improving rotorcraft drivetrain life

April 15, 2023

Improving Rotorcraft Drivetrain Life with Computational Testing and Asset Management

April 15, 2023

Future Vertical Lift

Sentient Science: Rotorcraft Life Extension

1965 – Utility Tactical Transport Program

1979 – UH-60

April 15, 2023



1979 – UH-60 Blackhawk

2017 - FVL• Increase Range• Increase speed• Increase payload• Increase reliability• Increase maintainability• Reduce total cost of ownership• Reduce weight

April 15, 2023

Sentient’s Platform History




FARDS – Future Advanced Rotorcraft Drive System

COSTA - Capability-Based Operations and Sustainment Technology Aviation

ASTRO – Autonomous Sustainment Technology for Rotorcraft Operations

April 15, 2023

Army’s Platform Strategy



Long-Term - FVLIncreased PerformanceExtend LifeReduce weight and cost


Medium Term – Chinook Block IIIncreased PerformanceExtend Remanufactured LifeMeet budget cuts – increased foreign sales

Short Term – Fire Scout Reduced fleet sizeIncreased mission capabilitiesLower sustainment costs

April 15, 2023


Application #1 Example: Navy SBIRSpline Life Extension from New Coatings

DCC DCC

April 15, 2023


Application #1 Example: Navy SBIRSpline Life Extension from New Coatings

DCC

DCC

DCC

DCC Coat

DCCCoating Coat

Coating

CoatCoat

April 15, 2023


S-N plot for off-shelve (AISI-52100) and aerospace-quality (SAE-4620) TGB taper roller bearings

75% 100% 108% 115% 125% 140% 150%

75%

100%

125%

150%

75% 100% 125% 150%

Radial load

Ax

ial L

oa

d

Failure probability for 4620 taper roller bearing under different load combinations

Application #2 Example: Navy ProgramBearing Life Extension in Re-Design

DCCDCC

April 15, 2023


Application #2 Example: Navy ProgramBearing Prognostics in Operation

April 15, 2023

Improving Rotorcraft Drivetrain Life with Computational Testing and Asset Management