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Elastic rod origami (RodOri) for programming static and dynamic mechanical properties. [PDF]
Sci AdvLeanza S, Lee J, Lu L, Zhao RR.
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A Systematic Review of Hybrid Polymeric Woven Composites: Mechanical Performance, Numerical Simulation, and Future Perspectives. [PDF]
Materials (Basel)Tefera CA, Duda S, Sławski S.
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Extension of dynamic stiffness method to complicated damped structures
Computers & Structures, 2018Abstract The dynamic stiffness method is an exact method for structural dynamic analysis. By separating the variable of the displacement function in frequency domain, the dynamic stiffness matrix and frequency equation of the structure are obtained, and the structural dynamic analysis can then be achieved by solving the transcendental frequency ...
Fei Han, Danhui Dan, Wei Cheng
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Free vibration of a three-layered sandwich beam using the dynamic stiffness method and experiment [PDF]
International Journal of Solids and Structures, 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.
J R Banerjee, James Njuguna
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Method for characterization of dynamic ankle stiffness in patients with spasticity
Gait & Posture, 2021Dynamic ankle stiffness has been quantified as the slope of the ankle joint moment-angle curve over the gait interval of the second rocker, defined explicitly as the period of the gait cycle from the first relative maximum plantar flexion in early stance to maximum dorsiflexion in midstance.
Stacy R, Loushin +2 more
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The Dynamic Stiffness Method for Linear Rotor-Bearing Systems
Journal of Vibration and Acoustics, 1996The behavior of linear rotor-bearing systems is investigated by using the exact approach of the dynamic stiffness method, which entails the use of continuous rather than lumped models. In particular, the theoretical formulation for rotor systems with anisotropic bearings is developed by utilizing the complex representation of all the involved variables.
RAFFA, Francesco Antonino, Vatta F.
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Computers and Structures, 2015 The development of the dynamic stiffness matrix for isotropic rectangular plate with arbitrary boundary conditions undergoing in-plane free vibration is presented in this paper.
Marija Nefovska-Danilović
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DYNAMIC ANALYSIS OF A SPUR GEAR BY THE DYNAMIC STIFFNESS METHOD
Journal of Sound and Vibration, 2000This study treats a spur gear tooth as a variable cross-section Timoshenko beam to construct a dynamic model, being able to obtain transient response for spur gears of involute profiles. The dynamic responses of a single tooth and a gear pair are investigated. Firstly, polynomials are used to represent the gear blank and the tooth profile.
K.J. HUANG, T.S. LIU
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Dynamic Sparsing in Stiff Extrapolation Methods
IMPACT of Computing in Science and Engineering, 1993For the numerical solution of stiff differential equations, extrapolation based on the semi-implicit Euler discretization is considered. Such a method does not need the exact Jacobian of the system -- an approximation is sufficient. A new ``sparsing criterion'' is proposed which eliminates small elements of the Jacobian in order to reduce the amount of
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The Dynamic Stiffness Matrix Method in the Analysis of Rotating Systems
Tribology Transactions, 1991The dynamic stiffness method has been applied to the evaluation of the natural frequencies of rotating systems. To this purpose, a rotating “Rayleigh beam,” defined by adding the effect of the rotary inertia and the gyroscopic effects to the Bernoulli-Eider beam, has been formulated and its dynamic stiffness matrix is presented in this paper.
Curti G. +2 more
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