Analyzing Frequency of Conical (∆ shaped) Tanks

Journal of Solid Mechanics

مقاله 7، دوره 8، شماره 4، اسفند 2016، صفحه 773-780   

نوع مقاله: Research Paper

نویسنده

F Saljughi^*

National Iranian Oil Company (NIOC), Iran

چکیده

A finite element analysis is presented for sloshing and impulsive motion of liquid-filled conical tanks during lateral anti-symmetric excitation. The performed analyses led to the development of a number of charts which can be used to identify the natural frequency, the mode shapes of conical tanks for both fundamental and the cos(θ)-modes of vibration. Conical tank geometry was described with several parameters namely, bottom radius( R_b) total height of liquid (h), angle of inclination of the tanks(θ_i), as variables. Numerical result of the free vibration was obtained for the cases of conical tanks with θ_i=0 and compared with existing experiments and other predicated results, showing a good agreement between the experiment and numerical results.

کلیدواژه‌ها

Conical shell؛ Modal characteristic؛ Finite Element Method؛ Apex angle؛ Natural frequency

مراجع

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