The UCF Mechanical and Aerospace Engineering Department continues the Seminar Series by welcoming Dr. Sergio Pellegrino on Friday, April 20th from 1:30-2:30 PM in ENGR II, Room 103. Dr. Pellegrino will present his topic “Structural Architectures for Giant Coilable Spacecraft”.
(Abstract) New kinds of spacecraft, with specifically optimized architectures, may be the best answer to society’s need for cost-efficient space-based infrastructure. Instead of the traditional spacecraft bus, mostly filled with electronic systems, and attached to large deployable appendages that provide power, communication and other functions, alternative structural architectures can provide more efficient, integrated solutions.
In this talk, I will focus on a novel spacecraft architecture, currently under development by the Space Solar Power Project at Caltech, that has the specific purpose of collecting sunlight, converting it into RF power, and radiating it in a narrow beam. This architecture was inspired by kirigami, the extension of Japanese paper-folding that also includes cutting of the paper. Its realization involves thin shell structures that are folded into a tight nested coil. Fundamental research in the mechanics of coiling and uncoiling of thin shells, and the analysis of stress concentrations in coiled thin shell structures with complex geometries will be presented.
Dr. Sergio Pellegrino is Joyce and Kent Kresa Professor of Aeronautics and Civil Engineering at the California Institute of Technology, Senior Research Scientist at the Jet Propulsion Laboratory, and Co-Director of the Space Solar Power Project. He received a Laurea in Civil Engineering from the University of Naples and a Ph.D. in Structural Mechanics from the University of Cambridge. He was on the faculty at the University of Cambridge prior to joining Caltech. Dr. Pellegrino is a Fellow of the Royal Academy of Engineering, a Fellow of AIAA and a Chartered Structural Engineer. He is currently the President of the International Association for Shell and Spatial Structures (IASS) and the founding chair of the AIAA Spacecraft Structures Technical Committee. Dr. Pellegrino has authored over 300 technical publications, and received several awards including ICE James Watt Medal, AIAA Gossamer Spacecraft Forum Best Paper Award, IASS Tsuboi Award, ASME/Boeing Best Paper Award, and ASME Mechanisms and Robotics Committee Best Paper Award, Pioneers’ Award from the University of Surrey, and NASA Robert H. Goddard Exceptional Achievement Team Awards. His area of research is the mechanics of lightweight structures, focusing on packaging, deployment, shape control and stability, novel concepts for future space telescopes, spacecraft antennas, and space-based solar power systems.