Results 31 to 40 of about 3,270,162 (286)
Damping Identification of Bridges Under Nonstationary Ambient Vibration
Engineering, 2017 This research focuses on identifying the damping ratio of bridges using nonstationary ambient vibration data. The damping ratios of bridges in service have generally been identified using operational modal analysis (OMA) based on a stationary white noise
Sunjoong Kim, Ho-Kyung Kim
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Determination of modal damping ratio for a hybrid floor system
Journal of Vibroengineering, 2015 Concerns about sustainability have led in recent years to develop new structural concepts of timber floor systems which allowed significant performance improvements for strength and stability, while reducing overall costs for a building. All these innovative technologies determine a wide range of opportunities to set up modern timber floors.
Dorina Isopescu, Constantin Gavriloaia
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Journal of Natural Fibers, 2022 Natural fiber composites (NFC) exhibit good specific mechanical properties in comparison to synthetic fiber composites (SFC). The study investigates interlaminar glass (G) fiber hybridized jute (J) and flax (F) reinforced epoxy composites designated as ...
Harshad Pingulkar +3 more
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Modal identification of high earth-rock dams based on seismic records and SSI method
Yantu gongcheng xuebao, 2021 Using the measured seismic records to identify the modal parameters of high earth-rock dams is a feasible way to study the dynamic characteristics of dams.
WANG Mao-hua 1, 2, CHI Shi-chun 1, 2, ZHOU Xiong-xiong 3
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TMD Damping for Structures with Uncertain Modal Parameters
Applied SciencesThe optimum tuning of the natural frequency and damping ratio of TMDs for structural modal parameters and various optimization criteria are well-known from the literature.
Felix Weber
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Aeroelastic stability analysis of rotor blade with complex three-dimensional design
Xibei Gongye Daxue Xuebao, 2023 A rotor dynamic analysis method for the complex three-dimensional design blade was developed and applied to analyzing its aeroelastic stability. Based on the medium-size deformation beam theory and Hamilton principle, the joint transfer matrix was used ...
DENG Jinghui +3 more
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Estimation of Modal Damping Ratios from Mode Indicator Function.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1997 The authors propose the utilization of a MIF (mode indicator function) to estimate modal damping ratios approximately. The accuracy and the effect of this method are examined to determine its feasibility for use in experimental modal parameter identification.
OKUMA, Masaaki, MOMOSE, Ryota
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Estimation of modal damping ratio of impact-damped flexible beams using ANFIS
Neural Computing and Applications, 2012 This paper presents the development of adaptive neuro-fuzzy inference systems (ANFIS) model for estimating the modal damping ratio of impact-damped flexible beams. The experimental results obtained from the literature are used as training and testing data for developing the model. Five of six parameters namely the gap, mass, modal amplitude, frequency,
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
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Integrating damping and non-linearities in a vibration design process [PDF]
, 2013 Classical vibration design uses modes and transfer functions generated with the superposition principle to allow the verification of design objectives.
BALMES, Etienne
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