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Comparison of low-thrust control laws for application in planetocentric space
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Smith, David A. Falck, Robert D. Sjauw, Waldy K. |
| Copyright Year | 2014 |
| Description | Recent interest at NASA for the application of solar electric propulsion for the transfer of significant payloads in cislunar space has led to the development of high-fidelity simulations of such missions. With such transfers involving transfer times on the order of months, simulation time can be significant. In the past, the examination of such missions typically began with the use of lower-fidelity trajectory optimization tools such as SEPSPOT to develop and tune guidance laws which delivered optimal or near- optimal trajectories, where optimal is generally defined as minimizing propellant expenditure or time of flight. The transfer of these solutions to a high-fidelity simulation is typically an iterative process whereby the initial solution may nearly, but not precisely, meet mission objectives. Further tuning of the guidance algorithm is typically necessary when accounting for high-fidelity perturbations such as those due to more detailed gravity models, secondary-body effects, solar radiation pressure, etc. While trajectory optimization is a useful method for determining optimal performance metrics, algorithms which deliver nearly optimal performance with minimal tuning are an attractive alternative. |
| File Size | 960743 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140011269 |
| Archival Resource Key | ark:/13960/t0ht7mz9q |
| Language | English |
| Publisher Date | 2014-07-28 |
| Access Restriction | Open |
| Subject Keyword | Solar Electric Propulsion Feedback Control Spacecraft Guidance Gravitation Algorithms Simulation Cislunar Space Trajectories Control Theory Perturbation Trajectory Optimization Payloads Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
