... 2016 27 05 2017 Dynamics Heat transfer Mechanical devices Stability Thin Films Vibration Most high-performance commercial machinery operates on fluid-film bearings due to the lifetime requirements as well as combinations of large rotor diameter and high running speed. The wedge...

...) as well as examples of exploiting structural instabilities in acoustic and mechanical metamaterials. with amplitude v ̂ and frequency ω ∈ ℝ (or, more generally, superpositions of harmonic solutions of the above form with different eigenfrequencies). Stability requires Im ( ω...

... upon in Sec. 4. Atmospheric ventilation, in particular, can occur on many marine systems operating at or near the free surface, including propellers, turbines, waterjets, dynamic positioning devices, hydrofoils, struts, rudders, fins, stabilizers, ship hulls [ 4 ], as well as narrow side hulls and hard...

... of composites to enable passive morphing capabilities to delay cavitation and improve overall energy efficiency, agility, and dynamic stability. Moreover, active materials can be embedded inside composites to enable energy harvesting, in situ health and condition monitoring, mitigation and control of flow...

...) , as was demonstrated in a comparative stability analysis [ 156 ]. Second, if a nonzero base flow scenario is considered, however, assumption (12) turned out to be an oversimplification even for the wall-parallel component. Furthermore, assumption (14) turned out to not be influenced by the presence of a base flow...

... with Galerkin models based on unstable global modes and balanced modes. Particular attention has to be paid to stability–robustness properties of the control law. Specifically, we show that large delays and strong amplification between the control input and the estimation sensor may be detrimental both...

..., theoretical and practical stability, attractor robustness, basin erosion, and dynamical integrity, recent results obtained for a variety of systems and models of interest in applied mechanics and structural dynamics are overviewed in terms of analysis of nonlinear phenomena and their control. The global...

... wavenumber, β , of the most amplified stationary mode, i.e., the maximum spectral component of a relatively broad spectral peak reflecting the band of excited crossflow modes, was generally predicted by local linear stability theory (which increased approximately linearly with R ). After the onset...

... and increased loading intensity requires studies on the influence of the rate of loading and material characteristics on dynamic buckling behavior. The present review article is focused on summarizing the state of the art related to the inelastic dynamic stability and postbuckling behavior of various basic...

... is but briefly discussed. In addition, studies dealing with particular dynamical problems involving finite deformations, eg, dynamic buckling, stability, and flutter of shells coupled to flowing fluids, are also discussed. This review is structured as follows: after a short introduction on some...

...A Bacciotti; L Rosier; Zongli Lin 11 09 2002 control theory Lyapunov methods stability nonlinear systems reviews 9R17. Liapunov Functions and Stability in Control Theory. Lecture Notes in Control and Information Sciences 267. - A Bacciotti (Dipt di Matematica...