TTPN -Section 3 : BASIC DESIGN PROCEDURE

Section 3 BASIC DESIGN PROCEDURE

Design Approach . . . . . . . . . . . . 19
General Design Criteria . . . . . . .... 21
Mooring Service Types . . . . . . . . . 23
Facility Design Criteria for Mooring
Service Types . . . . . . . . . . . . . 24
Ship Hardware Design Criteria for
Mooring Service Types . . . . . . . . . 24
Strength . . . . . . . . . . . . . . . . 24
Serviceability . . . . . . . . . . . . . 24
General Mooring Integrity . . . . . . . 27
Quasi-Static Safety Factors . . . . . . 27
Allowable Ship Motions . . . . . . . . . 27
Design Methods . . . . . . . . . . . . . 32
Quasi-Static Design . . . . . . . . . . 32
Dynamic Mooring Analysis . . . . . . . . 34
Risk . . . . . . . . . . . . . . . . . . 34
Coordinate Systems . . . . . . . . . . . 38
Ship Design/Construction Coordinates . . 38
Ship Hydrostatics/Hydrodynamics
Coordinates. . . . . . . . . . . . . . . 38
Local Mooring Coordinate System . . . . . 38
Global Coordinate System . . . . . . . . 38
Vessel Design Considerations . . . . . . 42
Facility Design Considerations . . . . . 43
Environmental Forcing Design
Considerations . . . . . . . . . . . . . 44
Winds . . . . . . . . . . . . . . . . . . 44
Wind Gust Fronts . . . . . . . . . . . . 47
Storms . . . . . . . . . . . . . . . . . 53
Currents . . . . . . . . . . . . . . . . 56
Water Levels . . . . . . . . . . . . . . 56
Waves . . . . . . . . . . . . . . . . . . 56
Water Depths . . . . . . . . . . . . . . 57
Environmental Design Information . . . . 57
Operational Considerations . . . . . . . 60
Inspection . . . . . . . . . . . . . . . 61
Maintenance . . . . . . . . . . . . . . . 62
General Mooring Guidelines . . . . . . . 62