Modular Mooring System for Ocean Construction -- User's Guide.

Abstract

The modular mooring system is a reusable, multileg mooring system for vessels of opportunity. This document describes modular mooring components, outlines maintenance requirements, and describes system performance. Mooring components were purchased to establish a spread mooring for small ocean construction vessels of the LCM 6 to LCU size. The system components, packaged in four multi-purpose equipment shelters to facilitate shipping and storage, include two hydraulic winches, an anchor windlass, 3,200 ft of 1/2-in. alloy steel chain, four urethane foam mooring buoys, 4,800 ft of braided nylon, and four 200-lb Danforth anchors. Analysis of the system showed that vessel excursion and system stresses in shallow water are especially sensitive to wave excitation. Mooring line forces approaching 10,000 lb are predicted for all vessels in sea state 4 conditions. A suggested mooring design procedure is included. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1978
Accession Number
ADA055926

Entities

People

  • J. M. Atturio

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abrasion
  • Bearings
  • Buoys
  • Civil Engineering
  • Construction
  • Engineering
  • Failure Mode And Effect Analysis
  • Geometry
  • Hydraulic Power
  • Materials
  • Mooring Buoys
  • Resistance
  • Resonant Frequency
  • Seabed
  • Shallow Water
  • Wear Resistance
  • Wind Velocity

Readers

  • Electrical Engineering
  • Life Cycle Cost Analysis
  • Materials Science