Modified Lifeboat Pendulum Tests at MUN

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TypeTechnical Report
Series titleStudent Report
SubjectTEMPSC; lifeboat; pendulum; panals
AbstractThis report describes an experiment conducted by the National Research Council Institute for Ocean Technology (NRC-IOT) at the Structures Laboratory located in the S.J. Carew Building on the Memorial University campus. The experiment was conducted in order to evaluate the performance of two acrylic panels, and the instrumentation therein, that were added to the hull of a Totally Enclosed Motor Propelled Survival Craft (TEMPSC Lifeboat). Also included in the objectives of this experiment is the calculation of variables placed in a mathematical model of the ice and hull interaction. Master's degree student Allison Kennedy is currently preparing this model. The acrylic panels were added to the lifeboat in order to measure the forces experienced by the hull of the lifeboat while passing through ice-covered waters. As such, the panels were tested using ice with an apparatus that was constructed to suspend a pendulum comprised of a rope and a specimen (sphere) of ice. The pendulum was then raised to a predetermined angle and allowed to swing in its natural arc, impacting the panel. This test was repeated for 33 separate impacts, using 9 specimens of various specified diameters. As a result of this experiment, the panels were established as being stable and the enclosed instruments were verified as accurate in their readings. The results also leave ample room for the calculation of yet unknown variables located in the mathematical model. The data to calculate these variables has not yet been analyzed, and they are therefore not yet available.
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AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NPARC number18227307
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Record identifier03617783-0012-45e5-8851-7771534960b5
Record created2011-07-07
Record modified2016-10-03
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