Effect of circular web openings on dynamic behaviour of cantilever steel thin-walled tapered I - beams

被引：1
|
作者：
Vivek, K. S. [1 ]
Kishore, M. Jugal [2 ]
Manoj, K. V. S. [1 ]
Pujitha, K. S. V. S. [2 ]
机构：
[1] VVIT, Dept Civil Engn, Guntur 522508, AP, India
[2] KHIT, Dept Civil Engn, Guntur 522019, AP, India
来源：
3RD INTERNATIONAL CONFERENCE ON MATERIALS AND MANUFACTURING ENGINEERING 2018 | 2018年 / 390卷
关键词：
TRANSVERSE VIBRATIONS;
D O I：
10.1088/1757-899X/390/1/012037
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, free and harmonic vibration analyses of cantilever steel thin-walled tapered beams without and with web openings are performed. The analyses are carried out based on finite element method with the help of ANSYS. SHELL 63 element is used for the analyses. Tapered I - beams with symmetric and un-symmetric cross-sections are considered. Initially, free vibration analysis is performed for tapered beams without and with circular web openings to find out the effect of web openings on natural frequencies. The free vibration analysis is then followed by the harmonic analysis. The peak amplitudes and corresponding frequency ranges are presented for the considered cases. Web tapered beam of symmetric cross-section with circular web openings resulted in maximum fundamental natural frequency on performing free vibration (modal) analysis and resulted in peak amplitude at higher frequency on performing harmonic analysis among the considered cases of beams with and without web openings. Thus web openings and type of cross - section affect the dynamic behaviour.
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页数：8
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