VIBRATION ANALYSIS OF STIFFENED PLATES USING CONVENTIONAL AND SUPER FINITE ELEMENT METHOD

Authors

  • SHAHED JAFARPOOR
  • MOHAMMAD REZA KHEDMATI AMIRKABIR UNIVERSITY OF TECHNOLOGY

Keywords:

VIBRATION, STIFFENED PLATES, FINITE ELEMENT METHOD, SUPER ELEMENT

Abstract

THIS PAPER PRESENTS THE VIBRATION ANALYSIS OF STIFFENED PLATES, USING BOTH CONVENTIONAL AND SUPER FINITE ELEMENT METHODS. MINDLIN PLATE AND TIMOSHENKO BEAM THEORIES ARE UTILIZED SO AS TO FORMULATE THE PLATE AND STIFFENERS, RESPECTIVELY. ECCENTRICITY OF THE STIFFENERS IS CONSIDERED AND THEY ARE NOT LIMITED TO BE PLACED ON NODAL LINES. THEREFORE, ANY CONFIGURATION OF PLATE AND STIFFENERS CAN BE MODELED. NUMERICAL EXAMPLES ARE PROPOSED TO STUDY THE ACCURACY AND CONVERGENCE CHARACTERISTICS OF THE SUPER ELEMENTS. EFFECTS OF VARIOUS PARAMETERS SUCH AS THE BOUNDARY CONDITIONS OF THE PLATE, ALONG WITH ORIENTATION, ECCENTRICITY, DIMENSIONS AND NUMBER OF THE STIFFENERS ON FREE VIBRATION CHARACTERISTICS OF STIFFENED PANELS ARE STUDIED.

Author Biographies

SHAHED JAFARPOOR

BSC IN NAVAL ARCHITECTURE, AMIRKABIR UNIVERSITY OF TECHNOLOGY

MSC IN SHIP STRUCTURE, AMIRKABIR UNIVERSITY OF TECHNOLOGY

MOHAMMAD REZA KHEDMATI, AMIRKABIR UNIVERSITY OF TECHNOLOGY

϶ B.SC. IN CIVIL ENGINEERING, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN, 1985-1989.
϶ M.SC. IN NAVAL ARCHITECTURE, TECHNICAL UNIVERSITY OF GDANSK, GDANSK, POLAND, 1991-1993.
϶ DR.ENG. IN STRUCTURAL ENGINEERING, HIROSHIMA UNIVERSITY, HIGASHI-HIROSHIMA, JAPAN, 1997-2000.

+ ASSOCIATE PROFESSOR, FACULTY OF MARINE TECHNOLOGY, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN, (SINCE APRIL 2007)

+ ASSISTANT PROFESSOR, FACULTY OF MARINE TECHNOLOGY, AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN, (OCT. 2000- APRIL 2007)

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Published

2012-03-01

Issue

Vol. 9 No. 1 (2012)

Section

Articles

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