Coupled, thermoelastic, large amplitude vibrations of Timoshenko beams

2004 ◽  
Vol 46 (11) ◽  
pp. 1589-1606 ◽  
Author(s):  
Emil Manoach ◽  
Pedro Ribeiro
Keyword(s):  
Large Amplitude ◽  
Timoshenko Beams ◽  
Large Amplitude Vibrations

Large amplitude vibrations of heated Timoshenko beams with delamination

2015 ◽  
Vol 230 (1) ◽  
pp. 88-101 ◽  
Author(s):  
Emil Manoach ◽  
Jerzy Warminski ◽  
Anna Warminska
Keyword(s):  
Large Amplitude ◽  
Previous Analysis ◽  
Geometrically Nonlinear ◽  
Timoshenko Beams ◽  
Shear Forces ◽  
Temperature Changes ◽  
Normal Forces ◽  
Amplitude Vibration ◽  
Large Amplitude Vibration ◽  
Large Amplitude Vibrations

In this work, the large amplitude vibration of a heated Timoshenko composite beam having delamination is studied. The model of delamination considers the contact interaction between sublaminates including normal forces, shear forces, and additional damping due to the interaction of sublaminates. This work is an extension of the previous analysis based on a model of the dynamic behavior of a beam with delamination considering additionally the nonlinearities due to large displacements and temperature changes. Numerical calculations are performed in order to estimate the influence of the delamination, the geometrically nonlinear terms, and elevated temperature on the response of the beam.

A nonlinear model of thick shells for large-amplitude vibrations

2021 ◽  
Vol 130 ◽  
pp. 103668
Author(s):  
Hamid Reza Moghaddasi ◽  
Mojtaba Azhari ◽  
Mohammad Mehdi Saadatpour ◽  
Saeid Sarrami-Foroushani
Keyword(s):  
Nonlinear Model ◽  
Large Amplitude ◽  
Large Amplitude Vibrations ◽  
Thick Shells

On the energy extraction from large amplitude vibrations of MEMS-based piezoelectric harvesters

2017 ◽  
Vol 228 (10) ◽  
pp. 3445-3468 ◽  
Author(s):  
Abdolreza Pasharavesh ◽  
M. T. Ahmadian ◽  
H. Zohoor
Keyword(s):  
Large Amplitude ◽  
Energy Extraction ◽  
Large Amplitude Vibrations

Retrofit of Aerodynamic Cable Instability on a Cable-Stayed Bridge: Case Study

2000 ◽  
Vol 1740 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Niket M. Telang ◽  
Charles M. Minervino ◽  
Paul G. Norton
Keyword(s):  
Large Amplitude ◽  
Weather Conditions ◽  
Mitigation Measures ◽  
Mobile Bay ◽  
Department Of Transportation ◽  
Light Rain ◽  
Wind Speeds ◽  
Cable Stays ◽  
Large Amplitude Vibrations

Elegantly poised over the Mobile River, the twin pylons and the semi-harped cable stays of the Cochrane Bridge subtly complement the vast and undulating landscape of the Mobile Bay as the bridge carries US Route 90 over the Mobile River in Alabama. In February 1998, light rain drizzled on the bridge, and a weather station nearby recorded wind speeds of about 48 km/h (30 mph). Under these seemingly mild weather conditions, the normally immobile cable stays started to vibrate, and within moments, these nascent vibrations reached amplitudes of more than 1.2 m (4 ft). Alarmed by this event, the Alabama Department of Transportation (ALDOT) took immediate action to ensure the continued safety and serviceability of the bridge. A team of consultants was selected by ALDOT to investigate mitigation measures for the large-amplitude cable-stay vibrations. The fast-tracked comprehensive program planned and implemented to inspect, test, document, and evaluate the effects of the large-amplitude vibrations and the recommendation of retrofit measures that would limit future occurrences of such cable-stay vibrations on the Cochrane Bridge are described in detail.

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