ERIC Number: EJ996091
Record Type: Journal
Publication Date: 2012-Sep
Pages: 9
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0143-0807
EISSN: N/A
Forced Vibrations of a Cantilever Beam
Repetto, C. E.; Roatta, A.; Welti, R. J.
European Journal of Physics, v33 n5 p1187-1195 Sep 2012
The theoretical and experimental solutions for vibrations of a vertical-oriented, prismatic, thin cantilever beam are studied. The beam orientation is "downwards", i.e. the clamped end is above the free end, and it is subjected to a transverse movement at a selected frequency. Both the behaviour of the device driver and the beam's weak-damping resonance response are compared for the case of an elastic beam made from PVC plastic excited over a frequency range from 1 to 30 Hz. The current analysis predicts the presence of "pseudo-nodes" in the normal modes of oscillation. It is important to note that our results were obtained using very simple equipment, present in the teaching laboratory. (Contains 1 table and 7 figures.)
Descriptors: Science Instruction, Physics, Science Laboratories, Scientific Concepts, Motion, Plastics, Equations (Mathematics), Geometry, Secondary School Science
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail: info@ioppubusa.com; Web site: http://www.iop.org/EJ/journal/EJP
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A