Design Of Offshore Floating Structures

Target Audience:

This course is designed for professionals involved in the design, engineering, and management of offshore floating systems, including:

  • Naval architects and offshore structural engineers
  • Design and project engineers involved in offshore field development
  • Marine and mechanical engineers working on floating production and drilling units
  • Installation and construction engineers managing floating structure deployment
  • Classification society staff and regulatory personnel reviewing offshore designs
  • Graduate engineers and technical trainees entering offshore structure design roles

Course Objectives:

By the end of this course, participants will be able to:

  • Understand the fundamental principles and types of offshore floating structures
  • Apply key design criteria including hydrostatics, hydrodynamics, and structural analysis
  • Evaluate motions, stability, and station-keeping systems for floating units
  • Integrate mooring and riser system design with the floating platform behavior
  • Use relevant design codes and standards (e.g., API, DNV, ABS, ISO)
  • Perform preliminary sizing and configuration of floating structures
  • Analyze environmental and operational loads acting on floating systems
  • Review case studies to understand design challenges, failures, and best practices

Module Highlight

Introduction to Offshore Floating Structures

  • Overview of offshore production systems
  • Types of floating structures
  • Advantages and limitations of floating structures

Environmental Loads and Design Conditions

  • Metocean data collection and analysis
  • Wind, wave, and current loading
  • Combined load cases and design envelopes
  • Design conditions: operating, survival, extreme

Hydrostatics and Stability

  • Buoyancy and floating equilibrium
  • Intact and damaged stability analysis
  • Free surface effect and stability criteria
  • Stability regulatory requirements (IMO, ABS, DNV)

Hydrodynamics and Motion Analysis

  • Wave-body interaction
  • RAOs (Response Amplitude Operators)
  • Natural periods and damping
  • Heave, pitch, roll, surge, sway, yaw
  • Motion criteria for topside and riser interfaces

Structural Design of Floating Units

  • Global and local structural considerations
  • Load combinations and structural response
  • Materials and fatigue considerations
  • Structural modeling approaches
  • Finite Element Analysis (FEA) overview

Mooring System Design

  • Mooring types: spread, turret, taut-leg, catenary
  • Mooring layout and design criteria
  • Mooring line materials and configurations
  • Station-keeping analysis and redundancy

Riser Systems and Interfaces

  • Types of risers: flexible, steel catenary, hybrid
  • Integration with floating platforms
  • Riser dynamics and environmental sensitivity
  • Riser and mooring coupling effects

Regulatory Framework and Design Standards

  • Overview of key standards and codes
  • Classification, certification, and compliance steps

Global Performance Assessment

  • Coupled analysis of hull, mooring, and risers
  • Time-domain simulations
  • Motion and offset limits
  • Fatigue life estimation and ultimate strength checks
  • Inverse Catenary Analysis
  • Environmental Loads

Case Studies and Emerging Technologies

  • Review of real-world floating structure designs and challenges
  • Failures, lessons learned, and design improvements
  • Floating wind turbines and hybrid structures
  • Future trends in floating offshore systems
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