Results 311 to 320 of about 20,668 (357)

Smart tuned mass dampers: recent developments

Smart Structures and Systems, 2014
This special issue focuses on Smart Tuned Mass Dampers (STMD) that are either active or smart or semi-active in nature. Active tuned mass dampers or active mass dampers have found wide acceptance and have been implemented in many tall buildings and long span bridges.
Nagarajaiah, S Nagarajaiah, Satish, Jung, HJ Jung, Hyung-Jo   +1 more
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A rooftop tuned mass damper frame

Earthquake Engineering & Structural Dynamics, 2003
AbstractThis article documents the analytical study and feasibility of placing a tuned mass damper in the form of a limber rooftop moment frame atop relatively stiff structures to reduce seismic acceleration response. Six existing structures were analytically studied using a suite of time history and response spectra records. The analyses indicate that
Jerod G. Johnson, Lawrence D. Reaveley, Chris Pantelides   +2 more
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Self-tuning tuned mass damper (TMD)

SPIE Proceedings, 2017
Tuned mass dampers (TMD) are heavily damped resonant devices which add damping to lightly damped, vibrational modes of a structure by dynamically coupling into the lightly damped modes. In practice, a TMD is a damped spring/mass resonator that is tuned so that its frequency is close to a lightly damped mode on the host structure. The TMD is attached to
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Tuned Mass Dampers for Buildings

Journal of the Structural Division, 1977
Tuned mass dampers attached to single degree-of-freedom systems representing tall buildings are studied. System equations are formulated and solved for various input forcing functions. Design parameters of the damper are varied to study the response reduction.
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Spare Tire Tuned Mass Damper

The Journal of the Acoustical Society of America, 2011
A spare tire tuned mass damper assembly is provided for reducing vehicle vibration or beaming shake that may otherwise be perceptible at the driver interface. The assembly is attachable between a pair of underbody support beams and includes a tire carrier for a spare tire and wheel and a plurality of spring and damper assemblies positioned between the ...
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Discrete Distributed Tuned Mass Damper

2020
Tuned Mass Damper (TMD) is a passive device that conducts vibration energy exchange through tuning and is used to control the vibration of the main vibrating body. Its applications include controlling the low frequency vibration of bridges, ship mast jitter, auxiliary vibration energy transmission, and the noise leakage control of floating raft ...
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Nonlinear Series-Type Tuned Mass Damper-Tuned Sloshing Damper for Improved Structural Control

Journal of Vibration and Acoustics, 2018
A novel type of dynamic vibration absorber (DVA) is proposed, which consists of a tuned mass damper (TMD) and tuned sloshing damper (TSD) connected in series to the structure. The system enables the expensive viscous damping devices (VDDs) associated with traditional TMDs to be omitted from the design.
J. S. Love, C. S. Lee
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Seismic Performance of Tuned Mass Dampers

2010
In a fundamental parametric study the seismic performance of Tuned Mass Dampers(TMDs) is investigated. Earthquake excited vibration-prone structures are modeled as elastic single-degree-of-freedom oscillators and they are equipped with a single TMD. The TMD performance is assessed by means of response reduction coefficients, which are generated from ...
Christoph Adam, Thomas Furtmüller
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Brake assembly with tuned mass damper

The Journal of the Acoustical Society of America, 2006
A tuned mass damper for sound-dampening brake squeal noise is located within a hole formed in a brake component such as a backplate supporting a brake pad. The location of the hole and the weight and geometry of the tuned mass damper are tailored to provide effective damping for the particular frequencies that are to be eliminated in the brake system ...
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Re-tuning tuned mass dampers using ambient vibration measurements

Smart Materials and Structures, 2010
Deterioration, accidental changes in the operating conditions, or incorrect estimates of the structure modal properties lead to de-tuning in tuned mass dampers (TMDs). To restore optimal performance, it is necessary to estimate the modal properties of the system, and re-tune the TMD to its optimal state.
B Hazra, A Sadhu, R Lourenco, S Narasimhan   +3 more
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