STRUCTURAL AND MECHANICAL DESIGN - AQUA · PDF fileInformation Technology Technical software -...
Transcript of STRUCTURAL AND MECHANICAL DESIGN - AQUA · PDF fileInformation Technology Technical software -...
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STRUCTURAL AND MECHANICAL DESIGN
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Information TechnologyTechnical software - structural
• Femap/nastran: multipurpose structural modeller and solver: structural modelling,linear and not linear structural analyses
• GT Strudl: multipurpose structural solver: structural analyses andcode checks; foundation analyses; environmental loadscomputation on lattice structures (Morison equation)
• Sesam (Genie basic package): multipurpose structural solver: structural analysesand code checks; foundation and fatigue analyses;environmental loads computation on lattice structures
• Ansys: FEM modeller and structural analyses
• Sant’Ambrogio: design and code checks of pressure vessels and flanges
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Information TechnologyTechnical software - drafting
• Autocad LT 2D general drawings
• Solid Edge 3D and 2D drawings of structures and piping
• Creo Parametric (ex Pro-E) 3D drawings of structures and mechanicalcomponents
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Information TechnologyTechnical software – other packages (knowledge)
Company People and consultants are familiar with the following software packages:• Adina not linear structural analyses• Patran pre-post processing for Finite Element analyses• Mentat/MARC linear and not linear structural analyses
• Strauss linear structural analyses• Sacs structural analyses
• Inventor 3D and 2D drawings• Think 3D 3D and 2D drawings• Tekla 3D modelling of structures and piping
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Structural Engineering and special analyses
• Preliminary configuration analyses and basic design• Detailed design of structures and components• Global and local structural analyses with FEM software (linear
and non linear analyses• Design and check of structural components• Development of structural particulars
• Foundation analyses• Linear and non-linear static analyses on duty, transport, lifting,
installation• Special analyses (dynamic, seismic, fatigue analyses)
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Special Structural Analyses
• Linear and non-linear static analyses on duty, transport, lifting,installation
• Dynamic analyses• Seismic analyses• Fatigue analyses (deterministic and stochastic)• Analyses in elastic-plastic region• Foundation analyses (gravity and pile foundations)
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Design of fixed/mobile structures Hydrodynamic model of the elements/appendices in order to
determine interaction between structure and wave kinematicsand to compute hydrodynamic loads
Global 3D FEM models of the system, to size/check the mainelements
Detail FEM models of main joints or critical items Assessment of operating procedure and limitations
Articulated arm (Saipem)
CastorOne stinger (Saipem)
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Design of mechanical equipment and tool Design of structures (stingers) and equipment for pipe-lying Design of pipeline components (In Line TEE) Design of special parts
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Design of mechanical components Special joining elements (flanges, hinges, padeyes) Spreader bars Special analyses (plastic deformation, swaging)
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Modules design
• detailed design of firing line modules 3D FEM modelling of the structures Sizing/Checks of main and secondary elements Transportation and installation dynamic
analyses
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Basic and detailed design of fixed and mobile platforms Development of subsea templates and manifolds
Structural analyses and checks of structures, and pipingMarine operation analysesMTO and construction drawings
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Platforms Design and Analyses
• Modelling 3D model of the whole structure FEM model of special elements
• Analyses Structural analysis and code checks in operating and survival
conditions Collapse analysis Seismic and impacts analyses Deterministic or stochastic fatigue analyses
Deck Model13
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Platforms Design and Analyses
Platform Model
Deck Lifting Condition
Helideck andLiving Quarter
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Subsea templates
• Detailed design of subsea templates (PLEM’s, SSIV) 3D modelling of the structures Sizing of main and secondary elements and of the foundation (gravity
base), accounting for permanent and temporary life phases Piping stress analyses and piping interfaces development Transportation and installation dynamic analyses
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Typical technical design process
• Kick-off meeting with client• Internal kick off meeting• Design premises and design brief• Analyses and calculations, drafting• Internal review (models, criteria, loads, constraints, computation
methods, ecc• Reporting• Document checks• Review meeting with Client• Document review after Client comment• Final issue
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Typical structural design process
• 3D geometric model
• 3D global structural model
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• Global analyses and checksForces and stress determination
• 3D modelling of special parts(geometry loads, constraints)
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Typical structural design process
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Typical structural design process
• Local analyses and checks
• Local stress evaluation
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