Prof. Oded Gottlieb

Faculty:

Mechanical Engineering

Main energy field:

Renewable Energy Sources [aero/hydro kinetic power harvesting in controllable synchronized multi-element structural arrays].

About:

BSc 1983 Technion Civil Engineering
MSc 1987 Technion Civil Engineering
PhD 1991 Oregon State University Ocean Engineering (applied math)

Research Area in Energy:

Energy harvesting from fluid-structure interaction – Harnessing hydrokinetic power from vortex-induced vibration of elastically constrained cylinder arrays in uniform flow has been shown to yield a power density of several hundred W/m3.We make use of a combined asymptotic and numerical methodology to derive/investigate a nonlinear model governing this complex spatio-temporal process and predict/control its optimal performance.

Photothermal energy conversion – Spontaneous vibration of thermo-visco-elastic elements subject to laser irradiation have been used for both sensing and actuation of micro and nano-scale systems which exhibit complex bifurcations including non-stationary chaotic-like dynamics. We investigate the resulting photothermal energy conversion via multiple-scale asymptotics and numerical analysis.

Research Interests:

Renewable Energy Sources [aero/hydro kinetic power harvesting in controllable synchronized multi-element structural arrays].
Energy Conversion [photo-thermal dynamics in nonlinear nano-opto-electro-mechanical systems].
Optical Atmospheric Energy Transmission [high altitude laser source stabilization via tethered lighter-than-air systems].

Selected Publications:

Habib G., Fainshtein E., Wolf K. and Gottlieb O., The influence of nonlinear damping on the response of a piezoelectric cantilever sensor in a symmetric or asymmetric configuration, Smart Structures and Systems, 30, 3, 239-243 (2022).

Hollander, E. and Gottlieb, O., Global bifurcations and homoclinic chaos in nonlinear panel optomechanical resonators under combined thermal and radiation stresses, Nonlinear Dynamics, 103, 3371-3405 (2021).

Ishay M., Gottlieb, O. and Degani D. Computational fluid-structure interaction of a restrained ogive-cylindrical body with a blunt elliptical base at high incidence, Physical Review Fluids, 6, 014401, 1-27 (2021).