Erallo’s Structural Health
Monitoring Capabilities
Erallo’s innovative SHM systems provide
the ability to effectively monitor the health of metals, composites
and concrete structures and components that need continuous and
reliable monitoring: from bridges to rotor blades on aircrafts
and gear boxes on vehicles.
Erallo’s solutions are based on the
structural analysis methodology of Strain Energy Mode Shapes (SEMS)
and combined with simple sensors and networks to identify micro-cracking
and structural fatigue. The damage identification method, based
on strain energy modal analyses is a very sensitive indicator
of damage. The method can be applied to both two dimensional as
well as three dimensional structures.
Graph of strain-energy response; location of damage can be identified by the peaks [1]
Smart Sensor-based SHM System
for Bridges
Erallo’s smart, sensor-based Structural
Health Monitoring (SHM) systems remotely and automatically identify
and quantify fatigue damage in many types of structures and materials;
including metals, composites, and concrete. In any structure –
it is inevitable that with age comes deterioration – and
visual inspections can miss threatening conditions, like the propagation
of micro-cracks in bridge structures. Erallo’s smart sensor
network system can identify structural fatigue damage missed by
visual inspections. The system uses real-time data captured from
ruggedized strain gauge sensors. Embedded microprocessors and
specialized mathematical models and algorithms process and identify
the signature of micro-cracks, and can even extrapolate an estimated
“remaining life” of the structure, , like the in for
bridge safety it can be missed by.
…read
more
Innovative SHM in Composite Aircraft Structures
Erallo’s innovative Structural Health Monitoring techniques
can also be applied to the job of monitoring the structural integrity
of composites used in helicopters and aircrafts, including structural
frame components, rotors, and shells. It can determine the condition
and detect and identify the yield point of structural composite
components without requiring the laborious disassembly and downtime
of some other SHM processes. Wireless sensor networks and web-based
services provide data access to technicians using hand-held devices
and could trigger in-flight notifications to pilots when critical
conditions are identified.
Structural Health Monitoring for Rotor Gears
With the complexity of helicopter and vehicle rotor gears, a
mix of technologies need to be used to get an accurate picture
of its condition; including 1) acoustic emissions (AE) monitoring,
2) vibration monitoring, and 3) strain monitoring. Combined with
Erallo’s specialized algorithms and cleaning/filtering techniques
to isolate, detect and analyze the signatures of early crack initiation
and propagation, these methods and techniques provide a system
for identifying early damage conditions on rotating gearbox components
(gears and bearings) without the need to disassemble the gearbox…read
more
Landing
Gear Monitoring
Landing gear endures tremendous amounts of shock during both
landings and taxiing and the failure of the gear can be catastrophic.
To ensure the integrity of landing gear and to detect induced
strains beyond yield and before micro cracking of structural components
requires identifying induced stress-strain states before failure
and detecting the crack initiation of structural components --
ideally, without requiring the laborious disassembly and downtime
of current non-destructive inspection (NDI) procedures. Erallo’s
novel methodology of strain monitoring with time, sensor fusion
technology, and innovative structural analysis models and algorithms
can be used to establish landing gear damage states as a proactive
indicator of component conditions.
