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Treatment of body forces in boundary element design sensitivity analysis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Saigal, Sunil Aithal, R. Kane, James H. Cheng, Jizu |
| Copyright Year | 1989 |
| Description | The inclusion of body forces has received a good deal of attention in boundary element research. The consideration of such forces is essential in the desgin of high performance components such as fan and turbine disks in a gas turbine engine. Due to their critical performance requirements, optimal shapes are often desired for these components. The boundary element method (BEM) offers the possibility of being an efficient method for such iterative analysis as shape optimization. The implicit-differentiation of the boundary integral equations is performed to obtain the sensitivity equations. The body forces are accounted for by either the particular integrals for uniform body forces or by a surface integration for non-uniform body forces. The corresponding sensitivity equations for both these cases are presented. The validity of present formulations is established through a close agreement with exact analytical results. |
| File Size | 532941 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890015816 |
| Archival Resource Key | ark:/13960/t3421vx5s |
| Language | English |
| Publisher Date | 1989-04-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Structural Design Engine Design Turbine Wheels Gas Turbine Engines Centrifugal Force Shapes Design Analysis Engine Parts Optimization Boundary Element Method Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
