AN APPLICATION OF THE DYNAMIC STIFFNESS APPROACH TO FREE VIBRATION OF CONTINUOUS MULTISPAN CRACKED BEAM


Nguyen Tien Khiem 1, Le Khanh Toan 1, Nguyen Thi Thao 1, Do Nam 2
1 - Institute of Mechanics, VAST, 264 Doi Can, Ba Dinh, Hanoi
2 - University of Engineering and Technology, VNU, 144 Xuan Thuy, Cau Giay, Hanoi

Email: [email protected]
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Multispan continuous beam-like structure, usually employed in the bridge and mechanical engineering, is a subject of widespread literature. This report is devoted to apply the dynamic stiffness method for free vibration of multispan continuous beams with cracks. In this study, the free vibration equations of the cracked beam estbalished in the frequency domain are similar to the three moment equations obtained in static analysis of multispan continuous beam. This provides a simple tool for modal analysis of the beam with multiple cracks.

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AN APPLICATION OF THE DYNAMIC STIFFNESS APPROACH TO FREE VIBRATION OF CONTINUOUS MULTISPAN CRACKED BEAM Report description: Multispan continuous beam-like structure, usually employed in the bridge and mechanical engineering, is a subject of widespread literature. This report is devoted to apply the dynamic stiffness method for free vibration of multispan continuous beams with cracks. In this study, the free vibration equations of the cracked beam estbalished in the frequency domain are similar to the three moment equations obtained in static analysis of multispan continuous beam. This provides a simple tool for modal analysis of the beam with multiple cracks.


AN APPLICATION OF THE DYNAMIC STIFFNESS APPROACH TO FREE VIBRATION OF CONTINUOUS MULTISPAN CRACKED BEAM


Multispan continuous beam-like structure, usually employed in the bridge and mechanical engineering, is a subject of widespread literature. This report is devoted to apply the dynamic stiffness method for free vibration of multispan continuous beams with cracks. In this study, the free vibration equations of the cracked beam estbalished in the frequency domain are similar to the three moment equations obtained in static analysis of multispan continuous beam. This provides a simple tool for modal analysis of the beam with multiple cracks.
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