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Showing 1 to 12 of 12 for “"Targeted Energy Transfer"”.
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Targeted energy transfer using nonlinear energy sinks for the attenuation of transient loads on building structures
Nonlinear energy sinks (NESs) have been proposed as a practical and robust means of passively protecting buildings structures subjected to extreme transient loads. NESs are a type of passive attachment that differentiate themselves from tradition linear attachments through the exploitation of …
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Analysis and Experimental Investigation of Wave Propagation and Energy Transfer in Mechanical Rotator Metamaterials
… and manipulating the propagation of waves and energy transfer in engineered materials characterized by periodic arrangements of unit cells. This organized arrangement governs wave behavior, imparting dispersive characteristics and frequency band structures, thereby inspiring the development of …
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Broadband Piezoelectric Energy Harvesting and Vibration Suppression Using Nonlinear Mechanisms
Harvesting ambient vibration energy provides a promising solution to implement self-powered microwatts to milliwatts low-power electronic devices, as an alternative to batteries. Due to the high power density and simple construction, piezoelectric transducers have attracted the most attention in …
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Stability enhancement of a transonic wing using a passive nonlinear energy sink
This study examined the use of targeted energy transfer (TET) as a mechanism for passive mitigation of transonic aeroelastic instabilities of a wind-tunnel model wing. Medium- and high-fidelity computational aeroelastic models were used to study the transonic aeroelastic instabilities of the wing …
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Dynamic instabilities in a system with geometrically nonlinear damping and stiffness
… resonance captures over definitive frequency and energy ranges. Eventual bifurcation to 1:3 resonance capture generates the dynamic instability, which is manifested as a sudden high amplitude burst of the response of the light attachment. Such instabilities that result in strong energy transfer …
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Vortex-induced vibration of a linearly-sprung cylinder with nonlinear energy sinks
… to the mean flow. The attachment is a nonlinear energy sink (NES). The essentially nonlinear coupling between the rectilinear motion of the cylinder and the motion of the NES allows for efficient, one-way transfer of kinetic energy from the former to the latter, where it is dissipated through a …
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Study on Bandgap Manipulation and Structural Vibration Control in Sandwich Metastructures
… To achieve vibration attenuation and suppress energy transmission under broadband excitation, a sandwich wave-filtering component integrating load-bearing and wave-filtering functions is proposed, and its core layer is designed through a dynamic-response-based topology optimization method. By …
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Passive energy management in acoustical and dynamical systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Theoretical and experimental studies of the dynamics and acoustics of forced ordered granular networks
… waves can still propagate in these media with energy tunable properties. The first part of this dissertation aims to study the frequency responses of a single homogenous granular chain. We consider a one-dimensional uncompressed granular chain composed of a finite number of identical spherical …
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Synergistic design of a combined floating wind turbine - wave energy converter
Offshore energy machines have great potential: higher capacity factors, more available space, and lower visual impacts than onshore machines. This thesis investigates how combining a wave energy converter (WEC) with a floating wind turbine (FWT) may produce offshore renewable energy cost savings. …
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Strongly nonlinear dynamics and acoustics of coupled granular sonic vacua: theoretical and experimental studies
Passive control of energy flow by means of trapping, redirection and scattering has been the subject of considerable attention in recent years. The use of ordered granular media is a promising candidate for such designs. Ordered granular media are ordered aggregates, where neighboring particles (or …
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Modal interactions and targeted energy transfers in laminar vortex-induced vibrations of a rigid cylinder with strongly nonlinear internal attachments
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Seth Robbins (robbins.sd@gmail.com) on 2014-01-16T18:19:53Z Item is restricted until 2016-01-16T18:19:34Z