Application of ion electrospray propulsion to lunar and interplanetary missions

High specific impulse electric propulsion systems enable ambitious lunar and interplanetary missions that return a wealth of scientific data. Many of these technologies are difficult to scale down, meaning the spacecraft are relatively massive and expensive. The Space Propulsion Lab (SPL) at the Massachusetts Institute of Technology (MIT) is developing compact, high specific impulse ion electrospray thrusters which do not suffer from the same sizing limitations. The Ion Electrospray Propulsion System (iEPS) is tailored for small spacecraft and can perform high AV maneuvers. This enables a plethora of lunar and interplanetary missions using nanosatellites, which can lead to substantial cost reductions. The main objective of the research presented in this thesis is to develop a guidance and control (GC) architecture for small spacecraft using iEPS modules for main propulsion and attitude control actuation and to evaluate its performance through simulation. The Lunar Impactor mission serves as the primary case study, and the results offer valuable insight into the design of the propulsion system while validating the functionality of the GC algorithm. These methods are extended in a second case study focusing on exploration of a near-earth asteroid.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Aeronautics and Astronautics.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2014

Author dc:creator

• Whitlock, Caleb W. (Caleb Wade)

Advisor dc:contributor.advisor

• Paulo Lozano and Leena Singh.

• Aeronautics and Astronautics.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/90807

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/90807