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The Journal Of Undergraduate Research: Volume 12
The Journal Of Undergraduate Research: Volume 12
The Journal of Undergraduate Research
This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 12.
Vibrations Analysis On Tennis Racket String, Jenny Blackburne
Vibrations Analysis On Tennis Racket String, Jenny Blackburne
The Journal of Undergraduate Research
The purpose of this project was to investigate and analyse the vibration of a tennis racket string when a ball is hit. This was done using concepts of mechanical vibrations and modelled using Microsoft Excel. The displacement of the tennis string over time was graphed for two different positions on the racket and two different relative speeds of the tennis ball. It was found that the position of the tennis ball on the racket has very little effect on the displacement of the strings. If the ball or racket is moving faster when the ball is hit, then the displacement …
Integration Of A Pulsating Heat Pipe In A Flat Plate Heat Sink, Mitchell Hoesing
Integration Of A Pulsating Heat Pipe In A Flat Plate Heat Sink, Mitchell Hoesing
The Journal of Undergraduate Research
The ongoing development of faster and smaller electronic components has led to a need for new technologies to effectively dissipate waste thermal energy. The pulsating heat pipe (PHP) shows potential to meet this need, due to its high heat flux capacity, simplicity, and low cost. A flat plate PHP was integrated into an aluminum flat plate heat sink with a simulated electronic load. The PHP heat sink used water as the working fluid and had 20 parallel channels with dimensions 2 mm × 2 mm × 119 mm. Experiments were run under various operating conditions, and the thermal resistance of …