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Advanced Materials Research, 2013
Taking the bending stiffness, cable static sag and cable inclined angle into consideration, equations of space free vibration of the cable-damper system are derived in this paper. Joining the variable separation strategy and center difference method, the partial differential equations are discretized in space and a set of complex eigenvalue equations ...
Shui Sheng Chen, De Shan Wang
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Taking the bending stiffness, cable static sag and cable inclined angle into consideration, equations of space free vibration of the cable-damper system are derived in this paper. Joining the variable separation strategy and center difference method, the partial differential equations are discretized in space and a set of complex eigenvalue equations ...
Shui Sheng Chen, De Shan Wang
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Application of joint time-frequency distribution for estimation of time-varying modal damping ratio
Structural Engineering and Mechanics, 2011The logarithmic decrement method has been long used to estimate damping ratios in systems with only one modal component such as linear single degree of freedom (SDOF) mechanical systems. This paper presents an application of a methodology that uses joint time-frequency distribution (JTFD) as input, instead of the raw signal, to systems with several ...
H. Bucher, C. Magluta, W.J. Mansur
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SAE Technical Paper Series, 1999
<div class="htmlview paragraph">A new approach of estimating the modal parameters of operating piston engines is presented. The developed approach represents a combination of concepts from currently existing analyses such as the natural excitation technique (NExT), conditioned input analysis (CIA), and conditioned source analysis (CSA), and is ...
Kiran Govindswamy, Michael F. Albright
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<div class="htmlview paragraph">A new approach of estimating the modal parameters of operating piston engines is presented. The developed approach represents a combination of concepts from currently existing analyses such as the natural excitation technique (NExT), conditioned input analysis (CIA), and conditioned source analysis (CSA), and is ...
Kiran Govindswamy, Michael F. Albright
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Calculation on Modal Damping Ratio of Stay Cable Using Nonlinear Friction Damper
Advanced Materials Research, 2012Stay cables of long span cable-stayed bridges are easy to vibrate under wind or wind/rain loads owning to their very low inherent damping. To install cable dampers near to the anchorages of cable has become a common practice for cable vibration control of cable-stayed bridge structures.
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Experimental modal analysis using undamped control for high damping system
Archive of Applied Mechanics, 2023Daiki Tajiri +2 more
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The Proceedings of the Dynamics & Design Conference, 2021
Naoya AZUMA, Shinji TAMURA
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Naoya AZUMA, Shinji TAMURA
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Multi-material topology optimization for improvement of modal damping ratio
The Proceedings of the Dynamics & Design Conference, 2016Youhei NAKANO +4 more
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Modal truncation damping in reduced modal analysis of piecewise linear continuum structures
Mechanics Based Design of Structures and Machines, 2023Robert K Nemeth, Borbála B Geleji
exaly
An investigation on modal damping ratio as an indicator of invisible
2014A. J. Dammika +4 more
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