Now showing items 1-10 of 1003
DFT normal modes of vibration of the Au20 clusterDFT normal modes of vibration of the Au20 cluster
(Revista Mexicana de Física, 2009)
EXPERIMENTAL OBSERVATION OF NONLINEAR VIBRATIONS USING A CLOSED-LOOP VIBRATION SYSTEM
(Polish Acad Sciences, 2015-12-01)
This paper presents experimental observation of nonlinear vibrations in the response of a flexible cantilever beam to transverse harmonic base excitations around its flexural mode frequencies. In the experimental setup, ...
Active vibration control using delayed resonant feedback
Delayed feedback (DF) control is a well-established technique to suppress single frequency vibration of a non-minimum phase system. Modal control is also a well-established technique to control multiple vibration modes of ...
The effect of a vibrational mode on the electronic properties of a deformable spin-1 molecule, in a break junction setup.
(Instituto de Física da Universidade de São Paulo.São Paulo, 2014-05-21)
Using numerical renormalization group calculations, we study the effect of a vibrational mode on the electronic properties of a deformable spin-1 molecule, in a break junction setup. Stretching the molecule along ...
Active Vibration Control Using On-line Algebraic Identification and Sliding Modes
(Revista Computación y Sistemas; Vol. 13 No.3, 2010-02-18)
Abstract. In this paper is described the application of an on-line algebraic identification methodology for parameter and signal estimation in vibrating systems. The algebraic identification is employed to estimate the ...
Internal Conversion and Vibrational Energy Redistribution in Chlorophyll A
(American Chemical Society, 2015-12)
We have computationally investigated the role of intramolecular vibrational modes in determining nonradiative relaxation pathways of photoexcited electronic states in isolated chlorophyll A (ChlA) molecules. To simulate ...
On the influence of the mode-shapes of a marine propulsion shafting system on the prediction of torsional stresses
Torsional vibration predictions and measurements of a marine propulsion system, which has both damping and a highly flexible coupling, are presented in this paper. Using the conventional approach to stress prediction in ...
ANGULAR POSITIONING AND VIBRATION CONTROL OF A SLEWING FLEXIBLE CONTROL BY APPLYING SMART MATERIALS AND SLIDING MODES CONTROL
(Amer Soc Mechanical Engineers, 2017-01-01)
Flexible links undergoing a slewing motion are widely found in aerospace structures such as satellites and robotic manipulators. In this kind of systems, the lighter the structure the better is its performance and more ...