Mechanical Resonance. Free and forced SHM of a torsional pendulum

Mechanical Resonance. Free and forced SHM of a torsional pendulum

von Laura Imperatori
Geheftet - 9783656585992
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Beschreibung

Scientific Essay from the year 2012 in the subject Physics - Mechanics, , language: English, abstract: In order to test SHM, the behaviour changes of a torsion pendulum due to different damping factors as well as its changes due to applying an external exciter were observed and compared with the theoretical expectations. The quality factor of the same damping state (with a brake current of 6A in the eddy brakes) was calculated using two different approaches and the resulting values were found to be within o of each one, as Q1 = 6.0±1.3 and Q2 = 7.5±0.7. The first approach was based on measuring the maximum displacement for each successive oscillation and deducing the slope from the plot of the natural logarithm of the amplitude against the number of oscillations. Differently, the second estimate of Q was obtained under forced oscillation conditions by taking the ratio of the experimentally determined resonance amplitude and the amplitude of natural oscillation.

Details

Verlag GRIN Publishing
Ersterscheinung Februar 2014
Maße 210 mm x 148 mm x 1 mm
Gewicht 38 Gramm
Format Geheftet
ISBN-13 9783656585992
Auflage 1. Auflage
Seiten 16

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