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Showing 1 to 8 of 8 for “"friction damper"”.
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Magneto-rheological fluid orthosis for suppressing tremor
… and the basic concept of a rotational MR fluid damper for suppressing tremor. Specifically, an MR fluid friction damper experimentally provides a damping coefficient capable of suppressing tremor. A simulation confirms that the damping moment of the MR fluid friction damper is sufficient to …
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Development of Electromagnetic Friction Dampers for Improving Seismic Performance of Civil Structures
… to extreme natural events such as earthquakes. Friction is one of the most reliable mechanisms of energy dissipation that has been utilized extensively in friction dampers to improve seismic performance of civil structures. Friction dampers are well-known for having a highly nonlinear hysteretic …
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Analysis and optimization of passive knee prosthetic design parameters over varying cadences
… knee that employs the use of spring and damper components to replicate the knee torque of the able-bodied human knee. In this study, we build upon prior work to optimize the components used in the ATKnee by accounting for results from field-testing. We first develop an inverse dynamics …
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Using shape memory alloy as dampers : design methodology
… to design. This project proposes a generalized friction element, the lambda box, to model the stress-strain curve of SMA during pseudoelasticity. Simulation is carried out to study the dynamic response of such a system under harmonic loading. Three kinds of systems were examined, in order of …
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ANALYSIS AND BEHAVIOR OF SEGMENTED ENERGY ABSORBING STEEL PLATE SHEAR WALLS (SEA-SPSWs)
… load condition, together they will also act as friction damper to absorb and dissipate energy under extreme load condition. If the gap dimension, plate size, plate thickness and the amount of clamping force are properly set, no yielding or buckling of the plate segments will occur. The geometric …
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Semi-active control of elastic and inelastic building structures with piezoelectric friction dampers
… devices.</p> <p>In this study, a piezoelectric friction damper (PFD) was first introduced with its clamping force regulated by piezoelectric stack actuators. A new semi-active control algorithm, which consists of Coulomb friction, viscous and non-linear Reid damping mechanisms, was proposed to …
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E-CTL based retrofit for rc framed buildings: effectiveness of the system, design method and shaking table test [Il sistema e-CLT per l'adeguamento di edifici intelaiati in c.a.: efficacia del sistema, metodologia di progetto e shaking table test]
Gran parte del patrimonio residenziale europeo realizzato nella seconda metà del Novecento è costituita da edifici intelaiati in calcestruzzo armato che, generalmente, non risultano conformi agli attuali standard antisismici e presentano inoltre prestazioni energetiche insufficienti. Nelle aree …
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Riqualificazione sismica ed energetica di edifici intelaiati in c.a. mediante pannelli di tavole incrociate in legno dotati di innovativi dissipatori ad attrito
Nei Paesi sismici Europei, gran parte del patrimonio edilizio è notevolmente energivoro e altamente vulnerabile ai terremoti, in quanto realizzato in periodi antecedenti all’entrata in vigore delle più recenti e restrittive normative in campo energetico e sismico. In tali Paesi risulta, dunque, …