Analysis of dry friction by friction test bench
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URI: http://hdl.handle.net/10317/4404Compartir
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Mostrar el registro completo del ítemAutor
Miralles Pérez, AntonoDirector/a
Moreno Nicolás, José Andrés; Marín García, FulgencioEscuela/Centro
Escuela Técnica Superior de Ingeniería IndustrialUniversidad
Universidad Politécnica de CartagenaDepartamento
Ingeniería EléctricaÁrea de conocimiento
Ingeniería MecánicaFecha de publicación
2015-01-22Palabras clave
Electric engineFriction
Girling
Resumen
A test of a device equivalent to a Girling duo-servo brake mechanism has been
made. The main result is the characterization of a series of frequency associated
to the system. The frequency in the spectrum that matches with the belt’s turn
frequency is the clearest relation response excitation. The excitation source is related
to two small notches on the surface of the belt. A frequency bandwidth with
a main frequency, which has no relation to the natural frequencies of the system,
is present in each spectrum and is related to non-linear friction phenomenon.
Several probes have been studied to find the best solution, which is obtained
with the laser distance sensor. Even using this sensor, the block’s displacement in
the workbench is greater than the probe’s measure threshold in some assemblies.
Several belts have been tested and the belt with smoother notches has been selected.
Another source of instability comes from the necessary velocities used in
the test. These force the ...
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