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Dvornychenko, V. N.

Publications and source records attributed to Dvornychenko, V. N..

The generalized Tsiolkovsky equation

The performance of a rocket, say a chemical rocket, can be greatly improved by dynamically transferring energy from one part of the propellant to another. Although with present technology the achievable degree of energy concentration is low, payload increases on the order of 20 percent are theoretically possible. With unlimited energy redistribution increases of a factor of two are possible.

Dvornychenko, V. N.↗

Optimum aim point biasing in case of a planetary quarantine constraint.

It is assumed that the probability of impact for each maneuver is the same, and that the aspects of orbit determination and execution errors of each maneuver affect only the targeting. An approximation of the equal probability of impact contour is derived. It is assumed that the quarantine constraint is satisfied if the aim point is not inside the impact contour. A method is devised to find on each contour the optimum aim point which minimizes the so-called bias velocity which is required to bring back the spacecraft from the biased aim point to the originally desired aim point. The method is an improvement over the approach presented by Light (1965), and Craven and Wolfson (1967).

Gedeon, G. S.↗