K. Mease 10/11/06 1 Mechanical & Aerospace Engineering Henry Samueli School of Engineering University of California, Irvine K. D. Mease Professor SAE Aerospace.

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Presentation transcript:

K. Mease 10/11/06 1 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

K. Mease 10/11/06 2 UCI Mechanical & Aerospace Engineering 21 Faculty, 4 Adjunct 460 Undergraduate students 100 Graduate students

K. Mease 10/11/06 3 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

K. Mease 10/11/06 4 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

K. Mease 10/11/06 5 Vehicle Control via Moving Mass

K. Mease 10/11/06 6 Hypersonic Entry Guidance

K. Mease 10/11/06 7 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 Ellipsled L/D 0.3 – 0.8MSL type lander L/D 0.18 – Human Mission

K. Mease 10/11/06 8 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

K. Mease 10/11/06 9 UCI Rocket Project

K. Mease 10/11/06 10 UCI Rocket Project

K. Mease 10/11/06 11 UCI Rocket Flight Data, Sept. 9, 2006

K. Mease 10/11/06 12 COSMOS COSMOS = California State Summer School for Mathematics & Science. Advisory Board Chair: Gayle Wilson, former 1 st 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, Lectures and labs. Design, build, fly R/C airplanes.