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Re: [ATM] Active damping
OR...
You could also run a loose piece of rope from one end to the other inside each truss tube to absorb the vibrational energy. Just like HAM RADIO operators have been doing in their big aluminum tubed beam antennas for generations now.
Ken Hunter
KB7H
Don Clement <clement.focuser@verizon.net> wrote:
Active dampening is being used today commercially on skis, poles and snow
boards. see: http://www.patentstorm.us/patents/6095547.html A piezo device
is used for both sensor and actuator. Perhaps using stand alone active
dampening for each truss pole where the vibration modes of each pole are
known (from FEA modeling). This could limit the number of DSPs needed for
the active dampening circuit.
Don Clement
Running springs, California
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