Probabilistic evaluation of SSME structural components
Abstract
The application is described of Composite Load Spectra (CLS) and Numerical Evaluation of Stochastic Structures Under Stress (NESSUS) family of computer codes to the probabilistic structural analysis of four Space Shuttle Main Engine (SSME) space propulsion system components. These components are subjected to environments that are influenced by many random variables. The applications consider a wide breadth of uncertainties encountered in practice, while simultaneously covering a wide area of structural mechanics. This has been done consistent with the primary design requirement for each component. The probabilistic application studies are discussed using finite element models that have been typically used in the past in deterministic analysis studies.
- Publication:
-
Structural Integrity and Durability of Reusable Space Propulsion Systems
- Pub Date:
- May 1991
- Bibcode:
- 1991sidr.nasa...85R
- Keywords:
-
- Computer Programs;
- Engine Parts;
- Finite Element Method;
- Probability Theory;
- Space Shuttle Main Engine;
- Stochastic Processes;
- Structural Analysis;
- Structural Design;
- Buckling;
- Computer Aided Design;
- Spacecraft Propulsion;
- Turbine Blades;
- Vibration Effects;
- Spacecraft Propulsion and Power