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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.71 No.5
- 발행연도
- 2019.1
- 수록면
- 553 - 562 (10page)
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This paper presents the results of a study into the dynamic behaviour of a support structure of a mobile elevating work platform. The vibrations of the mechanical system of the observed structure are examined analytically, numerically, and experimentally. Within the analytical examination, a simple mathematical model is developed to describe free and forced vibrations. The dynamic analysis of the mechanical system is conducted using a discrete dynamic model with a reduced number of vibrational degrees of freedom. On the basis of the expression for the system energy, and by applying Lagrange's equations of the second kind, differential equations are derived for system vibrations, frequencies are determined, and the laws of forced platform vibration are established. At the same time, a nonlinear FEM model is developed and the laws of free and forced vibration are determined. The experimental and numerical part of the study deal with the examination of the real structure in extreme conditions, taking into account: the lowest eigenfrequency, forced actions that could endanger the general stability, the maximal amplitudes, and the acceleration of the work platform. The obtained analytical and numerical results are compared with the experiments. The experimental verification points to the adverse behaviour of the platform in excitation cases – swaying. In such a situation, even a relatively small physical force can lead to unacceptably high amplitudes of displacement and acceleration – exceeding the usual work values.
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참고문헌 (21)
참고문헌 신청
Bengi Arisoy / 2018 / Finite element model calibration of a steel railway bridge via ambient vibration test / Steel and Composite Structures, An International Journal 27(3):327~335
Güray Arslan / 2017 / Determination of structural performance of 3D steel pipe rack suspended scaffolding systems / Structural Engineering and Mechanics, An Int＇l Journal 64(5):671~681
Srđan M. Bošnjak / 2015 / Failure analysis of the mobile elevating work platform / Case Studies in Engineering Failure Analysis 3:80~87
Bošnjak, S. / 2009 / Dynamic response of mobile elevating work platform under wind excitation / Strojniški vestnik – J. Mech. Eng 55(2):104~113
Ren G. Dong / 2012 / An Investigation on the Dynamic Stability of Scissor Lift / Open Journal of Safety Science and Technology 02(01):8~15
Güray Arslan / 2017 / Determination of structural performance of 3D steel pipe rack suspended scaffolding systems / Structural Engineering and Mechanics, An Int＇l Journal 64(5):671~681
Srđan M. Bošnjak / 2015 / Failure analysis of the mobile elevating work platform / Case Studies in Engineering Failure Analysis 3:80~87
Bošnjak, S. / 2009 / Dynamic response of mobile elevating work platform under wind excitation / Strojniški vestnik – J. Mech. Eng 55(2):104~113
Ren G. Dong / 2012 / An Investigation on the Dynamic Stability of Scissor Lift / Open Journal of Safety Science and Technology 02(01):8~15
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