Aerospace Engineering

Performing design, analysis and troubleshooting of aerospace components in elevated temperature and cryogenic conditions to determine structural integrity.

Prediction of Thrust Chamber Life on NASA Space Shuttle Main Engines

We developed an analytical procedure for the prediction of thrust chamber life on NASA Space Shuttle Main Engines limited by the small number of firings. In an operating rocket thrust chamber the hot-gas-wall ligaments separating the coolant and combustion gas are subjected to pressure loading and severe thermal cycling. The resulting stresses cause plastic straining …

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Modal and Vibration Analysis on Linear Displacement Transducers (Actuators)

FEA Model Results O’Donnell Consulting performed a vibration (modal and spectrum) FEA analysis for a manufacturer’s linear variable displacement transducers. When a client wished to add a Linear Variable Displacement Transducer (LVDT) Unit to a stock hydraulic Actuator for a Demonstration Engine, they had concern regarding changes in the dynamic behavior of the Actuator. We …

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