Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

A comparative assessment of different deviation strategies for dangerous NEO

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, Valencia, Spain.

[img] PDF (strathprints018844.pdf)
Download (991Kb)

    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 Jun 2014 21:12
    URI: http://strathprints.strath.ac.uk/id/eprint/18844

    Actions (login required)

    View Item

    Fulltext Downloads: