimuth thrusters support the fact that the wake of the thrusters can be more...

... moment generated by the propulsors, thrust and torque of the propellers and the forces exerted on the hull at the location of the connection of the propulsors for different level ice and pack ice conditions as well as in open water. experiment operational condition propeller thrust ice...

... are presented. tempsc trial helicopter upstream oil & gas northumberland strait tempsc design edward island trial period thickness hull strength kendrick gareth igloliorte mike steele ice condition survivability confederation bridge operation evacuation tempsc pressure event TEMPSC...

... A new ice-hull interaction model using the analytical approach with numerical implementation for simulating various ship maneuvers in level ice is presented. Its simple physical detail and short computation time make it very suitable for real-time simulations. In the model, the icebreaking...

... hull form and propulsion system combination are discussed and the most appropriate voyage profile for each design is presented. concentration ice condition operation spoon bow ship hull torque bulbous bow design freight & logistics services knot experiment pack ice propeller...

... iceberg impacts on the hulls of structures have been established considering the structure to be rigid. In the case of moored structures where the loads on the moorings and anchors are required, this assumption of rigidity is too restrictive and leads to overly conservative load estimates. Procedures...

... correspondingly delayed. How these challenges were met is set out below. upstream oil & gas selection fleet technology supply vessel tulpar andrew kendrick subsea system bmt operation forward thruster shallow water astern requirement tank timeframe thruster hull caspian sea april 2002...