Results 21 to 30 of about 391,234 (275)
Buckling Cascade of Thin Plates: Forms, Constraints and Similarity [PDF]
, 1999 We experimentally study compression of thin plates in rectangular boxes with variable height. A cascade of buckling is generated. It gives rise to a self-similar evolution of elastic reaction of plates with box height which surprisingly exhibits ...
A Pocheau +7 more
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Nihon Kikai Gakkai ronbunshu, 2018 Research on seismic isolation technology was also a question of how much restoring force can be reduced. The seismic isolation rubber with thin film like rubber and metal plates stacked in multiple stages to reduce the restoring force has achieved great ...
Masashi YASUDA +4 more
doaj +1 more source
Apparent Negative Stiffness Induced by Constriction
physica status solidi (b), 2022 Lateral constriction (transverse elastic constraint) of elastic rod controls its apparent (longitudinal) stiffness and can even make it negative. (The total energy of system rod + constriction device remains positive.) The apparent stiffness depends upon moduli of the rod material and the constriction modulus relating lateral normal stress and strain ...
Elena Pasternak, Arcady Dyskin
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Rigorous bounds on the effective moduli of composites and inhomogeneous bodies with negative-stiffness phases [PDF]
, 2014 We review the theoretical bounds on the effective properties of linear elastic inhomogeneous solids (including composite materials) in the presence of constituents having non-positive-definite elastic moduli (so-called negative-stiffness phases). We show
Kochmann, Dennis M., Milton, Graeme W.
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Actuators, 2023 In order to decrease the transmission of vibration and achieve the attenuation of the vibration magnitude of an isolated object, a new type of permanent and electromagnet composite vibration isolation system is designed based on negative stiffness theory.
Mingda Zhai +3 more
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An infinitely-stiff elastic system via a tuned negative-stiffness component stabilized by rotation-produced gyroscopic forces [PDF]
, 2016 An elastic system containing a negative-stiffness element tuned to produce positive-infinite system stiffness, although statically unstable as is any such elastic system if unconstrained, is proved to be stabilized by rotation-produced gyroscopic forces ...
Drugan, W. J., Kochmann, D. M.
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Buildings, 2023 In order to improve the damping capacity of building isolation system, this paper studies the damping isolation control system of the building structure based on negative stiffness.
Xiaofang Kang, Shuai Li, Jun Hu
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Design and Analysis of a Novel Gravity-Compensating Vertical Linear Motor
IEEE Access, 2021 We propose a vertical linear motor (VLM) for semiconductor manufacturing equipment that compensates for the weight of the moving part by using the balance of magnetic and elastic forces.
Buhyun Shin, Kyung-Min Lee
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Negative stiffness honeycomb material
, 2018 A honeycomb structure having high levels of recoverable energy absorption is provided. The honeycomb structure achieves high levels of recoverable energy absorption by incorporating cells that exhibit negative stiffness. In one embodiment, the cells exhibit negative stiffness via curved beam members configured to snap through to a second position upon ...
Carolyn Conner Seepersad +3 more
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Performance measures for single-degree-of-freedom energy harvesters under stochastic excitation [PDF]
, 2014 We develop performance criteria for the objective comparison of different classes of single-degree-of-freedom oscillators under stochastic excitation. For each family of oscillators, these objective criteria take into account the maximum possible energy ...
Joo, Han Kyul, Sapsis, Themistoklis P.
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