Modelling and Synthesis of High Speed Craft Acceleration Profiles

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  • High Speed Craft (HSC) occupants are subjected to a harsh environment characterized by vibration and repeated shock. Significant research has therefore been invested into HSC shock mitigation. The objective of this work was to determine standard shock acceleration profiles for HSC based on sea trial data. The knowledge of real-life sea inputs is important for in-lab testing of HSC shock mitigation seats. Sea trial vertical acceleration data of a Rigid-Hull Inflatable Boat was analyzed with the aim of characterizing shock acceleration pulses experienced by the boat. Five common types of shock acceleration profiles were identified. These profiles were represented by a combination of modified Gaussian curves. The statistical characteristics of the observed pulses were obtained by curve fitting the data. An algorithm employing copulas and non-parametric density estimation was developed for generating synthetic time histories which have the same statistical characteristics as the observed data.

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  • Copyright © 2015 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
Date Created
  • 2015


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