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Eigenfrequency Identification of the Hydraulic Cylinder
2021The paper is focused on the identification of the eigenfrequency of the linear hydraulic servo drive, which consists of the flow control valve and hydraulic cylinder. The behaviour of the closed loop controlled hydraulic drive is given by the dynamic properties of the control valve and hydraulic cylinder.
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The Eigenfrequency Spectra of the Interior Problems
2011As we saw in the previous chapter, each of the exterior boundary value problems has at most one regular solution. Unfortunately, this is not true for (Dω+) and (Nω+). We prove that (D0ω+) and (N0ω+) have nonzero solutions by establishing their equivalence to certain integral equations that are known to have such solutions.
Gavin R. Thomson, Christian Constanda
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Eigenfrequencies of rectangular plate assemblies
Computers & Structures, 1997Summary: The dynamic stiffness method, which yields exact results for certain class of plate structures, is used to analyse free vibration frequencies of various plate assemblies. The constituent plates of the systems are considered either to lie in planes at right angles to each other or coupled via stiffeners.
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Eigenfrequencies of isotropic fractal drums
1999We study the behaviour of eigenvalues in problems which correspond to the vibrations of a drum, the whole mass of which is concentrated on a fractal subset of the drum.
David Edmunds, Hans Triebel
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Size-dependent two-scale topological design for maximizing structural fundamental eigenfrequency
JVC/Journal of Vibration and Control, 2021Bin Xu, Yuanhao Liu, Jingdan Xue
exaly
Level set-based isogeometric topology optimization for maximizing fundamental eigenfrequency
Frontiers of Mechanical Engineering, 2019Manman Xu, Shuting Wang, Xianda Xie
exaly