Results 21 to 30 of about 5,431,490 (128)
Natural frequencies of tapered cylindrical shells by Wittrick-Williams algorithm [Paper 189]
, 2010 Shells are structures designed to cover wide areas without internal supports. This type of structure can survive extreme loads, and has been used since antiquity.
Kennedy, David, El-Kaabazi, Nihal Husein
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Volume 5: Dynamics, Vibration, and ControlThe Wittrick-Williams algorithm excels in solving transcendental eigenvalue problems arising from the exact solutions of governing differential equations.
W Paul Howson (7247858) +3 more
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Response of Composite Beam Structure under Unbalanced Excitation of Rice Threshing System
Shock and Vibration, Volume 2022, Issue 1, 2022., 2022 This paper studies the dynamic response of the support beam under the unbalanced excitation of the rice threshing system. The differential equation of motion of the supporting beam under the action of harmonic force is established by the modal superposition method, and its dynamic response is analyzed.
Xujun Zhai +6 more
wiley +1 more source
Shock and Vibration, Volume 2022, Issue 1, 2022., 2022 This paper presents a unified solution method to investigate the free vibration behaviors of a laminated composite conical shell, a cylindrical shell, and an annular plate with variable thickness and arbitrary boundary conditions using the Haar wavelet discretization method (HWDM).
Jangsu Kim +5 more
wiley +1 more source
Journal of Low Frequency Noise, Vibration and Active Control, 2023 This paper proposes a frequency domain-based analytical framework for seismic performance of viscously damped outrigger systems. Based on a core–outrigger–damper–column simplified model, the global dynamic stiffness matrix is assembled from the core ...
Chuangjie Fang
doaj +1 more source
Natural Frequencies and Mode Shapes of Drill Pipe in Subsea Xmas Tree Installation
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 In this study, experimental and numerical investigations on the vibration characteristics of a drill pipe during the lowering of a subsea Xmas tree were presented. A fourth‐order partial differential equation with variable coefficients was established based on Euler–Bernoulli beam theory.
Wensheng Xiao +6 more
wiley +1 more source
Shock and Vibration, Volume 2020, Issue 1, 2020., 2020 This paper presents a modeling study of the dynamics of a helical spring element with variable pitch and radius considering both the static stiffness and dynamic response by using the geometrically exact beam theory. The geometrically exact beam theory based on the Euler–Bernoulli beam hypothesis is described, of which the shear deformations are ...
Jian Zhang +4 more
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Free vibration of a three-layered sandwich beam using the dynamic stiffness method and experiment [PDF]
, 2007 In this paper, an accurate dynamic stiffness model for a three-layered sandwich beam of unequal thicknesses is developed and subsequently used to investigate its free vibration characteristics.
Morishima, R. +4 more
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Framework for Dynamic‐Stiffness‐Based Free Vibration Analysis of Plate‐Like Structures
Shock and Vibration, Volume 2019, Issue 1, 2019., 2019 A framework for free vibration analysis of plate‐like structures is presented in the paper. Based on the previously formulated dynamic stiffness elements, FREEVIB object‐oriented software in Python environment has been created. Software design and structure as well as a wide range of possible structural problems that could be analyzed using the FREEVIB
Miroslav Marjanović +3 more
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Shock and Vibration, Volume 2019, Issue 1, 2019., 2019 Auxetic mechanical metamaterials that exhibit a negative Poisson’s ratio (NPR) can be artificially designed to exhibit a unique range of physical and mechanical properties. Novel sandwich structures composed of uniform and gradient auxetic double arrowhead honeycomb (DAH) cores were investigated in terms of their vibration and sound transmission ...
Qing Li, Deqing Yang, Rui Moreira
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