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Projection filters for modal parameter estimate for flexible structures
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chen, Chung-Wen Huang, Jen-Kuang |
| Copyright Year | 1987 |
| Description | Single-mode projection filters are developed for eigensystem parameter estimates from both analytical results and test data. Explicit formulations of these projection filters are derived using the pseudoinverse matrices of the controllability and observability matrices in general use. A global minimum optimization algorithm is developed to update the filter parameters by using interval analysis method. Modal parameters can be attracted and updated in the global sense within a specific region by passing the experimental data through the projection filters. For illustration of this method, a numerical example is shown by using a one-dimensional global optimization algorithm to estimate model frequencies and dampings. |
| File Size | 870888 |
| Page Count | 30 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870017150 |
| Archival Resource Key | ark:/13960/t3mw7b14b |
| Language | English |
| Publisher Date | 1987-02-01 |
| Access Restriction | Open |
| Subject Keyword | Numerical Analysis Flexible Bodies Equations of State Algorithms Predictions Vectors Mathematics Control Theory Parameterization Matrices Mathematics Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
