INVESTIGADORES
CURADELLI raul oscar
artículos
Título:
Experimental and theoretical study of semi-active friction tendons
Autor/es:
GARRIDO HERNÁN; CURADELLI, OSCAR; AMBROSINI, DANIEL
Revista:
MECHATRONICS
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2016 p. 63 - 76
ISSN:
0957-4158
Resumen:
For purposes of mitigatingvibrations, a Semi-Active Friction Tendon (SAFT), which consists of asemi-active friction damper and an auxiliary spring that are linked to thestructure by a cable, is studied experimentally, numerically and analytically. Twosemi-active control laws are implemented, one is based on velocity-feedback (denotedas SQDCL) and the other is based on force-feedback (denoted as SPCL); the passivecontrol case is also studied for comparison. From the assessment of systemdisplacement and hysteretic behaviour of SAFTs two main conclusions are drawn.First, the effectiveness of the optimized passive-control case can always beimproved by using semi-active control with any of the studied control laws.Second, the SPCL is more effective for large displacements, while the SQDCL ismore advantageous for very small displacements. Moreover, closed-formexpressions for the dissipated energy are derived for the three cases underconsideration. These expressions can be used in preliminary design of SAFTs tocompare with other alternatives, to decide between passive and semi-activecontrol, and to choose the more suitable control law.