Choosing a program for controlling the deployment of an orbital tether system with deployment speed limitations


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Abstract

The problem of delivering payload in the form of a descent capsule using an orbital tether system is discussed in the paper. The dynamic law of controlling the deployment of an orbital tether system in the form of time dependence of the tether tension force is considered. It is shown that if a previously obtained optimal (relay) program of controlling the tether tension force is implemented the speed of tether deployment can reach high values. To reduce the speed of tether deployment a program of controlling the deployment of an orbital tether system, with prescribed limitations on tether deployment speed is obtained. Numerical simulation of orbital tether system deployment is carried out for the program of controlling the tether tension force with limitations on tether deployment speed. It is established that introducing too tight limitations on the speed of tether deployment does not make it possible to deliver the payload – a descent capsule - to the Earth surface. The dispersion of the points of landing of the capsule on the Earth surface caused by introducing limitations on tether deployment speed is analyzed

About the authors

S. A. Ishkov

Samara State Aerospace University

Author for correspondence.
Email: ishkov@ssau.ru

Doctor of Science (Engineering), Professor
Professor of the Department of Space Engineering

Russian Federation

Xu Xiaoye

Samara State Aerospace University

Email: ishkov@ssau.ru

Postgraduate student of the Department of Space Engineering

Russian Federation

G. A. Filippov

Samara State Aerospace University

Email: grigory_ssau@mail.ru

Postgraduate student of the Department of Space Engineering

Russian Federation

References

  1. Beleckiy V.V., Levin Ye.M. Dinamika kosmicheskikh trosovykh system [Dynamics of space tether systems]. Moscow: Nauka Publ., 1990. 329 p.
  2. Ishkov S.A., Naumov S.A. Control over orbital tether system unfolding. Vestnik of the Samara State Aerospace University. 2006. No. 1 (9). P. 77-85. (In Russ.)
  3. Ishkov S.A., Sheynikov I.V. Orbital tether system aimed on small capsules deorbiting parameters definition. Izvestiya Samarskogo nauchnogo tsentra RAN. 2009. V. 11, no. 5. P. 208-215. (In Russ.)

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