Acquisition of a Point-to-Point Laser Doppler Vibrometer Measurement System
Abstract
Measurements in dynamical systems provide the important data which is used to assess the accuracy of theoretical models and their improvement if necessary, provide monitoring information for damage detection including system aging, etc. Acquiring data from structural systems has traditionally been accomplished using strain gages or conventional accelerometers. However, with the rapidly improving processing capabilities of digital systems, (non-contacting) optically-based transducers are becoming an increasingly popular means of extracting data from experimental systems. The funded grant was used to acquire a state-of-the-art Laser Doppler Vibrometer system to measure the dynamic response of structural and aeroelastic systems of interest to the Air Force. The research program has successfully assessed the robustness of the measurement system in a variety of situations, and provides a strong resource for education of PhD candidates in sophisticated experimental measurements. A further use of this system has been directed toward lightweight inflatable structures, again an area of strong relevance to the research mission of the Air Force for space applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 10, 2002
- Accession Number
- ADA407884
Entities
People
- L. W. Virgin
Organizations
- Duke University