Page 19 - DOUCE HYDRO 2013

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Performance:
The graph below shows the performance generated by an STU at low velocity, and during a dynamic
event at high velocity. The Douce-Hydro/Jarret Structures' AB series are velocity dependant.
Temperature and Aging:
A variation of the outside temperature, which can range from - 55ºC to + 80ºC, does not change the
damper's characteristics. There is no aging of the silicone fluid. The Douce-Hydro/Jarret Structures' AB
units have been tested in very severe environmental conditions, including fire.
GENERAL
FVD: FLUIDVISCOUS DAMPER
STU: SHOCK TRANSMISSION UNIT
PSD: PRELOAD SPRING DAMPER
AVE SERIES
ShockTransmission Units
AB Series
THEORETICAL FORCE / STROKE DIAGRAMME
Force (kN)
Course (mm)
Free displacement at low velocity (force <10% nominal force (Fmax)),Velocity < 0,05mm/s (thermal expansion)
Blocking Force, when the velocity increases (0,05mm/s<Velocity < 0,15mm/s), the force grows up with very high
stiffness (during braking or earthquake)
Traction
Rdyn
Compression
Rdyn
Vcut
Fmax