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Seismic analysis capability in nastran
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Strang, R. F. Butler, T. G. |
| Copyright Year | 1984 |
| Description | Seismic analysis is a technique which pertains to loading described in terms of boundary accelerations. Earthquake shocks to buildings is the type of excitation which usually comes to mind when one hears the word seismic, but this technique also applied to a broad class of acceleration excitations which are applied at the base of a structure such as vibration shaker testing or shocks to machinery foundations. Four different solution paths are available in NASTRAN for seismic analysis. They are: Direct Seismic Frequency Response, Direct Seismic Transient Response, Modal Seismic Frequency Response, and Modal Seismic Transient Response. This capability, at present, is invoked not as separate rigid formats, but as pre-packaged ALTER packets to existing RIGID Formats 8, 9, 11, and 12. These ALTER packets are included with the delivery of the NASTRAN program and are stored on the computer as a library of callable utilities. The user calls one of these utilities and merges it into the Executive Control Section of the data deck to perform any of the four options are invoked by setting parameter values in the bulk data. |
| File Size | 2875440 |
| Page Count | 42 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840024800 |
| Archival Resource Key | ark:/13960/t8bg7hs5h |
| Language | English |
| Publisher Date | 1984-08-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Mass Transient Response Computer Programming Spatial Distribution Seismology Transfer Functions Acceleration Physics Nastran Coefficients 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 |
