@inproceedings{6f7173f5837948af8db3e0754d454b42,
title = "Analytical, numerical and experimental investigation of a tunable, nonlinear multi-degree-of-freedom parametrically excited amplifier",
abstract = "A tunable, multi-degree-of-freedom, parametrically excited amplifier is introduced as an apparatus capable of shifting slow, weak signals to higher frequencies, by exploiting the amplifier natural resonances via controlled parametric excitation and nonlinear feedback. This device can find use as a signal amplifier and as a spectrum control device. A tuned dual-frequency signal is created to parametrically excite (pump) the system and produce the desired energy shift. The pump signal is applied by a controlled electromechanical actuator, and is modified in-situ according to the slow frequency signal and the desired response. A three DOF model is introduced, and the governing nonlinear EOM are derived and solved analytically via asymptotic methods and verified with numerical simulations. A parametric design of an experimental rig was carried out, and the importance of experimental calibration and system identification is emphasized. Some preliminary experimental results are provided with favorable agreement with the theory.",
author = "A. Dolev and I. Bucher",
year = "2016",
language = "الإنجليزيّة",
series = "Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics",
publisher = "KU Leuven, Departement Werktuigkunde",
pages = "1551--1565",
editor = "Paul Sas and David Moens and {van de Walle}, Axel",
booktitle = "Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics",
note = "27th International Conference on Noise and Vibration Engineering, ISMA 2016 and International Conference on Uncertainty in Structural Dynamics, USD2016 ; Conference date: 19-09-2016 Through 21-09-2016",
}