Upcoming Seminars

10.25.24 Dr. E. Farrell Helbling – Cornell University

Taking off: Autonomy for insect-scale robots

Date: October 25, 2024; Time: 2:30 PM Location: PWEB 175

Abstract: Countless science fiction works have set our expectations for small, mobile, autonomous robots for use in a broad range of applications. The ability to move through highly dynamic and complex environments can expand capabilities in search and rescue operations and safety inspection tasks. These robots can also form a diverse collective to provide more flexibility than a multifunctional robot. Advances in multi-scale manufacturing and the proliferation of small electronic devices have paved the way to realizing this vision with centimeter-scale robots. However, there remain significant challenges in making these highly-articulated mechanical devices fully autonomous due to the severe mass and power constraints. My research takes a holistic approach to navigating the inherent tradeoffs in each component in terms of their size, mass, power, and computation requirements. In this talk I will present strategies for creating an autonomous vehicle, the RoboBee – an insect-scale flapping-wing robot with unprecedented mass, power, and computation constraints. I will present my work on the analysis of control and power requirements for this vehicle, as well as results on the integration of onboard sensors. I also will discuss recent results that culminate nearly two decades of effort to create a power autonomous insect-scale vehicle. Lastly, I will outline how this design strategy can be readily applied to other micro and bioinspired autonomous robots.

Biographical Sketch: Farrell Helbling is an assistant professor in Electrical and Computer Engineering at Cornell University, where she focuses on the systems-level design of insect-scale vehicles. Her graduate and post-doctoral work at the Harvard Microrobotics Lab focused on the Harvard RoboBee, an insect-scale flapping-wing robot, and HAMR, a bio-inspired crawling robot. Her research looks at the integration of the control system, sensors, and power electronics within the strict weight and power constraints of these vehicles. Her work on the first autonomous flight of a centimeter-scale vehicle was recently featured on the cover of Nature. She is a 2018 Rising Star in EECS, the recipient of a NSF Graduate Research Fellowship, and co-author on the IROS 2015 Best Student Paper for an insect-scale, hybrid aerial-aquatic vehicle. Her work on the RoboBee project can be seen at the Boston Museum of Science, World Economic Forum, London Science Museum, and the Smithsonian, as well as in the popular press (The New York Times, PBS NewsHour, Science Friday, and the BBC). She is interested in the codesign of mechanical and electrical systems for mass-, power-, and computation-constrained robots.

10.18.2024 Dr. Jason Hirschey – National Renewable Energy Laboratory

Thermal Energy Storage for Grid Resilience

Date: October 18, 2024; Time: 2:30 PM Location: PWEB 175

Abstract: The energy sector is undergoing a major transformation.  More renewable energy resources are being added to the energy grid to replace aging fossil fuel power plants and meet growing demand.  However, these renewable energy resources are more intermittent and rely on favorable weather conditions to produce energy often resulting in a misalignment of energy generation and demand.  Thermal energy storage (TES) is a powerful tool to combat this misalignment.  This talk will discuss how TES can improve the resilience of the evolving energy grid.  Near-ambient temperature TES can complement building technologies to reduce building energy usage for heating and cooling, shift energy usage from on-peak to off-peak times, and extend the capabilities of existing building heating and cooling systems.  At elevated temperatures, TES can serve as a peaking resource delivering power to the grid by discharging high grade heat to a thermal power cycle when renewable generation drops or demand rises.  As the energy grid continues to evolve, TES provides unique opportunities to further enable widespread renewable energy deployment.

Biographical Sketch: Jason Hirschey is a postdoctoral researcher in the Thermal Energy Systems group at the National Renewable Energy Laboratory in Golden, Colorado.  He received his PhD in mechanical engineering from the Georgia Institute of Technology in 2022 on near ambient temperature thermal energy storage for building heating and cooling.  His current research focuses on thermal energy and heat transfer with special emphasis on concentrated solar power and high temperature thermal energy storage for power generation.