Dynamic Positioning Systems: Class Guidance for DP Operators

• Enhanced system (EHS) notations to recognise design features beyond current DPS-series notations and to provide flexibility to owners and operators.

• Station keeping performance (SKP) notations to recognise DP capability and to encourage robust design of the DP systems.

• Increased level of detail on the technical requirements to help less experienced users.

Table of contents :
Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping
Dynamic Positioning
Systems
Preface
Introduction
Classification Notation
Definitions
General
Equipment and Dynamic Positioning System
Redundancy Design
Performance and Operation
Documentation
Dynamic Positioning System
Power System
Thruster System
DP Control System
Certification
Control and Monitoring System Equipment
Components and Subsystems
Contents
Abbreviations and Acronyms
List of Figures
List of Tables
Chapter 1
Dynamic Positioning System Design
1.1 General
1.2 DP System Technical Requirements
1.2.1 Basic Requirements
1.2.2 DPS-Series Notations
1.2.3 Consideration of Redundancy
1*3 Basic Design of Redundancy and Redundancy Concept
1.3.1 Redundancy Design Analysis
1.3.2 Cross Connections or Common Points
1.3.3 Hidden Failure Monitoring
1.3.4 Fau It Propagation Paths
1.3.5 Marine Auxiliary Services
1»4 Physical Separation
1.5 DP System Equipment Requirements
1.6 Station Keeping Performance
1.7 Essential Non-DP Systems
1.7.1 Emergency Shutdown System and DP Redundancy
1.8 Fire Protection
1.9 Fuel Quick Closing Valves
1.10 Alarms, Monitoring and Instrumentation
1.11 Communications and DP Alert System
1.11.1 Communications
1.12 DP Alert System
1.13 Failure Mode and Effects Analysis
1.13.1 Failure Mode Analysis
1.14 FMEA Report
1.14.1 FMEA Analysis Report
1.14.2 FMEA Proving Trial Report
1.15 DP Operations Manual
Chapter 2
Power System Design
2.1 Power Generation System
2.1.1 Vessels with DPS-1 Notation
2.1.2 Vessels with DPS-2 Notation
2.1.3 Vessels with DPS-3 Notation
2.2 Power Distribution
2.2.1 Vessels with DPS-2 or DPS-3 Notations
2.3 Power Management System
2.4 Uninterruptible Power Supply Systems (UPS)
2.5 Energy Storage Systems Supporting Dynamic Positioning Operations
2.6 Considerations When Installing Energy Storage
Systems
2.7 Fault Ride Through (FRT) Capability
2.7.1 Pre-requisites for a Live FRT Capability Test
2.8 DC Power Distribution Systems
2.8.1 DC Control Power Supplies and Battery Systems
2.8.2 DC Power Generation and Distribution System
Chapter 3
Thruster System Design
3.1 Thruster Capacity
3.2 Thruster Configuration
3.3 Thruster Auxiliary System
3.4 Thruster Control
3.4.1 Control Parameter
3.4.2 Manual Thruster Control
3.4.3 Emergency Stop
3.5 Thruster Monitoring and Alarm
Chapter 4
Control System Design
4.1 DP Control Station
4.1.1 Arrangement of DP Control Station
4.1.2 Arrangement of DP Control Systems
4.1.3 Arrangement of Control Panels
4.1.4 Arrangement of Data Communication Networks
4.2 DP Control System
4.2.1 External Force
4.2.2 Vessels with DPS-2 Notation
4.2.3 Vessels with DPS-3 Notation
4.2.4 Vessels with DPS-1 +, DPS-2+ or DPS-3+ Notation
4.3 Manual Position Control System
4.4 Control Mode Selection
4.4.1 Manual/DP Control Modes
4.4.2 Main/Backup Control Station
4.4.3 Position Reference System and Environment Sensor
4.4.4 Vessels with DPS-0 or DPS-1 Notation
4.4.5 Vessels with DPS-2 Notation
4.4.6 Vessels with DPS-3 Notation
4.4.7 Signal Processing
4.5 Consequence Analysis (for DPS-2 and DPS-3)
4.6 Display and Monitoring
Chapter 5
Auxiliary System Design
5.1 Fuel Oil
5.2 Cooling Water
5.3 Compressed Air
5.4 Lubrication Oil Systems
5.5 HVAC and Ventilation
5.6 Piping
5.7 Pneumatic Systems
5.8 Power Supply to Auxiliary Systems
6.1 DP System Performance Test
6.1.1 Uninterruptible Power Supply Systems (UPS)
6.1.2 Position Reference Systems and Sensors
6.1.3 Manual Position Control System
6.1.4 Manual Thruster Control System
6.1.5 Thruster Emergency Stop
6.1.6 DP Control System
6.1.7 Control and Alarms
6.1.8 Standby Changeover
6.1.9 Protection Function
6.1.10 Communication
6.1.11 DP Endurance Test
6.2 FMEA Proving Trial for DPS-2 or DPS-3
Chapter 7
Enhanced System Notations
7.1 Enhanced System for DPS-2 and DPS-3
7.2 Enhanced Electrical System (EHS-E)
7.2.1 System Design
7.2.2 Power System
7.2.3 Thruster System
7.2.4 Blackout Recovery
7.2.5 Uninterruptable Power Supply Systems (UPS)
7.3 Enhanced Power and Thruster System (EHS-P)
7.3.1 Systems Design
7.3.2 Power System
7.3.3 Thruster System
7.3.4 Auxiliaries
7.4 Control System (EHS-C)
7.4.1 DP Control Computers
7.4.2 Position Reference Systems
7.4.3 DP Sensors
7.5 Fire and Flood Protection (EHS-F)
7.5.1 Physical Separation
7*6 Summary of System Requirements for Enhanced
System Notations
7.7 Closed Bus and Standby Redundancy
7.7.1 Closed Bus Operation
7.7.2 Standby Start
7.7.3 FMEA and Testing
7.8 Documentation
Chapter 8
Station Keeping Performance
8.1 Definition
8.1.1 SKP
8.1.2 SKP (a,b,c,d,e,f)
8.1.3 Normal Operation Condition
8.1.4 Standby Condition
8.1.5 Traditional DP Capability Plot
8.1.6 Thrust Utilisation Plot
8*2 Environmental Conditions
8.2.1 Wind
8.2.2 Wave and Wave Spectrum
8.2.3 Current
8.2.4 Environments for SKP (a.b.c.d.e.f) Notation
8.2.5 Environments for SKP Notation
8*3 Analysis Conditions
8.3.1 DP System Configurations
8.3.2 Operating Conditions
8.4 Environmental Load Calculation
8.4.1 Wind and Current Force
8.4.2 Wave Force
8.5 Other External Loads
8.6 Available Thrust
8.6.1 Available Thrust for Thrusters
8.6.2 Thruster-Thruster Interaction
8.6.3 Thruster-Hull Interaction
8.6.4 Thruster-Current Interaction
8.6.5 Tunnel Thruster
8.7 Rudder Forces
8.8 SKP Calculations
8.8.1 SKP Notation
8.8.2 SKP (a,b,c,d,e,f) Notation
8.9 Documentation
Chapter 9
Specific Vessel Types
9.1.1 Basic Design Criteria for DP System
9.1.2 Position Reference Systems and Sensors
9.1.3 Effect of Drilling Loads
9.1.4 Vessel Operating Condition
9.1.5 Emergency Shutdown System
9.1.6 Emergency Disconnect System
9.1.7 Maintenance Plan
9.1.8 FMEA
9.1.9 DP Alert System
9.1.10 DP Operations Manual
9.1.11 Documentation
9.2 Project or Construction Vessels
9.2.1 Basic Design Criteria for DP System
9.2.2 Operation Configuration
9.2.3 Position Reference Systems and Sensors
9.2.4 Maintenance Plan
9.2.5 FMEA
9.2.6 DP Alert System
9.2.7 DP Operations Manual
9.3 Logistics Vessels
9.3.1 Operation Mode
9.3.2 Position Reference Systems and Sensors
9.3.3 DP Operations Manual
9.4 Articulated Tug-Barge Combinations
9.4.1 Documentation
9.4.2 Certification
9.4.3 Alternatives
9.4.4 Tug Barge Arrangement
9.4.5 Barge
9.4,6 Surveys
Chapter 10
DP Operations
10.1 Themes
10.1.1 DP Class
10.1.2 DPFMEA
10.1.3 DP Capability Plots
10.1.4 Position Reference Systems and Sensors
10.1.5 Recommended DP Control Modes for DP Activities
10.1.6 Trials and Checklists
10.1.7 DP Operations Manuals
10.1.8 Activity Operational Planning
10.1.9 Communications
10.1.10 DP Planned Maintenance
10.1.11 DP Incidents
10.1.12 Reporting and Record Keeping
10.1.13 Competence
10.1.14 Manning
10.1.15 Notes
10.2 Recommended DP Documentation
Annex 1
Available Thrust Assessment
Al.l Thrust at Bollard Pull
A1.2 Thruster-Thruster Interaction
Al.2.1 In Line Tandem Condition
Al.2.2 Upstream Thruster Turned Tandem Configuration
Al. 2.3 Forbidden Zones
A1.3 Thruster-Hull Interaction
Al.3.1 Friction
Al.3.2 Coanda Effect
Al. 3.3 Pontoon Blockage
Al.3.4 Tilted Thruster/Nozzle
A 1.3.5 Thruster-Current Interaction
A 1.4 Tunnel Thrusters
Al.4.1 Simplified Method
Al.4.2 Detailed Method
□ooo
Annex 2
Rudder Forces
Bibliography