نتایج جستجو برای: non linear vibrating beams

تعداد نتایج: 1734320  

2009
Silvano Erlicher Frédéric Bourquin

The vibrating behaviour of thin structures is affected by prestress states. Hence, the effects of thermal prestress are important research subjects in view of ambient vibration monitoring of civil structures. The interaction between prestress, geometrically non-linear behaviour, as well as damping and its coupling with the aforementioned phenomena has to be taken into account for a comprehensiv...

Journal: :Latin American Journal of Solids and Structures 2013

2016
Isabela R. BIRS Cristina I. MURESAN Silviu FOLEA Ovidiu PRODAN Levente KOVACS

Cantilever beams have an important role in day to day life in bridges, towers, buildings and aircraft wings, making active vibration suppression a highly researched field. The purpose of this paper is to detail the design of fractional order PID controllers for smart beams. A novel tuning procedure is proposed based on solving a set of nonlinear complex equations that directly aim at reducing t...

2009
Stephan V. Joubert Michael Y. Shatalov

In 1890 Bryan observed that when a vibrating structure is rotated the vibrating pattern rotates at a rate proportional to the rate of rotation. During investigations of the effect in various solid and fluid-filled objects of various shapes, an interesting commonality was found in connection with the gyroscopic effects of the rotating object. The effect has also been discussed in connection with...

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