Download PDF by Eric Feron (eds.): Advances in Control System Technology for Aerospace

By Eric Feron (eds.)

ISBN-10: 3662476932

ISBN-13: 9783662476932

ISBN-10: 3662476940

ISBN-13: 9783662476949

This publication is dedicated to manage process expertise utilized to aerospace and covers the 4 disciplines Cognitive Engineering, machine technological know-how, Operations study, and Servo-Mechanisms. This edited e-book follows a workshop held on the Georgia Institute of know-how in June 2012, the place the latest most crucial aerospace demanding situations, together with aerospace autonomy, safety-critical embedded software program engineering, and sleek air transportation have been mentioned over the process days of severe interactions between best aerospace engineers and scientists. Its content material offer a photograph of modern aerospace keep an eye on learn and its destiny, together with Autonomy in area functions, regulate in house functions, Autonomy in aeronautical functions, Air transportation, and Safety-critical software program engineering.

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The JPL legged ATHLETE robot, designed to handle cargo in support of a sustained human presence on the moon, has traversed rocky and sloped terrain at a number of analog sites in California and Arizona, including Black Point Lava Flow [134]. For slopes greater than 20◦ , the ATHLETE rover would also use a tether. The Axel rovers7 [97], designed to explore very steep terrains, have demonstrated traversal of near-vertical slopes and sloped terrain littered with large boulders. Other robots that use leg-mounted active anchors in lieu of tethers have been proposed [8] and developed [105].

Their key advantage is that, with a fairly simple actuation mechanism, they are capable of large surface coverage with relatively little control effort. Moreover, they are less sensitive to the regolith properties of small body objects. Indeed, unlike other types of actuation, hopper designs seek to exploit the low gravity to their advantage, rather than facing it as a constraint. A particularly useful bonus of internal actuation mechanisms on hopper platforms is self-containment of moving parts, which significantly reduces the problem of dust contamination and thermal control.

The critical concerns for this system would be the available solar cell area and the possibility of solar cell regolith dust build-up. Contact with the surface or the use of thrusters that stir up dust may make solar cell/secondary battery choices unacceptably risky. Given the uncertainty of the dust environment, it may be that miniaturized Radioisotope Thermoelectric Generators (RTGs) would provide a lower-risk power alternative, despite the cost and regulatory issues. Recent breakthroughs in this field might make this option viable.

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Advances in Control System Technology for Aerospace Applications by Eric Feron (eds.)


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