Performance of Self-excited Energy Harvesters with Tip Bodies of Non-circular Cross Section Shapes

<p>An experimental study on the performance of self-excited energy harvesters with non-circular tip body shapes has been performed. The two tip body shapes analyzed correspond to a half cylinder and a square cross section. Experiments are carried out in the wind tunnel to record the voltage output of the harvesters at different free stream velocities. The presence of the aeroelastic galloping instability was detected by the behavior of the transversal tip displacement of the harvester as well as the coupling of the motion and shedding frequency from the bluff body. The effect of tip mass, free stream turbulence, tip body shape, and localized stiffness is also studied. The parameter used to evaluate the performance of the energy harvester is the average power generated at every single case tested.</p>

Name thesis:degree_name

Master of Engineering (M.E.)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Mechanical Engineering

Year dc:date.available

2015

Author dc:creator

• Gomez, Joan Manuel

Contributors dc:contributor

• Yiannis Andreopoulos
• Feridun Delale

• Energy harvesting
• Flow induced vibrations
• Piezoelectric
• Engineering
• Mechanical Engineering

Repository record dc:identifier

https://academicworks.cuny.edu/cc_etds_theses/685

OAI identifier oai:identifier

oai:academicworks.cuny.edu:cc_etds_theses-1704