HUMS is a sensor-based monitoring system that enables

H UM S INFOGRA P HIC : He a lth and Usage Monitoring System
HUMS: By the Numbers
Health and Usage Monitoring System (HUMS)
A STUDY OF HUMS ON AH-64 APACHES FOUND :
HUMS is a sensor-based monitoring system that enables
Condition-Based Maintenance by measuring the health
and performance of mission-critical components in aircraft.
1
30
By continuously monitoring vibration at numerous points
throughout the drivetrain, and pinpointing mechanical
faults before they become catastrophic failures, HUMS
provides actionable information that allows informed
maintenance decisions.
REDUCTION IN MISSION ABORTS
20
Benefits of Condition-Based Maintenance (CBM)
ENHANCES SAFETY
REDUCTION IN MAINTENANCE TEST FLIGHTS
A proactive approach heads off accidents before they happen. Data signaling
potential problems on one aircraft can be used to comprehensively analyze an
entire fleet.
INCREASES AVAILABILITY
Better maintenance planning means less unplanned downtime, faster
turnaround and increased mission readiness to support the warfighter.
5 - 10
REDUCES COSTS
CBM substantially cuts maintenance/operating costs in the near term and
over the life cycle of the aircraft and avoids costs of spares usage, dedicated
test flights and asset recapitalization.
REDUCTION IN SCHEDULED MAINTENANCE
W h at P ro b l e m s D o e s C B M Ad d re ss?
MAINTENANCE
AND SAFETY
AVAILABILITY
STRATEGIC
PLANNING
LOGISTICS
Q:
Q:
Q:
Q:
IS MY EQUIPMENT
READY NOW? IS IT
SAFE TO FLY?
HOW MANY AIRCRAFT
ARE PREPARED FOR
FLIGHT TODAY?
THIS WEEK?
HOW MANY PARTS
DO I NEED NEXT WEEK?
NEXT MONTH?
WHAT CAN I DO TO IMPROVE
OVERALL FLEET AVAILABILITY
AND COST CONTAINMENT
NEXT YEAR?
DISPATCHER
& PILOT
FLIGHT
PLANNER
MAINTENANCE MANAGER
INVENTORY MANAGER
ENTERPRISE
3 6 S e n s o r s Co n t i n u o u s l y M o n i to r V i b rat i o n I n C H - 47 D r i ve t ra i n
FWD TRANSMSN (2)
AFT ROTOR SHAFT (4)
HANGER BEARINGS (6)
2ND ENGINE (4)
FWD ROTOR SHAFT (4)
AFT TRANSMSN (2)
AFT FAN (2)
CH-47 CHINOOK
ONBOARD DATA ACQUISITION UNIT
WEIGHS <4 LBS, DRAWS <15W POWER
1ST ENGINE (4)
AUX POWER UNIT
TUNNEL MNT TRACKER
COMBINING TRANSMSN (2)
COCKPIT (2)
TRANS SHAFT (2)
AH-64 APACHE
OH-58 KIOWA WARRIOR
How Does Condition-Based Maintenance Work?
Onboard Data Acquisition Unit collects analog data from sensors embedded
throughout an aircraft's drivetrain and converts it to digital.
1. Data downloaded by the ground support crew can be used to monitor
the health of a single aircraft or an entire fleet.
2. Diagnostic algorithms automatically analyze acquired data providing
a comprehensive indication of aircraft machinery health.
3. Software and web-based tools communicate needed repairs and
suggest maintenance actions.
UH-60 BLACKHAWK
M i s s i o n R e a d i n e s s a n d C o s t Av o i d a n c e
INCREASED AVAILABILITY / REDUCED MAINTAINER BURDEN
ARMY COMBAT AVIATION BRIGADE CBM FLEET SAVINGS
U.S. AIR FORCE SAW A
$101 MILLION
COST AVOIDANCE OVER 22 MONTHS
2
71 CH-47 CHINOOK HELICOPTERS
AVOIDED 2,957
MAINTENANCE MAN-HOURS 2007–2008
IMPACT OF EQUIPPING AIRCRAFT WITH HUMS
3
A Re co rd O f S av i n g s , Re a d i n e ss I m p rove m e n t s
CBM COMPLEMENTS PERFORMANCE-BASED LOGISTICS, THE US DOD’S
PREFERRED WEAPON SYSTEMS SUPPORT/SUSTAINMENT STRATEGY
CBM SYSTEM IS TO BE INCLUDED ON ALL US DOD VEHICLES, BASED ON BUSINESS
CASE ANALYSIS (US DOD INSTRUCTION 4151.22, DATED 2 DEC 2007)
SOURCES:
1 US Army 3rd Aviation Brigade, 2006
2 BG William Crosby, 22 July 2008 CBM Conference AMC
3 MG James Myles, AHS CBM meeting, Feb 2009
4 USAF Vibration Program Office
Findout
out
more
about
Honeywell
on Google+
Find
more
about
Honeywell
Aerospace
on Google+ at goo.gl/u46aw.
© Honeywell International Inc 2011