TY - THES
TI - Parametric Structural Design of Vertical-Axis Tidal Turbine Arrays
AU - Clay, A
AB - This thesis presents an approach for the structural design of vertical-axis tidal turbinearrays, including both the turbine blades and the supporting superstructure. Design loadcases and performance goals are established in a Load and Resistance Factor Design (LRFD)framework. A simplified frame model is derived to efficiently perform a parametric studyon blade structural performance using loads derived from hydrodynamic simulations. Thismodel is compared to a higher resolution finite element model of the blade to identify waysin which the simplified model may underestimate stresses and deflections. A frame modelis developed for the superstructure using loads derived from experimental hydrodynamicdata. The design approach and component models are implemented in a parametric designalgorithm which determines the required size of each structural component for a given set offlow, control, and geometric parameters. The parametric design algorithm is applied for arange of turbine conditions representative of potential sites and control strategies. Trends inthe structural requirements, controlling limit states, and limits of feasibility are discussed.
DA - 2023/01//
PY - 2023
SP - 81
PB - University of Washington
UR - https://www.pmec.us/theses-dissertations
LA - English
M3 - Master's Thesis
KW - Current
KW - Cross Flow Turbine
KW - Modeling
KW - Performance
KW - Structural
KW - Substructure
ER -