Real-time structural measurement (RTSM) for control devices
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United States of America Patent
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Nov 21, 2017
Grant Date -
Sep 3, 2015
app pub date -
Sep 11, 2013
filing date -
Sep 21, 2012
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Abstract
Relative displacements related to a structure are measured for use of a feedback signal in real time for the structural monitor of active and semi-active vibration. The monitors reduce structural movement caused by any source of natural or artificial vibration. A pre-stressed axial element is installed between two different points of the structure using a fixed connector and a flexible one. As the structure vibrates in response to an external “source”, a relative displacement is caused between two connecting points of the axial element, which can be measured based on the rotation φ of the flexible connector of the axial element. Discrete displacement can be obtained in real time of the whole structure where the axial element is installed. A modal monitor through active or semi-active devices can improve the structural behavior in some cases.
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