Static Stability Assessment of an ELCAS(M) Based Barge Crane
Abstract
This effort performs an engineering assessment to quantify the lift capacity of a temporary barge crane for cargo transfer in calm water at the waterfront. The assessment addresses two basic aspects concerning the effectiveness and operational safety of a barge crane: (a) the barge capacity to accommodate a mobile crane and (b) the crane boom capacity on a floating platform. Prospective barges were assessed for their capacity against capsizing in accordance with NAVFAC P-307 guidelines for floating derricks and the U.S. Navy's wind heel criteria. This analysis determines the barge list in the worst-case cargo load scenario and thereby determines the range of machine list the crane incurs in service. The range of machine list is subsequently used to determine the allowable crane boom capacity from the manufacturer provided load chart for barge mounted crane installation. The results endorse a 3 by 7 ELCAS platform for the integration of the proposed barge crane. This effort further demonstrated that a criterion based on the maximum allowable barge list does not provide a full protection to the crane barge against capsizing without the evidence of sufficient reserve dynamic stability to withstand operational uncertainties or environmental anomalies.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2009
- Accession Number
- ADA495103
Entities
People
- Erick T. Huang
Organizations
- Naval Facilities Engineering Service Center