Distance Fields Over Grids Method for Aircraft Envelope Determination

R Helsen; Erik-Jan van Kampen; Coen de Visser; Qiping Chu

doi:10.2514/1.G000824

Distance Fields Over Grids Method for Aircraft Envelope Determination

R Helsen, Erik-Jan van Kampen, Coen de Visser, Qiping Chu

Control & Simulation

Research output: Contribution to journal › Article › Scientific › peer-review

18 Citations (Scopus)

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Abstract

In this research, the concept of posing the flight envelope as a reachable set is ex- plored further and it is investigated whether the "Distance Fields Over Grids (DFOG)" method for reachability computations is a viable method for envelope determination. The DFOG method approximates the reachable set of a dynamic system by solving a number of optimal control problems over a grid in the state-space. Then, the end- points of the resulting optimal trajectories are used to provide an approximation of the reachable set. The DFOG method is improved by using a 2nd order RK method for the state discretization and developing a new adaptive grid selection approach. This method is then applied to the computation of a four-dimensional reachable set of a nonlinear high-fidelity F-16 model. The results are compared to results obtained pre- viously with level sets and show that the DFOG method provides a less conservative approximation to the reachable set. 1

Original language	English
Pages (from-to)	1470-1480
Journal	Journal of Guidance, Control, and Dynamics: devoted to the technology of dynamics and control
Volume	39
Issue number	7
DOIs	https://doi.org/10.2514/1.G000824
Publication status	Published - 2016

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10.2514/1.G000824

2016_Helsen_Distance Fields Over Grids Method for Aircraft Envelope Determination - ReviewedAccepted author manuscript, 869 KBLicence: CC BY-NC

Cite this

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Distance Fields Over Grids Method for Aircraft Envelope Determination

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