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Quantifying uncertainties in the structural response of ssme blades
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nagpal, Vinod K. |
| Copyright Year | 1987 |
| Description | To quantify the uncertainties associated with the geometry and material properties of a Space Shuttle Main Engine (SSME) turbopump blade, a computer code known as STAEBL was used. A finite element model of the blade used 80 triangular shell elements with 55 nodes and five degrees of freedom per node. The whole study was simulated on the computer and no real experiments were conducted. The structural response has been evaluated in terms of three variables which are natural frequencies, root (maximum) stress, and blade tip displacements. The results of the study indicate that only the geometric uncertainties have significant effects on the response. Uncertainties in material properties have insignificant effects. |
| File Size | 212308 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870013359 |
| Archival Resource Key | ark:/13960/t4pk58q0k |
| Language | English |
| Publisher Date | 1987-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Dynamic Structural Analysis Finite Element Method Turbine Pumps Turbine Blades Space Shuttle Main Engine Variations Mathematical Models Probability Distribution Functions Statistical Tests Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
