BEGIN:VCALENDAR VERSION:2.0 PRODID:-//wp-events-plugin.com//6.6.4.4//EN TZID:Asia/Jerusalem X-WR-TIMEZONE:Asia/Jerusalem BEGIN:VEVENT UID:0-1647@aerospace.technion.ac.il DTSTART;TZID=Asia/Jerusalem:20260330T133000 DTEND;TZID=Asia/Jerusalem:20260330T143000 DTSTAMP:20260324T092329Z URL:https://aerospace.technion.ac.il/events/dynamic-identification-and-con trol-of-ultralight-deployable-space-structures/ SUMMARY:Dynamic Identification and control of Ultralight Deployable Space S tructures DESCRIPTION:Lecturer:Eyal Baruch\n Faculty:Lynn Booth and Kent Kresa Depart ment of Aerospace\n Institute:California Institute of Technology\n Locatio n:\n Zoom: https://technion.zoom.us/j/94130704561 \n Abstract: As space mi ssions such as solar sails\, reflector antennas and solar arrays increase in size\, their dynamics become ever more important\, since large deflecti ons can lead to efficiency loss\, damage\, or stability loss. The first st ep in addressing these problems is the accurate identification of system d ynamics\, most notably vibration mode shapes\, natural frequencies\, and d amping ratios. However\, these systems often cannot be tested at full scal e prior to deployment\, and numerical simulations may overlook key compone nts\, such as the correct damping mechanisms. This problem is further inte nsified by the complexity of carbon fiber thin shells\, which serve as the fundamental building blocks of ultralight deployable structures. For such systems\, classical similitude methods such as dimensional analysis (DA) are inapplicable\, since parameters such as shell thickness and the stiffn ess matrix cannot be experimentally scaled.\n\nTo address these challenges \, I propose a data driven similitude method that exploits multiple scaled experiments to overcome the issue of distortion in partial similitude. In addition\, to account for the inherent uncertainty in ultralight thin-she ll structures\, this method is extended into a Bayesian-inference-based st atistical similitude model\, which allows for uncertainty quantification i n the acquired scaling law. The model is constructed from simulated data a nd updated based on experimental measurements\, enabling statistical model updating of the scaling model. Finally\, I present a stiff switching damp ing mechanism that leverages the tensioning typical of deployable space st ructures to actively suppress vibrations.\n\nBio:\n\nDr. Eyal Baruch is a Postdoctoral Scholar in the Space Structures Laboratory at Caltech\, condu cting research as part of the Space Solar Power Project (SSPP). He earned his Bachelor’s degree from Tel Aviv University\, and  his Master’s an d PhD degrees from the Technion.\n\n \;\n\nPlease be advised that all seminars scheduled for the near future\, and until further notice\, will b e held online only via Zoom. This transition allows us to maintain our aca demic calendar and ensure the safety and participation of our community re gardless of location. We are committed to ensuring these virtual sessions are delivered promptly and effectively. We appreciate your continued flexi bility and look forward to seeing you in our virtual seminars.\n Details: \n CATEGORIES:Seminars END:VEVENT BEGIN:VTIMEZONE TZID:Asia/Jerusalem X-LIC-LOCATION:Asia/Jerusalem BEGIN:DAYLIGHT DTSTART:20260327T030000 TZOFFSETFROM:+0200 TZOFFSETTO:+0300 TZNAME:IDT END:DAYLIGHT END:VTIMEZONE END:VCALENDAR