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Development of an aeroelastic modeling capability for transient nozzle side load analysis (Document No: 20140002645)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chen, Yen-Sen Wang, Ten-See Zhao, Xiang Zhang, Sijun |
| Copyright Year | 2013 |
| Description | Lateral nozzle forces are known to cause severe structural damage to any new rocket engine in development during test. While three-dimensional, transient, turbulent, chemically reacting computational fluid dynamics methodology has been demonstrated to capture major side load physics with rigid nozzles, hot-fire tests often show nozzle structure deformation during major side load events, leading to structural damages if structural strengthening measures were not taken. The modeling picture is incomplete without the capability to address the two-way responses between the structure and fluid. The objective of this study is to develop a coupled aeroelastic modeling capability by implementing the necessary structural dynamics component into an anchored computational fluid dynamics methodology. The computational fluid dynamics component is based on an unstructured-grid, pressure-based computational fluid dynamics formulation, while the computational structural dynamics component is developed in the framework of modal analysis. Transient aeroelastic nozzle startup analyses of the Block I Space Shuttle Main Engine at sea level were performed. The computed results from the aeroelastic nozzle modeling are presented. |
| File Size | 899610 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140002645 |
| Archival Resource Key | ark:/13960/t73v4k82c |
| Language | English |
| Publisher Date | 2013-07-15 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Fluid Mechanics And Thermodynamics Dynamic Structural Analysis Rocket Nozzles Nozzle Design Nozzle Walls Deformation Computational Fluid Dynamics Unstructured Grids Mathematics Space Shuttle Main Engine Rocket Engines Transient Loads Rocket Engine Design Aeroelasticity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
