THE MEASUREMENT OF HULL AND LINE SHAFT STRESSES IN RESPONSE TO CRANE AND SEA STATE LOADINGS, S.S. PHILIPPINE BEAR

Approximately eight weeks of wave, trim, and cargo induced stress data were obtained on a single LASH-type cargo vessel operating in the Gulf of Mexico, the U.S. Pacific West Coast, and the South Pacific Ocean to Australia. Data were taken from strain gages mounted on hull longitudinal and transverse members in the inner bottom structure, on the shaft thrust bearing casing and foundation, and on the lower main gear case and foundation, as well as strain gage telementry units mounted on the rotating propeller shaft. Specific hull and shafting response was ideally measured during short-term loading to two-million pounds by means of the vessel cargo handling lighter crane. Additional measurements of deflection were taken by means of a jig transit, linear variable differential transducers (LVDT's), strain gage deflectometers, and a laser alignment system.

• Supplemental Notes:
  • Sponsored in part by Avondale Shipyards, Inc., New Orleans, La.
• Corporate Authors:

  Brewer Engineering Laboratories, Incorporated

  Marion, MA  United States 

  Maritime Administration

  Office of Commercial Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Avondale Shipyards, Incorporated

  New Orleans, LA  United States 
• Authors:
  • Battilana, W W
  • Wallace, L F
• Publication Date: 1973-8-17

Media Info

• Pagination: 317 p.

Subject/Index Terms

• TRT Terms: Communication devices; Deflection; Dynamic loads; Hulls; Instrumentation; Measuring instruments; Merchant vessels; Propeller shafts; Strain gages; Stresses; Structural analysis; Telemetry
• Uncontrolled Terms: Dynamic response; Merchant ships; Ship hulls
• Old TRIS Terms: Hull deflection; Hull instrumentation; Hull stress; Propeller shaft stresses; Sea states
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00166734
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: MA-RD-940-T76071 Final Rpt., 500
• Contract Numbers: MA-3-36264
• Files: TRIS, USDOT
• Created Date: Oct 29 1978 12:00AM