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The TATEM (Technologies and Techniques for New Maintenance
concepts) project lead by GE Aviation (through its Systems division
formerly Smiths Aerospace) is achieving significant success toward the
goal of researching and validating technologies and techniques for
reducing maintenance related costs.
The TATEM project takes a holistic view of on-and-off-board
aircraft maintenance activities. The research includes new maintenance
philosophies, technologies and techniques, to develop new approaches
for maintaining aircraft structure, avionics, utilities, landing gear
and engines. The aim of the project is to demonstrate the means to
achieve a 20% reduction in airline maintenance related costs within 10
years and a 50% reduction over 20 years.
During the last year the project has successfully defined the
architecture of a future integrated health management approach to
aircraft maintenance. The remaining focus of the project is to build
and physically integrate the critical elements of this architecture at
a sub-system, system level, aircraft and fleet level. The selected
architecture is both modular and scaleable and will be applied to
on-and-off-board aircraft technologies and maintenance activities. One
of the key unpinning technologies in the new approach is the use of
prognostics to enable predictive maintenance planning. Fittingly, GE
Aviation has recently tested algorithms for the diagnosis of actuators
and contactors and is developing algorithms for prognosis of these
systems.
The physical integration work is complemented by a model based
cost benefit assessment of the TATEM technologies and processes on
current and future aircraft operation. This will provide the ultimate
means for assessing whether the project has been successful in its
aims of reducing maintenance related costs.
GE Aviation, an operating unit of General Electric Company
(NYSE:GE), is a world-leading provider of commercial and military jet
engines and components as well as integrated digital, electric power,
and mechanical systems for aircraft. GE Aviation also has a global
service network to support these offerings. For more information,
visit us at www.ge.com/aviation.
Notes to Editors:
TATEM (Technologies and Techniques for nEw Maintenance concepts)
is a 4-year European research project, which began in March 2004,
costing EUR 40 million, half of which is funded by the European
Union's 6th Framework Programme. The project brings together a
consortium of 57 contractors from 12 countries across Europe, Israel
and Australia. The project is being led by GE Aviation in Bishops
Cleeve, Cheltenham.
Maintenance is a costly business that can account for as much as
20% of an airline's direct costs. The purpose of the project is to
investigate methods for reducing the cost of maintenance on both fixed
wing and rotary wing aircraft. The objective of the project is to
ensure that the aerospace European industry remains competitive in the
design and support of current and next generation aircraft.
The technical focus of the TATEM project is to assess the
following maintenance philosophies, technologies and techniques:
-- Maintenance-free avionics that require no scheduled
maintenance work.
-- Signal processing techniques (e.g. fuzzy, logic, neural
networks, model-based reasoning), which can be used to convert
data into information about the health of the systems.
-- Novel onboard sensor technology to gather data from the
aircraft (avionics, utilities, actuation, engines and
structures), to feed prognostic or diagnostic systems.
-- Diagnostic methods to identify and locate failures and
malfunctions and so reduce the incidence of no fault found
alarms.
-- Prognostic methods to provide support for preventative
maintenance actions.
-- Decision support techniques to generate process-oriented
information and guidance (instructions) for the maintenance
engineer.
-- Human interface technologies to provide the ground crew with
information, data and advice at the point of work.
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