Resource Library

Leveraging DigitalClones for Prognostics Health Management

Use of physics-based models of aerospace components in the form of digital twins for prognostics health management offers impactful new...

Technical Papers, Aerospace Technology Papers

Fleetwide Integrated Prognostics Health Management for Emerging eVTOL Operations

Anticipation of a revolution in personal travel fueled by electric vertical take-off and landing aircraft is leading to the development highly...

Technical Papers, Aerospace Technology Papers

Advancements in Future Vertical Lift Reliability Determination – A Path Towards...

Estimating the remaining useful life of critical rotorcraft components has proven difficult, even for platforms with a long service history. An...

Technical Papers

An Improved-Accuracy Method for Fatigue Load Analysis of Wind Turbine Gearbox...

In spite of their increasing popularity, managing the use of wind turbines has been exceptionally challenging. Through computational prognostics,...

Technical Papers, Wind Technology Papers

Rolling Element Bearing Steels

Rolling element bearings occupy the sweet spot between cost, size, weight, accuracy, load capacity, friction, durability and accuracy. Modern...

Technical Papers

Tribological Performance and Coating Characteristics of Sputter-Deposited...

For the first time, the rolling contact performance of Ti-MoS2 films was evaluated using a thrust bearing tribometer and ball­ on-rod tribometers...

Technical Papers

Investigation of Microstructural Alterations in Low- and HighSpeed...

Wind turbine drive train system failures have been the major source of down time and costly repairs. One of the main failure modes associated with...

Technical Papers, Wind Technology Papers

Gear Health Algorithm Solution For Drive System Design And Operations

The safe, reliable, and efficient operation and maintenance of rotorcraft drive systems is an essential capability of Army Aviation. From a safety...

Technical Papers, Aerospace Technology Papers

Overload Evaluation of Rotorcraft Tail Rotor Drive Spiral Bevel Gears

This paper details an effort conducted to evaluate the effects of short to moderate duration overloads on the spiral bevel gears of the UH-60...

Technical Papers, Aerospace Technology Papers

Remaining Useful Life Prediction of Helicopter Gearbox Bearings via Vibration...

This paper describes an innovative approach for predicting the remaining useful life (RUL) of a tapered roller bearing in the tail gearbox (TGB)...

Technical Papers, Aerospace Technology Papers