Implementation of a Drop Test Impact Rig for Dynamic Testing of High Speed Craft Shock Mitigation Seats and Extraction of Modal Parameters

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Zuneid Alam, Shaik




The high-g loads occurring at the seat-deck interface locations during slam impacts experienced on high-speed crafts in moderate to high seas results in serious potential for injury to the occupants. The need for a standard testing platform and experimental analysis to investigate a seat's effectiveness forms the major objective of research being carried out by Carleton University's Applied Dynamics Laboratory (ADL) in partnership with Defence Research and Development Canada-Atlantic (DRDC-Atlantic). A drop tower was designed and manufactured by the ADL for testing seats in order
to characterize their shock mitigating effectiveness by simulating the severe conditions of a slam impact at sea through the use of singular impact testing. Further, in order to identify the seats' dynamic parameters from drop test data, the Eigensystem Realization Algorithm (ERA), a modal-analysis-based system identification method, was applied to two commercial shock-mitigating seats provided by DRDC-Atlantic.


PHYSICAL SCIENCES Engineering - Mechanical




Carleton University

Thesis Degree Name: 

Master of Applied Science: 

Thesis Degree Level: 


Thesis Degree Discipline: 

Mechanical Engineering

Parent Collection: 

Theses and Dissertations

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