Vibration Response Behaviour of a High Solidity, Low Rotational Velocity, Vertical Axis Wind Turbine Conferences

abstract

• A series of full scale experimental wind tunnel tests were performed to determine the aerodynamic loading behaviour on the airfoils of a high solidity, low rotational velocity, 3 bladed H-type vertical axis wind turbine. The primary vibration response was resonance excitation of the dominant whirling mode of the turbine. However, for a significant number of test cases, resonance behaviour was also observed in the bending strains of the airfoil support struts, primarily corresponding to higher natural frequencies. Furthermore, under various test conditions, vibration amplitude within the support struts was observed to change dramatically during a single test run, suggesting that the vibration was jumping between sets of airfoil support struts in a complex beating mode. In order to isolate the numerous vibration excitation and response behaviours, tests were performed over a range of flow velocities from 8 m/s to 11 m/s with two different support shaft end conditions.

authors

• McLaren, Kevin W
• Tullis, Stephen
• Ziada, Samir

status

• published 

publication date

• January 1, 2010

has subject area

• Mechanical Engineering & Transports (Science Metrix)

published in

• American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM  Journal

presented at event

• ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels  Conference

keywords

• Engineering
• Engineering, Mechanical
• Science & Technology
• Technology

Digital Object Identifier (DOI)

• 10.1115/fedsm-icnmm2010-30541

International Standard Book Number (ISBN) 13

• 978-0-7918-5451-8

start page

• 1123

end page

• 1132

volume

• 3

issue

• PARTS A AND B