Christine Lynggard Hansen
Christine Lynggard Hansen
Thesis Topic
Design Wave Analysis on floating structures: Identifying extreme response drivers for complex structures
PhD Start Date
Nov 2021
PhD Project Objectives
The project will involve identifying Design Waves on structures with different driving loads, with focus on offshore renewables. Design Waves are sequences of waves which induce the extreme load or extreme response on an offshore structure. The concept is relevant in offshore structural design as a Design Wave is a short deterministic wave sequence which can be exploited as input in high fidelity nonlinear time domain modelling and thus facilitate accurate and minimally conservative design of offshore structures.
This project will explore the full process of identifying and constructing Design Waves and testing physically on a structure for the first time. The overall aim is to develop a framework for identifying Design Waves for a variety of renewable energy devices and further to explore the limits of applicability of Design Wave theory.
The structures to be studied are a fixed barge structure subject to amplified beam waves, an M4 wave energy converter and a floating offshore wind turbine. The proposed methods will involve statistical analysis of available data from physical laboratory-scale tests, combined with numerical modelling and validation by physical testing in a wave tank.
The project aims to advance the existing methodologies to include non-linearly driven responses and directionally spread seas.
Biography
Christine Lynggard Hansen holds a master of science in wind energy engineering from the Technical University of Denmark. She has relocated to Perth, WA from Copenhagen, Denmark to pursue her PhD at the University of Western Australia. Christine has experience with both modelling and testing wave-structure interactions and is especially interested in extreme wave events. Her goal is to contribute to the renewable energy transition by applying her knowledge in developing and designing renewable energy devices. Outside of work, Christine can be found knitting, training for a triathlon, camping or surfing.
Supervisory Team
Primary Supervisor: Dr. Hugh Wolgamot
The University of Western Australia
Co-Supervisor: Dr Jana Orszaghova
The University of Western Australia
Co-Supervisor: Prof. Paul H. Taylor
The University of Western Australia
Co-Supervisor: Prof. Henrik Bredmose
Technical University of Denmark
