Vibration testing
facilitate efficient management of testing,
analysis, and reporting while greatly
enhancing the user experience.
Valuable flight hardware must be
protected from damage that can occur if a
test must abruptly shut down due to any
failure of amplifiers, shakers, and slip
tables. The Safe Shutdown feature of the
Data Physics vibration controller ensures a
smooth controlled shutdown for any test
AEROSPACETESTINGINTERNATIONAL.COM // SHOWCASE 2020 89
protected by the controller’s unique
features. Delivering exceptional dynamic
range & phase accuracy, the Abacus 900
hardware to be used offers features flexible
input/output/tach channel configuration
and distributed signal processing on each
channel card. Meanwhile the
accompanying SignalCalc 900 Series
software suite features a single, easy-to-use
environment with a relational database to
guidance and cross-axial restraint.
The horizontal system will employ a slip
table incorporating Team Corporation’s
unique T-Film bearing system, which offers
the rugged overturning moment capacity
of the Team hydrostatic bearings combined
with the full low-pressure oil support of a
granite or journal bearing oil film type slip
table. This table system is assembled from
a number of patented modular T-Film
bearings. Each bearing measures 12” x 12”
(300mm x 300mm) and allows the table to
be configured to the customer’s test article
size and load requirements. The use of
multiple bearings to completely support
and guide the slip plate will offer excellent
dynamic stability and damping for better
test results. The design of the T-Film
bearing provides a direct load path from
the slip plate to the base and is much more
rigid than other guidance systems.
Team hydrostatic pad bearings are also
used to guide and restrain test articles
during vibration testing. These unique
bearings form a hydrostatic oil film
between a working surface on the package
or fixture, and the “pad” of the bearing
surface interface. Team hydrostatic pad
bearings are extremely stiff, providing the
high level of restraint required to keep
cross-axis motion to a minimum. When
used in conjunction with a 3,000 psi (206
bar) oil supply, Team hydrostatic pad
bearings are friction free and require
almost no maintenance.
INTELLIGENT CONTROL SYSTEM
A Data Physics 900 Series vibration
controller will be employed to orchestrate
the sometimes extreme vibration forces –
while sensitive satellite components will be
2 // Plot of Data Physics’
Controller Safe Shutdown
Event
3 // Data Physics IGBT
Power Amplifier
2
3
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