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F
Fraunhofer-LBF: Wheel shaft
test bench and monitoring the condition of freight cars
A new test bench for examining wheelset shafts is being demonstrated
for the first time by Fraunhofer-LBF at InnoTrans 2012. This enables rotating
components such as a wheelset shaft on a passenger carriage or
freight car to be tested under radially active loads. The special bearing and
drive system on the test bed enables a shaft to be tested at very high rates,
to a maximum rotation frequency of almost 60 hertz. This corresponds
to the speed of a high speed train. The demonstration model used at the
fair has been derived from the original CAD data and dimensionally scaled.
Researchers working at LBF have also developed a new method for
the long term monitoring of the condition of freight cars using intelligent
sensors with their own energy source. These enable damage to be identified
at an early stage, thereby helping to prevent accidents. The system
can be flexibly configured and installed at a later stage. The energy-harvesting
system utilises energy obtained from the motion of the vehicle to
supply the sensor nodes.
Fraunhofer-Institut für Betriebsfestigkeit
und Systemzuverlässigkeit LBF, D-Darmstadt
Hall 4.1, Booth 225
Tobias Steinhäußer
+49 (0)89-12051308
tobias.steinhaeusser@zv.fraunhofer.de
www.lbf.fraunhofer.de
Monitoring the condition of freight cars
Wheelshaft
test bench
Friedrich Hippe Maschinenfabrik und Gerätebau:
Universal electronic points operating system
The universal Type WH electromechanical points operating system
is extremely flexible, offering a wide range of configurations to
meet specific customer requirements. Various setting ranges and
forces can be achieved, for example a travel of between 70 and
220 millimetres, setting times of between two and six seconds, and
a force of between 3,000 and 6,000 newtons. The points operating
system is available in a trailable and a non-trailable version. The
reduced height of just 141 millimetres enables this unit to be deployed
with inward or outward operation. A manual setting can be
made without the need for special tools. It can also be connected
to existing control systems. If required a water- or dustproof version
can be supplied. The Type WH points operating system has
been developed jointly by Friedrich Hippe GmbH and Wolber Antriebstechnik
GmbH.
Friedrich Hippe Maschinenfabrik und Gerätebau GmbH,
D-Hagen am Teutoburger Wald
Hall 23, Booth 213
Frank Wöhrmann
+49 (0)5405-616700146
frank.woehrmann@friedrich-hippe.de
www.friedrich-hippe.de
WH 90i points actuator
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