Author : David B. Doman
Release : 2002
Genre : Launch vehicles (Astronautics)
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Footprint Determination for Reusable Launch Vehicles Experiencing Control Effector Failures - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Footprint Determination for Reusable Launch Vehicles Experiencing Control Effector Failures write by David B. Doman. This book was released on 2002. Footprint Determination for Reusable Launch Vehicles Experiencing Control Effector Failures available in PDF, EPUB and Kindle. The ability to compute the maximum area on the earth's surface (footprint) reachable by an autonomous air vehicle can be useful in planning for the vehicle's safe operations. The information can be important when the vehicle experiences subsystem failures causing it to be unable to maintain its nominal performance. In this paper, we present a method to calculate the footprint of a reusable launch vehicle that experiences a failure in one or more of its aero-control surfaces. During a control effector failure, the maximum attainable moments of the vehicle are reduced, which may decrease the range of conditions that the vehicle can maintain a trimmed condition. Additionally, the lift and drag characteristics of the vehicle can change when control effectors are moved to off-nominal positions to correct for moment imbalance caused by failures or damage. As a result, the footprint of the vehicle is reduced. A technique for calculating the available effectiveness of the aero-control surfaces is used in conjunction with a footprint generation algorithm to include the effects of rotational trim on the vehicle footprint.