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A resonant damping study using piezoelectric materials
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Choi, B. B. Duffy, K. P. Jansen, R. H. Morrison, C. R. Min, J. B. Provenza, A. J. |
| Copyright Year | 2008 |
| Description | Excessive vibration of turbomachinery blades causes high cycle fatigue (HCF) problems requiring damping treatments to mitigate vibration levels. Based on the technical challenges and requirements learned from previous turbomachinery blade research, a feasibility study of resonant damping control using shunted piezoelectric patches with passive and active control techniques has been conducted on cantilever beam specimens. Test results for the passive damping circuit show that the optimum resistive shunt circuit reduces the third bending resonant vibration by almost 50%, and the optimum inductive circuit reduces the vibration by 90%. In a separate test, active control reduced vibration by approximately 98%. |
| File Size | 525764 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080047738 |
| Archival Resource Key | ark:/13960/t2c878g93 |
| Language | English |
| Publisher Date | 2008-04-07 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Vibration Damping Circuits Resonant Vibration Piezoelectricity Turbomachinery Feasibility Cantilever Beams Active Control Bending Vibration Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
