Advanced Space System Concepts and Technologies - download pdf or read online

By I. Bekey

ISBN-10: 1884989128

ISBN-13: 9781884989124

The booklet provides an ingenious view of what house may good develop into within the subsequent a number of many years if new applied sciences are built and impressive new cutting edge functions are undertaken. It discusses the subsequent ideas: a destiny atmosphere for area actions very various from the important stipulations of the previous and current; a dozen serious applied sciences with the possibility of making orders-of-magnitude rate reductions in spacecraft and release motor vehicle weight and price and orders-of-magnitude raises of their functionality; and a great number of house functions that use those applied sciences to handle either verified in addition to unconventional missions and capabilities that experience innovative capability.

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Case 3, E2 < E < E3 : This is the case that concerns us the most; when the energy is just above E2 . The particle can move between the 38 2. Motion near the Collinear Equilibrium Points vicinity of m1 and m2 and the exterior realm via a neck around L2 . • Case 4, E3 < E < − 32 = E4 = E5 : In this case the energy is above E3 but below that of E4 and E5 , which is always − 32 . The particle can pass directly from the vicinity of m1 to the exterior realm via a neck around L3 . • Case 5, − 32 < E : If the energy is above E4 = E5 = − 32 , the forbidden realm disappears.

In a more detailed study, and for verification that one can really believe the PCR3BP model, one need to take into account Jupiter’s eccentricity, the effect of three-dimensionality of the motion, and, for instance, the perturbation from Saturn. For the design of the spacecraft trajectory for the Genesis Discovery Mission, knowledge of heteroclinic behavior provided the necessary insight in searching for the desired solution. The Genesis trajectory is an example of a trajectory which takes into account the gravity field of multiple bodies, in this case the Earth, moon, and sun, which at times have comparable and competing effects on the spacecraft’s motion.

Notice that the zero-surface of the integral El corresponds to the energy surface which passes through the libration point. 4) on the surface El = ε > 0 which corresponds to the case where the Hill’s region contains a neck about the libration point. Supplement: Moser’s Theorem and Local Integrals near the Collinear Equilibrium Points Suppose we have a time-independent, analytic Hamiltonian system of differential equations with two degrees of freedom. Suppose these equations have a non-degenerate equilibrium point with one pair of real and one pair of imaginary eigenvalues, ±λ and ±iν.

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Advanced Space System Concepts and Technologies by I. Bekey


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