Topic
Deflection (engineering)
About: Deflection (engineering) is a research topic. Over the lifetime, 30862 publications have been published within this topic receiving 298849 citations.
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TL;DR: In this article, the bending and free flexural vibration behavior of sandwich plates with carbon nanotube (CNT) reinforced facesheets are investigated using QUAD-8 shear flexible element developed based on higher-order structural theory.
143 citations
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TL;DR: In this article, the authors presented a finite element model with nodal degrees of freedom which can satisfy all the forced and natural boundary conditions of a Timoshenko beam, and the mass and stiffness matrices of the element were derived from kinetic and strain energies by assigning polynomial expressions for total deflection and bending slope.
143 citations
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TL;DR: In this article, the authors determined the lead-lag natural frequencies and mode shapes of a radial beam mounted on a rotating disc at a 90° setting angle by means of the finite element technique, a high precision beam element based on a fifth degree polynomial being used as displacement function, with deflection and slope at the ends as common nodal degrees of freedom.
142 citations
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TL;DR: This paper describes theoretical and experimental work performed on the modelling and vibration control of a hanging flexible beam and the design and laboratory implementation of low-authority controllers based upon concepts of disturbance propagation and reflection.
Abstract: This paper describes theoretical and experimental work performed on the modelling and vibration control of a hanging flexible beam. The synthesis and laboratory implementation of low-authority controllers based upon feedback of local velocity to actuator force has been the subject of previous studies. This paper extends this work with the design and laboratory implementation of low-authority controllers based upon concepts of disturbance propagation and reflection. Control forces are applied to the lower end of the hanging beam. Compensators are derived which feed back local deflection and slope to control force and moment with the goal of minimizing the reflection of energy at the lower end. Several of these compensators are approximated by analog electronic filters for laboratory implementaipn. The performance of these wave-absorbing compensators is compared with that of velocity feedback.
142 citations
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TL;DR: In this paper, nonlinear vibrations at a Hertzian contact are studied by the perturbation technique known as the method of multiple scales, and the average normal contact deflection during oscillations is smaller than the static deflection under the same average load.
Abstract: Nonlinear vibrations at a Hertzian contact are studied by the perturbation technique known as the method of multiple scales. As a result of the nonlinear Hertzian stiffness, the average normal contact deflection during oscillations is smaller than the static deflection under the same average load
140 citations