Loading...
Please wait, while we are loading the content...
Similar Documents
A nastran dmap procedure for calculation of base excitation modal participation factors
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Case, W. R. |
| Copyright Year | 1983 |
| Description | This paper presents a technique for calculating the modal participation factors for base excitation problems using a DMAP alter to the NASTRAN real eigenvalue analysis Rigid Format. The DMAP program automates the generation of the seismic mass to add to the degrees of freedom representing the shaker input directions and calculates the modal participation factors. These are shown in the paper to be a good measure of the maximum acceleration expected at any point on the structure when the subsequent frequency response analysis is run. |
| File Size | 816085 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840007531 |
| Archival Resource Key | ark:/13960/t1bk66j7b |
| Language | English |
| Publisher Date | 1983-11-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Vibration Modal Response Eigenvalues Eigenvectors Excitation Prediction Analysis Techniques Displacement Computer Programs Loads Forces Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
