Frontiers of Engineering: Reports on Leading-Edge by National Academy of Engineering

By National Academy of Engineering

Papers from the 7th Annual Symposium on Frontiers of Engineering. Softcover.

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Extra resources for Frontiers of Engineering: Reports on Leading-Edge Engineering from the 2001 NAE Symposium on Frontiers of Engineering

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J. Pister. 1999. Next century challenges: Mobile networking for smart dust. Pp. 271-278 in Proceedings of the Fifth Annual ACM/IEEE International Conference on Mobile Computing and Networking. : ACM Press. Morris, S. 1997. Design and flight test results for micro-sized fixed-wing and VTOL aircraft. , February 19–20, 1997. htm>. Shephard Press. 2000. Shephard’s Unmanned Vehicle Systems Handbook 2001. Bucks, England: The Shephard Press. Toward Micromechanical Flyers RONALD S. F EARING Department of Electrical Engineering and Computer Sciences University of California, Berkeley In this paper I describe some of the microflyers being developed around the world and the engineering challenges they present.

Small gimbal camera systems are being developed for the latest mini-UAVs. Data quality is closely linked to the postprocessing of the image data collected by UAVs. Raw video images must be adjusted for camera alignment, combined into larger image maps (mosaics), and possibly have features identified and extracted. ) to maximize their value. Currently, little commercial software has been developed to process the vast amount of video data that would be generated by fleets of mini-UAVs. The full potential of UAV fleets will only be realized when the data-fusion bottleneck is eliminated.

Keeping the mass of the device under 100 mg will require more compact actuators. I expect that shrinking bearings further to create an efficient, high energy density, submillimeter magnetic motor will be difficult. Thus, in terms of miniaturization, one is encouraged to think of beating wings rather than rotary wings. Flapping wings can change the direction of applied torques in a wing beat, potentially improving maneuverability. A mock-up of the Berkeley micromechanical flying insect (MFI) is shown in Figure 5.

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