Vehicle Integrated Propulsion Research (VIPR)
A major aspect of NASA's propulsion health management development work is demonstrating and evaluating emerging technologies on operational engines. Harsh environment conditions within an engine present significant challenges for the integration and application
of aircraft health management technologies. VIPR is a program for developing real-world tests to evaluate such emerging technologies.
Work to date: The VIPR I tests occurred in 2011 at Armstrong and involved model-based performance estimation and diagnostic work. In 2013, follow-on VIPR II tests evaluated additional engine health
management sensors and algorithms under nominal and faulted engine operating scenarios.
Looking ahead: In upcoming VIPR III tests, researchers will inject volcanic ash into a commercially representative high-bypass turbofan. NASA sensors installed in the engine will measure how and where the engine degrades after several hours of exposure to low and moderate ash concentrations. The experiment will provide useful information
to aircraft and engine manufacturers, airline operators, and aviation regulators as they evaluate the risks that ash hazards pose to aviation.
Partners: VIPR partners include U.S. Air Force, Federal Aviation Administration, U.S. Geological Survey, Pratt & Whitney, GE Aviation, Rolls-Royce, The Boeing Company, Makel Engineering, and academia.
Advances research: Accelerates the technology readiness level for aviation safety innovations
Increases safety: Enhances safety features implemented on aircraft to handle a wide variety of potentially dangerous conditions and situations
Detecting and diagnosing engine faults Testing health management technologies Designing fault-tolerant engines
Flight and Ground Experimental Test Technologies
Armstrong conducts innovative flight research that continues to expand its world-class capabilities, with special expertise in research and testbed platforms, science platforms, and support aircraft. Re-searchers place particular emphasis on providing accurate flight data for research aimed at designing next-generation flight vehicles. Described here are research projects that are seeking to increase safety, reduce costs, and dramatically decrease testing and approval times. Armstrong's new verification and validation (V&V) simulation test bench is particularly innovative as it integrates reconfigurable software models for multiple aircraft components. These models enable high-fidelity simulations to be performed more easily and at significantly faster rates than are possible with hardware-centric test benches.
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