Sterndorff Engineering ApS
Venlighedsvej 2, DK-2970 Hørsholm
Denmark, CVR No. 27624707
Phone : +45 45541555
Fax : +45 45541566
Design and assessment of fixed structures:
2004 Conceptual design of StepUpPool - an adjustable second bottom for swimming pools. Client: NDD Partner Inside.
2001 Assessment of the relative motions between the Ensco101 drilling rig and the South Arne platform at rig deck level during drilling operation. Client: DONG E&P A/S.
1995 Project Engineer. Determined geotechnical parameters and wave and current conditions for the selflowering/ spanning trend simulations for the NorFra pipeline from the Norwegian offshore sector to Dunkerque, France. Client: STATOIL.
1988-89 Involved in the development of the STAR platform concept - a jack-up installed mono-tower platform. The work performed in co-operation with Rambøll. Client: Mærsk Olie og Gas AS.
1988 Feasibility study for free standing slug catcher on 40 m water depth.
1988 Reanalysis of Skjold helideck as lay-down area.
1988 Evaluation of strength and soil bearing capacity for various rigs for service as water injection platforms at the Skjold field.
1987-88 Supervision of the design of several templates for approximately 40 m water depth in the Danish part of the North Sea.
1987-88 Evaluation and selection of software for the structural and marine group, Mærsk Olie og Gas A/S.
1986-88 Assessment of soil bearing capacity for jack-up rings for drilling operation in the DUC concession area in the Danish part of the North Sea.
1986 Evaluation of hydrogen cracks in the Dan FC jacket.
1986 Evaluation of the transportation fatigue for the four-legged Dan FC jacket based on the results from 32 fatigue indicators that were mounted on the jacket during the transport.
1986 Supervision of COWIconsult's design of three extra conductors for the Dan FB jacket.
1985 Supervision of Rambøll & Hannemann's concept study of four-legged jacket for the Kraka field.
1985 Assessment of the Gorm C jacket exposed to earthquake loads.
1984-85 Supervision of Rambøll & Hannemann's design of the four-legged jacket for the Rolf field.
1984-85 Supervision of COWI's design of a free standing caisson for 34 m water depth.
1984 Participated in the conceptual design of a hybrid gravity platform for 100 m water depth in the South China Sea. The design was performed in Kampsax-Perhalls office in Hong Kong for Kumagai Gumi.
1983-84 Development and implementation of a computer programme for automatic code check of jacket structures to the Danish Offshore Code.
1983 Responsible for selection and development of computer programmes for Geoplan's offshore group.
1982-83 Participated in the design of six jackets for Tyra East and West field in the Danish part of the North Sea. Performed the computer analyses of the platforms and special investigations as for instance collision studies. Client: Mærsk Olie og Gas A/S.
Design and assessment of floating structures:
1998 Project Supervisor. Numerical prediction of FSO motions. Client: Bluewater Eng.
1998 Consultancies in connection to the assessment of vessel motions for the design of the Western Marina, Beirut, Lebanon. Client: High-Point Rendel, UK.
1996 Design of a data transmission buoy for radio transmission of metocean data from an offshore site to DHI.
1996 Consultancies in connection with the investigation of the impact from waves created by high speed ferries on the construction work for the Øresund crossing. Client: Øresundskonsortiet.
1995 Project Engineer. Determination of current and wave loads on a floating breakwater for the Expo 1998 Marina.
1989-91 Responsible for co-ordination of theoretical and experimental work conducted at DHI and DMI in BRITE project P-2146: Rational procedures for advanced non-linear analysis of floating structures. The project was performed in co-operation with TECNOMARE, FINCANTIERA & RINA. Client: European Commission.
Riser & mooring analyses:
1996 Design of moorings for data transmission buoys for various water depths.
1989-02 Analysis of moorings and design of mooring models in connection to model tests at DHI.
1987 Evaluation of a flexible hose for disposal of sludge at 4500 m water depth. Developed a computer programme and analysed the 5000 m long hose exposed to ship motion.
Structural analysis & dynamics:
1993-96 Project Manager on a research project on the dynamic response of mono-tower platform to non-linear wave loading. Client: Ministry of Energy, Denmark.
1980-82 Development and implementation of a numerical model for dynamic analysis of beam-like lattice structures. The model is excellent for description of the global dynamic response of jackets exposed to wave and wind loading.
1977 Development and implementation of a numerical procedure for calculation of the elastic buckling loads for tori-spherical shells exposed to internal pressure. The procedure is based on Sanders non-linear shell equations.
1998 Project Manager. Experimental studies and verification of a numerical model for determination of wave diffraction by a vertical circular cylinder.
1995 Determination of added mass for a UT745 type supply vessel in ship impacts. Client: Mærsk Olie og Gas AS
Determination of metocean design parameters:
2002 Consultancies in connection to the assessment of environmental design criteria and green water model tests for the White Rose FPSO undertaken at IMD/NRC facilities in Newfoundland. Client: Mærsk Contractors Newfoundland Ltd.
2000 Specialist consultancies in connection to the assessment of design wave heights, current velocities, and water levels for a new jacket type platform for the Tambar Field offshore Norway. Client: BP-Amoco Norway.
1999-00 Project Manager. Determination of design individual 10,000 year wave heights and crest elevations for the Tyra Field. Client: Mærsk Olie og Gas AS.
1998 Project Manager. Determination of design wave properties for platforms and bridges in the diffracted field around the Ekofisk 2/4 Barrier. Client: Phillips Petroleum Company Norway.
1994-99 Consultancies in connection with the development of design wave parameters for the platforms in the diffracted area around the Ekofisk Barrier. Client: Phillips Petroleum Company, Norway.
1992 Project Manager. Determination of directional design wave heights for the Tyra East and Skjold fields in the Danish part of the North Sea. Client: Mærsk Olie og Gas A/S.
1988 Supervision of Danish Hydraulic Institute in their development of design wave data for DUCs fields.
Wave, current, and wind loads:
1999 Project Manager. Determination of wave-in-deck loads for the Tyra WA platform. Client: Mærsk Olie og Gas AS.
1999 Review of wave-in-deck load prediction performed by others in connection with reassessment of the Tyra field platforms. Client: Mærsk Olie og Gas AS.
1999 Project Manager. Development of a procedure for local wave damage assessment of the Ekofisk platform decks. Client: Phillips Petroleum Company Norway.
1997-99 Project Manager. Development and verification of a procedure for computation of wave loading on offshore platform decks in free and diffracted wave fields. The procedure is an extension to the programme Waveload developed in 1981. Client: Phillips Petroleum Company Norway.
1989 Project Manager for the research project FOCOS I - Hydrodynamic Forces on Complex Offshore Structures The project involved model tests with a jacket at scale 1:40. The measured and the calculated maximum forces were compared and design hydrodynamic force coefficients are established.
1981 Development of Waveload a numerical procedure for determination of wave loading on offshore platforms.
Design of ship impact protections for bridge piers:
2001-02 Quality assurance of numerical studies and model tests to determine bow penetrations into the pier protection islands and ship impact forces on the bridge piers for the new Cooper River Bridge in Charleston, South Carolina, USA. Client: Ben C. Gerwick Inc., USA.
2001-02 Critical review of the approach used for the determination of ship impact design loads for the bridge pier foundations for the Stonecutters Bridge, Hong Kong. Client: Mott Connell Limited for Highways Department, Hong Kong.
1994-95 Project Manager. Numerical simulations for final design of ship impact protection islands for the Ting Kau Bridge, Hong Kong. Client: Binnie Consultants.
1994 Project Manager. Evaluation of the design of ship impact protection islands. For the New Sidney Lanier Bridge, USA. Client: Ben Gerwich, USA.
1994 Project Manager. Numerical simulations for the conceptual design of ship impact protection islands for the Ting Kau Bridge, Hong Kong. Client: Greiner Inc, USA.
1994 Evaluation of the consequences of ship grounding over pipelines at the beach of Kertih, Malaysia. Client: Rendel Palmer & Tritton, London.
1991-93 Co-ordination of theoretical and experimental work for development and verification of a numerical model for simulation of ship collisions with protective islands for the Great Belt Bridge. Client: AS Storebæltsforbindelsen.
Design of offshore platforms to ship impact:
1997-98 Determination of ship impact loads for the JIP-project "Comparative evaluation of Minimum Structures and Jackets". Client: Rambøll.
1994 Determination of recommended ship impact force/deformation curves for supply vessels. Client: Rambøll/Mærsk Olie og Gas AS.
1993-96 Determination of design ship impact loads for Skjold C STAR Platform, Tyra West E STAR Concept,Quasar Jacket Feasibility Study for PPCON, Svend A WideSTAR Concept, Roar A STAR Platform, Dan FD Reanalysis, STAR Platform for Norwegian North Sea Sector, Vallhall A Star Platform, and AMOCO South Everest Monotower. Client: Rambøll.
1993 Determination design ship impact loads for the conceptual design of a STAR platform for 65 m water depth. Client: Mærsk Olie og Gas AS.
1993 Determination of design ship impact loads for the design of a STAR type platform for Skjold B. Client: COWI.
1991-92 Determination of design ship impact loads for the Suction Pile Platform concept, Valdemar Platform Reappraisal, Dan FD Further Development, Dan FE STAR platform, Mjølner Pre-conceptual Design, Trym Braced Conductor Platform, and Mobil UK Monotower Platform. Client: Rambøll.
1989-91 Development of Impact II - a numerical programme for determination of ship impact loads on offshore platforms. Made in co-operation with Rambøll. Client: Mærsk Olie og Gas AS.
1988-89 Extensively involved in the development of the STAR platform concept - a jack-up installed mono-tower platform. Conceptual and detailed design for Kraka, Valdemar and Dagmar was performed in co-operation with Rambøll. Sterndorff Engineering performed quality assurance and numerical simulations to determine ship impact loads which was the design load condition for the platforms. Client: Mærsk Olie og Gas AS.
1981 Development and implementation of a mathematical/numerical model for evaluation of the damage from ship collisions between ships and offshore structures.
Investigation of ship/ship collisions:
1991 Project Manager. Assessment of the damage to the ships and simulations of the collision in order to determine the speed of the ships at the time of the impact for the collision between Dronning Margrethe and Bore Brittanica. Client: DSB.
1989 Assessment of damage and speed in the collision between M/V Danalith and M/T Arzew. Client: The Survey Association.
1977-80 PhD work. Development and implementation of a mathematical/numerical procedure for transient simulation of collisions between two ships.
1995 Investigation of the sinking of M/V Charm.
1991 Co-ordinated the assistance to NC in their evaluation of the Sleipner 'A' Accident. Performed simulations of the sinking of the Sleipner 'A' gravity base structure. Client: Norwegian Contractors.
2001-04 Project Manager on a research project on reliability assessment of offshore platforms exposed to wave-in-deck loading. Client: Danish Energy Agency.
2001-04 Responsible for the co-ordination of the work at DHI on a research project on Reliability Based Structural Design of FPSO Systems (REBASDO). Client: European Commission.
1999 Project Manager. Development of a reliability based wave warning system for shut-down of production for the Tyra Field. Client: Mærsk Olie og Gas AS.
1997-00 Project Manager on a research project on reliability based methods for requalification of offshore structures. Client: Danish Energy Agency.
Preparation and supervision of model tests:
2002-03 Project Manager. Hydrodynamic model tests of the float-over installation of the topsides and docking installation of the jacket for the Azeri field in the Caspian Sea offshore Azerbaijan. Client: Saipem, Italy for AIOC, Azerbaijan.
2001 Project Manager. Model tests for determination of hydrodynamic coefficients for wave-in-deck loading. The tests were performed in Grosse Wellen Kanal at FZK in Hannover, Germany as a part of the EU-TMR-LSF-Programme. Client: The Danish Energy Authorities.
2000-01 Project Manager. Model tests for the design of a Tripod Catenary Mooring System for an FSO to be installed at 125 m water depth at the Chestnut field in the British sector of the North Sea. Client: Brovig Production Services Ltd., UK.
2000 Project Manager. Model tests for the design of a Tripod Catenary Mooring System for an FPSO to be installed at 75 m water depth at the Isis field offshore Tunesia. Client: Brovig Production Services Ltd., UK.
1998 Quality Assurance. Model testing of a side-by-side floating gas storage and offloading system for Bayu-Undan. Client: BHP Petroleum, Australia.
1997-00 Supervision of researchers conducting model tests in the 3-D offshore basin at DHI during the EU-TMR-LSF Programme. Client: European Commission.
1997 Project Manager. Hydraulic model tests for determination of the flow resistance of bridge piers and protective islands for the Øresund Bridge. Client: Øresundskonsortiet.
1996-97 Project Manager. Hydrodynamic model tests of the float-over installation of a 20,000 dwt integrated deck structure from a barge to a jacket. Client: Saipem, Italy.
1996 Project Manager. Model test for the design of a data transmission buoy for radio transmission of metocean data from an offshore site to DHI.
1996 Project Manager. Hydraulic model testing of the transportation and installation of the tunnel elements for the Øresund Link. Client: Øresund Tunnel Contractors A/S.
1995-96 Quality assurance for the model testing of a side-by-side offshore loading system for LPG for the N'Kossa Field Offshore Congo. Client: Anchor Storage Ltd.
1994-95 Supervision of various research teams during testing in the 3D offshore facility at DHI during the Large Scale Facilities programme. Client: The EU.
1994 Project Manager. Model tests for determination of the dynamic response of mono-tower platform to non-linear wave loading. Client: Ministry of Energy, Denmark.
1993 Project Manager. Model tests to determine the feasibility of ROLF - a novel flexible riser system for loading of oil offshore. Client: Shell Expro, Aberdeen.
1992 Lead Engineer on the lifting test for the jacket structure and the lifting and transportation tests for the topsides structure for the Dunbar jacket and topsides. Client: AMEC Engineering.
1990 Project Manager. Model tests for verification of numerically computed non-linear hydrodynamic forces on floating structures. The tests were performed as a part of the research project Rational procedures for advanced non-linear analysis of floating structures (BRITE project P-2146) Client: European Commission.
1989 Project Manager. Model tests for determination of hydrodynamic loads on typical jacket joints in steady flow.
1989 Project Manager. Model tests for determination of hydrodynamic loads on a jacket in waves.
Preparation and supervision of field work:
1993 Project Manager. Full-scale grounding tests for verification of a numerical ship grounding model. Client: AS Storebæltsforbindelsen.
1988 Co-ordination of the soil investigations for the Dagmar, Valdemar and Harald fields in the Danish part of the North Sea.
1987 Supervision of the measurements and evaluation of the results for wind induced vibrations of Dan FC.
1985 Offshore supervision of the soil investigation for Kraka and Gorm F performed by Fugro.
Project management and supervision:
1989-04 Project manager on several research projects, hydraulic model test programmes, and desk studies.
1988-04 Project supervisor on several desk studies.
1984-88 Design supervisor for the conceptual design and detailed design of several offshore platforms and templates.
1984-88 Quality audits of designers working for Mærsk Olie og Gas. The audits were performed in co-operation with the quality assurance manager.
1988-04 Quality assurance of several model test programmes and desk studies.
Preparation of terms of reference:
2004 Preparation of a plan for further development of "Bølgemøllen" - a single point moored water mill which is brought into rotation by the passing water waves and thereby produces energy.
1988 Development of a design basis for transportation of jackets and decks from the far-East to Europe.
1984 Participated in the development of project specifications for an integrated deck for Rolf.
1984 Development of project specifications for a four-legged jacket for the Rolf field.
Development of standards:
2004 - Development of a Danish Country Enabling Document for ISO 19901 - Standard for Fixed Steel Offshore Structures. Client: Danish Energy Agency.
1995 - Involved in the preparation of ISO 19901-1 International Standard for Metocean Design and Operating Conditions.
1995 - Involved in the preparation of ISO 19902 International Standard for Fixed Offshore Steel Structures.
1989-94 Revision of the Danish Offshore Code (DS-449).