Browsing by Author "Dr. Fred DeJarnette, Committee Member"

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    Design and Modeling of a Mars Tumbleweed Rover
    (2007-07-24) Wilson, Jamie Leigh Miss; Dr. Andre P. Mazzoleni, Committee Chair; Dr. Fred DeJarnette, Committee Member; Dr. Ashok Gopalarathnam, Committee Member
    A Mars Tumbleweed Rover is a spherical, wind driven, planetary rover. Compared with conventional rovers, a tumbleweed rover can travel further faster and gain access to areas such as valleys and chasms that previously were inaccessible. This paper will present results of the design, testing, mathematical modeling, and computer simulation of a tumbleweed rover propelled by a constant wind loading over a rough surface representing the planet's surface. Results will show different trajectories for specific cases where initial conditions such as mass distribution and angular velocity are varied.
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    A Study of the Advantages of Using a Tether Ballast Mass as Part of the Control System in a Solar Sail Based Solar Storm Warning Mission
    (2007-11-29) Hays, Scott; Dr. Larry Silverberg, Committee Member; Dr. Fred DeJarnette, Committee Member; Dr. Andre Mazzoleni, Committee Chair