Colombo, C. and Sanchez, J.P. and Vasile, Massimiliano and Radice, Gianmarco (2006) A comparative assessment of different deviation strategies for dangerous NEO. In: 57th International Astronautical Congress, 2006-10-02 - 2006-10-06.
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)|
|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|
|Depositing user:||Ms Katrina May|
|Date Deposited:||13 May 2010 09:57|
|Last modified:||05 May 2016 03:22|