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Power generation using lock-in vorte...

Nayyar, Abhishek.

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Power generation using lock-in vortex shedding frequencies from quasi-constant airflow.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Power generation using lock-in vortex shedding frequencies from quasi-constant airflow./
作者:	Nayyar, Abhishek.
面頁冊數:	134 p.
附註:	Source: Masters Abstracts International, Volume: 54-03.
Contained By:	Masters Abstracts International54-03(E).
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1585011
ISBN:	9781321606577

Power generation using lock-in vortex shedding frequencies from quasi-constant airflow.
Nayyar, Abhishek.

Power generation using lock-in vortex shedding frequencies from quasi-constant airflow. - 134 p.

Source: Masters Abstracts International, Volume: 54-03.

Thesis (M.A.Sc.)--University of Windsor (Canada), 2015.

This thesis presents a coupled mechanical device that generates power by a direct conversion of the airflow into mechanical vibrations. The mechanism experiences a fluid force that changes with its orientation causing vibrations. The device consists of two tightly coupled parts: a mechanical resonator that produces high-frequency mechanical oscillations from quasi-steady airflow resulting in large amplitude vibrations and a piezoelectric power generator harvesting the energy from the resonator's motion. Instantaneous velocity interactions were studied using numerical modeling and experimental tests. The proposed energy harvester allows for locking up the device's lowest natural frequency to the vortex-shedding resonant frequency induced by the ambient energy source. Furthermore, an array consisting of 8 harvesters was constructed and a net feasible power output was measured. A single energy harvester vibrating at its first Eigen frequency mode demonstrated a peak-to-peak output voltage of over 80V at 10Hz, from an input wind velocity of &sim;7 m/s.

ISBN: 9781321606577Subjects--Topical Terms:

649730
Mechanical engineering.

Power generation using lock-in vortex shedding frequencies from quasi-constant airflow.
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502 $a Thesis (M.A.Sc.)--University of Windsor (Canada), 2015.
520 $a This thesis presents a coupled mechanical device that generates power by a direct conversion of the airflow into mechanical vibrations. The mechanism experiences a fluid force that changes with its orientation causing vibrations. The device consists of two tightly coupled parts: a mechanical resonator that produces high-frequency mechanical oscillations from quasi-steady airflow resulting in large amplitude vibrations and a piezoelectric power generator harvesting the energy from the resonator's motion. Instantaneous velocity interactions were studied using numerical modeling and experimental tests. The proposed energy harvester allows for locking up the device's lowest natural frequency to the vortex-shedding resonant frequency induced by the ambient energy source. Furthermore, an array consisting of 8 harvesters was constructed and a net feasible power output was measured. A single energy harvester vibrating at its first Eigen frequency mode demonstrated a peak-to-peak output voltage of over 80V at 10Hz, from an input wind velocity of &sim;7 m/s.
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