Colombo, C. and Sanchez, J.P. and Vasile, M. and Radice, G. (2006) A comparative assessment of different deviation strategies for dangerous NEO. In: 57th International Astronautical Congress, 2006-10-02 - 2006-10-06, Valencia, Spain.
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Abstract
In this paper a number of deviation strategies for dangerous Near Earth Objects (NEO) have been compared. For each strategy (i.e. Solar Collector, Nuclear Blast, Kinetic Impactor, Low-thrust Propulsion, Mass Driver) a multi criteria optimisation method has been used to reconstruct the set of Pareto optimal solutions minimising the mass of the spacecraft and the warning time, and maximising the deviation. Then, a dominance criterion has been defined and used to compare all the Pareto sets. The achievable deviation at the MOID, either for a low-thrust or for an impulsive variation of the orbit of the NEO, has been computed through a set of analytical formulas. The variation of the orbit of the NEO has been estimated through a deviation action model that takes into account the wet mass of the spacecraft at the Earth. Finally the technology readiness level of each strategy has been used to compute a more realistic value for the required warning time.
| Item type: | Conference or Workshop Item (Paper) |
|---|---|
| ID code: | 18844 |
| Keywords: | dangerous near earth objects, solar collector, nuclear blast, kinetic impactor, low thrust propulsion, mass driver, pareto optimal solutions, Mechanical engineering and machinery, Motor vehicles. Aeronautics. Astronautics |
| Subjects: | Technology > Mechanical engineering and machinery Technology > Motor vehicles. Aeronautics. Astronautics |
| Department: | Faculty of Engineering > Mechanical and Aerospace Engineering |
| Related URLs: | |
| Depositing user: | Ms Katrina May |
| Date Deposited: | 13 May 2010 10:57 |
| Last modified: | 05 Oct 2012 20:49 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/18844 |
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