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Robust Virtual Dynamic Strain Sensors from Acceleration Measurements

Abstract : The possibility to deduce dynamic strains from acceleration measurements is investigated in this paper. The classic technique applied on beam-like structures which consists in using vertical accelerations to estimate longitudinal strains with a second order central finite difference is compared with two methods based on horizontal accelerations. Time domain responses of accelerometers and strain sensors installed on a simply supported beam are simulated, and the trains deduced from accelerations are compared with the real strains. The possibility of locating damage with the mode shape obtained with estimated strains is also addressed.
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https://hal.inria.fr/hal-01022044
Contributor : Anne Jaigu <>
Submitted on : Thursday, July 10, 2014 - 9:59:04 AM
Last modification on : Thursday, June 4, 2020 - 10:24:05 AM
Long-term archiving on: : Friday, October 10, 2014 - 11:00:24 AM

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Gilles Tondreau, Arnaud Deraemaeker. Robust Virtual Dynamic Strain Sensors from Acceleration Measurements. EWSHM - 7th European Workshop on Structural Health Monitoring, IFFSTTAR, Inria, Université de Nantes, Jul 2014, Nantes, France. ⟨hal-01022044⟩

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