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Multi-criteria comparison among several mitigation strategies for dangerous near Earth objects

Sanchez, J.P. and Colombo, C. and Vasile, Massimiliano and Radice, Gianmarco (2009) Multi-criteria comparison among several mitigation strategies for dangerous near Earth objects. Journal of Guidance, Control and Dynamics, 32 (1). pp. 121-142. ISSN 0731-5090

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Abstract

In this paper a comparative assessment of the effectiveness of different deviation methods for Near Earth Objects is presented. Specifically, solar collector, nuclear interceptor, kinetic impactor, low-thrust propulsion, mass driver and gravity tug are modelled and compared. For each method, a mathematical model is developed in order to compute the achievable deviation. A multi-criteria optmization method is then used to construct the set of Pareto optimal solutions, minimizing the mass of the spacecraft at departure from the Earth and the warning time, i.e., the time from launch to the foreseen impact of the asteroid with the Earth, while at the same time maximizing the deviation. A dominance criterion is defined and used to compare all the Pareto sets for all the various mitigation strategies. Finally a Technology Readiness Level factor is associated to each strategy in order to estimate the required technological development.

Item type: Article
ID code: 15828
Notes: COPYRIGHT OWNED BY ALL AUTHORS
Keywords: solar collector, nuclear interceptor, kinetic impact, low-thrust propulsion, mass driver, gravity tug, near Earth objects, mitigation strategies, Mechanical engineering and machinery, Motor vehicles. Aeronautics. Astronautics, Aerospace Engineering, Control and Systems Engineering, Computational Mechanics
Subjects: Technology > Mechanical engineering and machinery
Technology > Motor vehicles. Aeronautics. Astronautics
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Technology and Innovation Centre > Advanced Engineering and Manufacturing
Depositing user: Ms Katrina May
Date Deposited: 10 Feb 2010 15:32
Last modified: 23 Jul 2015 17:46
URI: http://strathprints.strath.ac.uk/id/eprint/15828

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