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Optimization of low-thrust spiral trajectories by collocation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dankanich, John W. Falck, Robert D. |
| Copyright Year | 2012 |
| Description | As NASA examines potential missions in the post space shuttle era, there has been a renewed interest in low-thrust electric propulsion for both crewed and uncrewed missions. While much progress has been made in the field of software for the optimization of low-thrust trajectories, many of the tools utilize higher-fidelity methods which, while excellent, result in extremely high run-times and poor convergence when dealing with planetocentric spiraling trajectories deep within a gravity well. Conversely, faster tools like SEPSPOT provide a reasonable solution but typically fail to account for other forces such as third-body gravitation, aerodynamic drag, solar radiation pressure. SEPSPOT is further constrained by its solution method, which may require a very good guess to yield a converged optimal solution. Here the authors have developed an approach using collocation intended to provide solution times comparable to those given by SEPSPOT while allowing for greater robustness and extensible force models. |
| File Size | 1362505 |
| Page Count | 24 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120014379 |
| Archival Resource Key | ark:/13960/t02z6755w |
| Language | English |
| Publisher Date | 2012-09-01 |
| Access Restriction | Open |
| Subject Keyword | Astrodynamics Nasa Programs Electric Propulsion Aerodynamic Drag Gravitation Collocation Trajectories Solar Radiation Trajectory Optimization Convergence Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
