3 papers
physics.app-ph2018
Balancing rotating structures using slow-speed data via optimized parametric excitation and nonlinear feedback
Amit Dolev, Shachar Tresser, Izhak Bucher
The paper presents an improved mass balancing procedure for fast rotating machinery, while it is being rotated at speeds considerably slower than the "critical speeds", where dange…
physics.app-ph2018
Analytical, numerical and experimental investigation of a tunable, nonlinear multi-degree-of-freedom parametrically excited amplifier
Amit Dolev, Izhak Bucher
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 a…
physics.app-ph2018
Optimizing the dynamical behavior of a dual frequency parametric amplifier with quadratic and cubic nonlinearities
Amit Dolev, Izhak Bucher
The paper describes a novel parametric excitation scheme that acts as a tunable amplifier by controlling two pumping signals and two nonlinear feedback terms. By modulating the sti…