Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler Vibrometer
An experimental procedure for obtaining angular and translational vibration in one measurement, using a continuously scanning laser Doppler vibrometer, is described. Sinusoidal scanning, in a straight line, enables one angular vibration component to be measured, but by circular scanning, two princip...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1996-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1996-3208 |
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| _version_ | 1832550033570922496 |
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| author | A.B. Stanbridge D.J. Ewins |
| author_facet | A.B. Stanbridge D.J. Ewins |
| author_sort | A.B. Stanbridge |
| collection | DOAJ |
| description | An experimental procedure for obtaining angular and translational vibration in one measurement, using a continuously scanning laser Doppler vibrometer, is described. Sinusoidal scanning, in a straight line, enables one angular vibration component to be measured, but by circular scanning, two principal angular vibrations and their directions can be derived directly from the frequency response sidebands. Examples of measurements on a rigid cube are given. Processes of narrow-band random excitation and modal analysis are illustrated with reference to measurements on a freely suspended beam. Sideband frequency response references are obtained by using multiplied excitation force and mirror-drive signals. |
| format | Article |
| id | doaj-art-da67ffcc7e924461a2b12d0a841ac395 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1996-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-da67ffcc7e924461a2b12d0a841ac3952025-02-03T06:08:00ZengWileyShock and Vibration1070-96221875-92031996-01-013214115210.3233/SAV-1996-3208Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler VibrometerA.B. Stanbridge0D.J. Ewins1Imperial College of Science, Technology and Medicine, Department of Mechanical Engineering, London SW7 2BX, UKImperial College of Science, Technology and Medicine, Department of Mechanical Engineering, London SW7 2BX, UKAn experimental procedure for obtaining angular and translational vibration in one measurement, using a continuously scanning laser Doppler vibrometer, is described. Sinusoidal scanning, in a straight line, enables one angular vibration component to be measured, but by circular scanning, two principal angular vibrations and their directions can be derived directly from the frequency response sidebands. Examples of measurements on a rigid cube are given. Processes of narrow-band random excitation and modal analysis are illustrated with reference to measurements on a freely suspended beam. Sideband frequency response references are obtained by using multiplied excitation force and mirror-drive signals.http://dx.doi.org/10.3233/SAV-1996-3208 |
| spellingShingle | A.B. Stanbridge D.J. Ewins Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler Vibrometer Shock and Vibration |
| title | Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler Vibrometer |
| title_full | Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler Vibrometer |
| title_fullStr | Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler Vibrometer |
| title_full_unstemmed | Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler Vibrometer |
| title_short | Measurement of Translational and Angular Vibration Using a Scanning Laser Doppler Vibrometer |
| title_sort | measurement of translational and angular vibration using a scanning laser doppler vibrometer |
| url | http://dx.doi.org/10.3233/SAV-1996-3208 |
| work_keys_str_mv | AT abstanbridge measurementoftranslationalandangularvibrationusingascanninglaserdopplervibrometer AT djewins measurementoftranslationalandangularvibrationusingascanninglaserdopplervibrometer |