University of New Mexico
Modified inverse first-order reliability method (I-FORM) for predicting extreme sea states
Abstract
dc:description.abstract<p>Environmental contours describing extreme sea states are generated as the input for numerical or physical model simulations as a part of the standard current practice for designing marine structures to survive extreme sea states. Such environmental contours are characterized by combinations of significant wave height (Hs) and energy period (Te) or peak period (Tp) values calculated for a given recurrence interval using a set of data based on hindcast simulations or buoy observations over a sufficient period of record. The use of the inverse first-order reliability method (I-FORM) is standard design practice for generating environmental contours. This thesis develops enhanced methodologies for data analysis prior to the application of the I-FORM, including the use of principal component analysis (PCA) to create an uncorrelated representation of the variables under consideration as well as new distribution and parameter fitting techniques. These modifications are shown to contribute to the development of more accurate and reasonable representations of extreme sea states for use in survivability analysis for marine structures.</p>
Degree
thesis:*- Name thesis:degree_name
- Civil Engineering
- Level thesis:degree_level
- Thesis
- Discipline thesis:degree_discipline
- Civil Engineering
- Year dc:date.available
- 2015
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Eckert-Gallup, Aubrey Celia
- Contributors dc:contributor
-
- Stone, Mark
- Coonrod, Julie
- Neary, Vincent
- N/A
Subjects
dc:subject × 5Rights
- Language dc:language
- English
Identifiers
dc:identifier.*- OAI identifier oai:identifier
- oai:digitalrepository.unm.edu:ce_etds-1107