I am the Department Head of the Efficient Energy Transfer (ηet) Dept., which covers numerous research projects, targeting energy-efficient Industry 4.0 technology. My department within Nokia Bell Labs is focused on solving industrially relevant problems in electronics cooling, power-autonomous sensors, wearables, acoustics and advanced battery technology.
The projects on the team range from fundamental analysis of physical phenomena to overcoming practical implementation challenges. To address this range of projects, the team encompasses a diverse, multi-disciplinary team covering heat transfer, fluid dynamics, acoustics, electronics and material science. This is a high-performing team with an excellent track record in patent filings and high-quality publications. The research I oversee spans multiple scales, from the nano- and micro-scales to the macro scale.
Background: I’ve been managing this team that consists of research engineers and scientists with experience ranging from 5 to 20+ years since April 2016. I joined Bell Labs as a member of technical staff in 2011 and worked on novel vibration energy harvesters for wireless sensor networks. I have a background in Aeronautical Engineering and hold a PhD degree in damage mechanics of composite materials for aircraft structures. Both B.Eng and PhD. degrees were received from the University of Limerick. My technical experience is in both experimental and numerical analysis techniques, with a particular emphasis on non-linear finite element modelling.
Ph.D. University of Limerick (Damage Mechanics of Composite Materials)
B. Eng, Aeronautical Engineering, University of Limerick
Selected articles and publications
Vibration Energy Harvesting
Nico, V, Boco, E, Frizzell, R and Punch, J, 2015, “A C-battery scale energy harvester, Part A: System dynamics”, In: Proceedings of the ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS2015), September 21-23, 2015, Colorado Springs, CO, USA.
Boco, E, Nico, V, Frizzell, R and Punch, J, 2015, “A C battery-scale energy harvester, Part B: Transducer optimization and modeling”, In: Proceedings of the ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS2015), September 21-23, 2015, Colorado Springs, CO, USA.
O’Donoghue, D, Frizzell, R and Punch, J. 2015, “The influence of mass configurations on bandwidth in velocity amplified vibrational energy harvesters”, In: Proceedings of the ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS2015), September 21-23, 2015, Colorado Springs, CO, USA.
(Best Paper Award) Boco, E, Nico, V, O’Donoghue, D, Frizzell, R, Kelly, G and Punch, J, 2015, Nonlinearity of a 2 Degree of Freedom Velocity Amplified Electromagnetic Vibrational Energy Harvester and Optimization of Coil Parameters, In: Proceedings of SMARTGREENS: 4th International Conference on Smart Cities and Green ICT Systems, 20 - 22nd May 2015, Lisbon, Portugal.
F. Cottone, R. Frizzell, S. Goyal, G. Kelly and J. Punch, “Enhanced vibrational energy harvester based on velocity amplification”, Journal of Intelligent Material Systems and Structures, 2013; 25(4), p. 443-451.
Solar Energy Harvesting
Mathews, I., Kelly, G., King, P. and Frizzell, R., “GaAs solar cells for Indoor Light Harvesting”, 40th IEEE Photovoltaics Specialists Conference, Denver, Colorado, USA, June 2014.
Lei, S., Frizzell, R. and Enright, R., “Benchmark numerical simulations of solar thermoelectric generators”, Proceedings of the 15th International Heat Transfer Conference, IHTC, Kyoto, Japan, August 2014.
Enright, R, Lei, S, Nolan, K, Mathews, I, Shen, A, Levaufre, G, Frizzell, R, Guang-Hua, D and Hernon, D, 2014 “A Vision for Thermally Integrated Photonics Systems”, Bell Labs Technical Journal, Vol. 19, p. 31-45, 2014.
Selected Damage in Composites Materials Publications
Frizzell, R.M., McCarthy, C.T., McCarthy, M.A. “Numerical method to control high levels of damage growth using an implicit finite element solver applied to notched cross-ply laminates”, Composites Structures, 2014, Vol. 110, p. 51-61.
Frizzell, R.M., McCarthy, C.T., McCarthy, M.A. “Simulating Damage and Delamination in Fibre Metal Laminate Joints using a Three-Dimensional Damage Model with Cohesive Elements and Damage Regularisation”, Composites Science and Technology, Volume 71, Issue 9, June 2011, Pages 1225–1235.
Frizzell, R.M., McCarthy, C.T., McCarthy, M.A. “A Comparative Study of the Pin-Bearing Responses of Two Glass-Based Fibre Metal Laminates”, Composites Science and Technology, Volume 68, Issues 15-16, December 2008, Pages 3314-3321