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Mechanical & Aerospace Engineering Henry Samueli School of Engineering University of California, Irvine K. D. Mease Professor SAE Aerospace Control and Guidance Systems Committee Williamsburg, Virginia October 11, 2006. UCI Mechanical & Aerospace Engineering. 21 Faculty, 4 Adjunct
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Mechanical & Aerospace EngineeringHenry Samueli School of Engineering University of California, Irvine K. D. Mease Professor SAE Aerospace Control and Guidance Systems Committee Williamsburg, Virginia October 11, 2006
UCI Mechanical & Aerospace Engineering 21 Faculty, 4 Adjunct 460 Undergraduate students 100 Graduate students
Aerospace Program of Excellence • 1 Guidance, Navigation and Control assistant professor hired last year • Recruiting for 4 new aerospace faculty • 2 Structures • 1 Space Power and Propulsion • 1 Space Systems
Research and Educational Activities of K. Mease Research Projects: • Model Decomposition for Multiple Time-Scale Nonlinear Dynamical Systems (NSF) • Entry Guidance for Mars Landing (JPL) • Flight Control via Internal Moving Mass (Optimal Synthesis, MDA) Undergraduate Design Project: UCI Rocket Project (25 students) K-12 Outreach: COSMOS summer program (25 students) Classroom Teaching: Undergrad: Dynamics and Control of Flight Vehicles Grad: Applied Math, Optimal Control, Nonlinear Control
Hypersonic Entry Guidance Advances Motivation: • Reduce 3D position error at supersonic decelerator deployment point • Accommodate broader class of landers relative to MSL baseline guidance • Angle of attack modulation • Higher L/D • Active path constraints (heating, g-load, dynamic pressure) • Increase levels of adaptability, mission flexibility and on-board autonomy Benefits: • Pinpoint delivery to parachute deployment • Reduce propellant required for pinpoint landing • Establish mature guidance approach for larger range of landers MSL type lander L/D 0.18 – 0. 25 Ellipsled L/D 0.3 – 0.8 Human Mission
Improved Chute Deploy Position Control • Developed “position guidance” • Switch from drag-based hypersonic guidance to position guidance to improve parachute deployment position control • Vertical as well as horizontal position control at chute deploy is important • Enables higher elevation landing sites and reduces propellant req’ts. for pinpoint landing terminal descent Before After
COSMOS • COSMOS = California State Summer School for Mathematics & Science. Advisory Board Chair: Gayle Wilson, former 1st Lady of CA • 4 week summer residential academic experience for top CA high school students in math and science • Mission statement: “… motivate the most creative minds of the new generation of prospective scientists, engineers and mathematicians …” • Programs at UCI, UCSD, UCD, UCSC • UCI Mechanical and Aerospace Engineering Cluster 2003, 2004, 2006. Lectures and labs. Design, build, fly R/C airplanes.