Results 31 to 40 of about 47,269 (302)
Measurement + Control, 2021 In the wind tunnel test of a long-span bridge model, to ensure that the dynamic characteristics of the model can satisfy the test design requirements, it is particularly important to accurately identify the modal parameters of the model.
Yulin Zhou +5 more
doaj +1 more source
Experimental investigation into amplitude-dependent modal properties of an eleven-span motorway bridge [PDF]
, 2015 The authors would like to thank their supporters. New Zealand Earthquake Commission (EQC) Research Foundation provided financial support for experimental work (Grant No. UNI/578). New Zealand Transport Agency (NZTA) provided access to the bridge.
Beskhyroun, Sherif +2 more
core +1 more source
Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge [PDF]
, 2019 Damping ratios associated with non structural elements play an important role in mitigating the pedestrian-induced vibrations of slender footbridges.
Hernández Díaz, Alejandro Mateo +3 more
core +1 more source
Mathematics, 2021 A combined energy method is proposed to investigate the flutter instability characteristics of weakly damped panels in the supersonic airflow. Based on the small damping assumption, the motion governing partial differential equation (PDE) of the panel ...
Xiaochen Wang +3 more
doaj +1 more source
Quantification of dynamic excitation potential of pedestrian population crossing footbridges [PDF]
, 2011 Due to their slenderness, many modern footbridges may vibrate significantly under pedestrian traffic. Consequently, the vibration serviceability of these structures under human-induced dynamic loading is becoming their governing design criterion.
Pavić, Aleksandar, Živanović, Stana
core +4 more sources
Strategies for using cellular automata to locate constrained layer damping on vibrating structures [PDF]
, 2009 It is often hard to optimise constrained layer damping (CLD) for structures more complicated than simple beams and plates as its performance depends on its location, the shape of the applied patch, the mode shapes of the structure and the material ...
Alvelid +23 more
core +1 more source
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
doaj +1 more source
Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]
, 2011 This paper presents a basic experimental technique and simplified FE based models for the detection, localization and quantification of impact damage in composite beams around the BVID level.
Abrate S. +16 more
core +3 more sources
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.
Masaaki OKUMA, Ryota MOMOSE
openaire +2 more sources
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
doaj +1 more source