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Experimental Study on Dynamic Characteristics of Structurally Tailored Isotropic Box Beams

강성재단 된 등방성 박스보의 동적 특성에 관한 실험적 연구

  • Kim, Kyoung-Duck (Dept. of Intelligent Mechanical Engineering, Kumoh Nat'l Inst. of Tech.) ;
  • Kim, Jun-Sik (Dept. of Intelligent Mechanical Engineering, Kumoh Nat'l Inst. of Tech.)
  • 김경덕 (금오공과대학교 지능기계공학과) ;
  • 김준식 (금오공과대학교 지능기계공학과)
  • Received : 2012.12.28
  • Accepted : 2013.02.13
  • Published : 2013.05.01

Abstract

A beam is a major load-carrying member in many engineering structures. Beams with properly designed cross sections and stiffeners are required to enhance the structural properties. Such a design may cause various coupling behaviors, and therefore, an accurate analysis is essential for the proper design of beams. In this research, we manufactured box-beams with stiffeners, which mimic the out-of-plane composite bending-shear coupling behavior reported in literature. A modal test is carried out to obtain the dynamic characteristics, such as natural frequencies and mode shapes, of the box-beam. The obtained results are compared with those of 3D FEM, which confirm that the out-of-plane bending-shear coupling behavior reported in literature is possible. The coupling behavior can be controlled by the proper design of the stiffeners.

Keywords

Isotropic Box Beam;Stiffness Tailoring;Dynamic Characteristics;Bending-Shear Coupling

Acknowledgement

Supported by : 금오공과대학교

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