GENERALRESEARCHPUBLICATIONS
Direct doctoral track: 2014 – 2019
Advisor: Prof. Izhak Bucher
Full CV (2019) – Download
Contact Details
Email: amitdtechnion@gmail.com
Research Interests
- Mechanical vibrations and nonlinear dynamics.
- Parametric resonators and amplifiers.
- Acoustics, fluid structure interaction, and standing wave acoustic levitation.
- Experimental identification and modeling of vibrating structures.
Current Research
- Parametrically exciting an acoustically levitated sphere in a single-axis ultrasonic levitator.
- Parametrically excited mechanisms for selective detection in distributed systems and alternating the radiated acoustic spectrum.
Standing-Wave Acoustic Levitation
Pictures
[pb_slideshow group=”0″]Videos
Acoustically levitated particle/s by a single-axis acoustic levitator, subjected to principal parametric resonance. Operating mode shape of the actuator.Actuator induced field pressure.
Parametrically Excited Mechanisms
Pictures
[pb_slideshow group=”1″]Videos
The MDOF amplifier response to external excitation without parametric excitation and with parametric excitation tuned to the second mode (00:7).
The MDOF amplifier response to external excitation without parametric excitation and with parametric excitation tuned to the third mode (00:11).
The realization of a link (spring and dashpot) (00:11) between the first and third masses.
Topology Optimization
Videos
Test case – a beam’s cross section optimization for noise reductionJOURNAL PUBLICATIONS
- Dolev, A., Davis, S. & Bucher, I. (2019). Noncontact dynamic oscillations of acoustically levitated Particles by parametric excitation.Physical Reviw Applied, 12(3), 034031.
- Bucher, I., Gabai, R., Plat, H., Dolev, A., & Setter, E. (2019). Experimental travelling waves identification in mechanical structures. Mathematics and Mechanics of Solids, 24(1), 152-167.
- Dolev, A., & Bucher, I. (2018). Optimizing the dynamical behavior of a dual-frequency parametric amplifier with quadratic and cubic nonlinearities. Nonlinear Dynamics, 92(4), 1955-1974.
- Dolev, A., & Bucher, I. (2018). Dual frequency parametric excitation of a nonlinear, multi degree of freedom mechanical amplifier with electronically modified topology. Journal of Sound and Vibration, 419, 420-435.
- Gabai, R., Farkash, B., Plat, H., Dolev, A., & Bucher, I. (2018). A vibrating mechanism for large amplitude, non-reciprocal motion, exploiting multiple buckling modes. Mechanism and Machine Theory, 121, 613-632
- Tresser, S., Dolev, A., & Bucher, I. (2018). Dynamic balancing of super-critical rotating structures using slow-speed data via parametric excitation. Journal of Sound and Vibration, 415, 59-77.
- Dolev, A., & Bucher, I. (2016). Experimental and numerical validation of digital, electromechanical, parametrically excited amplifiers. Journal of Vibration and Acoustics, 138(6), 061001.
- Dolev, A., & Bucher, I. (2016). Tuneable, non-degenerated, nonlinear, parametrically-excited amplifier. Journal of Sound and Vibration, 361, 176-189.
PATENTS
CONFERENCES
Refereed Papers in Conference Proceeding
- Dolev, A., & Bucher, I. (2018, February). Levitated and parametrically excited sphere dynamics in a single-axis ultrasonic levitator. In NODYCON2019 – First International Nonlinear Dynamics Conference. Springer, Cham.
- Dolev, A., & Bucher, I. (2018, September). Balancing rotating structures using slow-speed data via optimized parametric excitation and nonlinear feedback. In ISMA2018 – International Conference on Noise and Vibration Engineering.
- Tresser, S., Dolev, A., & Bucher, I. (2018, September). Balancing High-Speed Rotors at Low Rotation Speeds Using Parametric Excitation. In International Conference on Rotor Dynamics (pp. 327-339). Springer, Cham.
- Dolev, A., & Bucher, I. (2017, June). In situ topology modification for increased sensitivity in a multi-degree-of-freedom parametric amplifier. In ICCES2017 – International Conference on Computational & Experimental Engineering and Sciences.
- Bucher, I., Tresser, S., & Dolev, A. (2017, June). Detecting imbalance of high-speed rotors with dual frequency parametric excitation. In ICCES2017 – International Conference on Computational & Experimental Engineering and Sciences.
- Dolev, A., & Bucher, I. (2016, September). Analytical, numerical and experimental investigation of a tunable, nonlinear multi-degree-of-freedom parametrically excited amplifier. In ISMA2016 – International Conference on Noise and Vibration Engineering.
- Dolev, A., & Bucher, I. (2015, August). A parametric amplifier for weak, low-frequency forces. In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (pp. V006T10A046-V006T10A046). American Society of Mechanical Engineers.
- Bucher, I., & Dolev, A. (2015, February). A new paradigm for parametric mechanical amplifier. In diname 2015 – Proceedings of the 17thInternational Symposium on Dynamic Problems of Mechanics. Associação Brasileira de Engenharia e Ciências Mecânicas.