UDK 629.78.051:537.221 Doi: 10.31772/2587-6066-2018-19-2-325–331
INVESTIGATION OF CHARGE-DISCHARGE PROCESSES IN THE SPACECRAFT DETACHABLE CONNECTOR
R. E. Tikhomirov, I. A. Maximov, D. A. Trofimchuk, V. V. Ivanov, S. V. Balashov
JSC “Academician M. F. Reshetnev” Information Satellite Systems”; 52, Lenin Str., Zheleznogorsk, Krasnoyarsk region, 662972, Russian Federation
Modern spacecraft consists of structural materials with different electro-physical characteristics, and it causes the occurrence of charge-discharge processes on the spacecraft during interaction with the magnetospheric plasma. The study of this phenomena arising during the natural spacecraft charging and its influence on the onboard systems func-tioning is of great interest in the field of ensuring the stability of spacecraft under the space factors influence. The paper presents the experimental results of charge-discharge processes occurring in detachable connectors dur-ing in-space exploitation after undocking the separating device and placing the spacecraft onto the orbital slot. For the determination of impact factors characteristics of electrostatic discharge and its potential effect on spacecraft board equipment the charge-discharge processes research methods with account of spacecraft equipment interfaces were de-signed. For modeling of electrostatic discharge in detachable connectors and its effects in technological circuits of spacecraft equipment the imitation loads were applied. These loads include input interface elements of spacecraft power convectors and onboard control complex. The results show that the dielectric material of connector contact field can accumulate a charge to the value limited by the discharge on it. Discharge processes on the dielectric material induce interfering pulses in onboard cable har-ness and can have a significant impact on the work of onboard equipment. The obtained results are useful in spacecraft equipment designing in the sphere of interference immunity.
Keywords: electrostatic discharge, spacecraft charging, plasma, spacecraft detachable connector.
References

1.     Maksimov I. A., Kochura S. G. Issledovaniye vliyaniya faktorov kosmicheskogo prostranstva i tekhnogennykh faktorov na kosmicheskiye apparaty, razrabotka metodov i sredstv zashchity [Research of influence of factors of space and technogenic factors on spacecrafts, development of methods and means of protection]. Krasnoyarsk, SibSAU Publ., 2011, 182 p.

2.     ECSS-E-ST-20-06C, Space engineering, Spacecraft charging, 2008, ESA Standart, 120 p.

3.     Model kosmosa T. 2. Vozdeistvie kosmicheskoi sredy na materialy i oborudovanie kosmicheskikh apparatov [Space model. Vol. 2. Space environment influence on spacecraft materials and equipment]. Ed. M. I. Panashuka, L. S. Novikova. Moscow, CDU Publ., 2007, 1144 p.

4.     Grafodatskiy O. S., Babkin G. V., Belinskiy V. N. et al. Nazemnyye stendovyye ispytaniya kosmicheskikh apparatov na stoykost’ k vozdeystviyu radiatsionnoy elektrizatsii [Ground-based bench tests of space vehicles for resistance to radiation radiation]. Korolev, TSNIIMash, GONTI-1 Publ., 1992, 157 p.

5.     NASA-HDBK-4002A, Mitigating in-space charging effects – a guideline, 2011, NASA, 181 p.

6.     MIL-STD-461, “Requirements for the control of electromagnetic interference characteristics of subsystems and equipment”, 1999, US Department of Defense.

7.     Garret H. B. The geosynchronous plasma environment, AIAA Paper 90-0289, 1999, 16 p.

8.     Tikhomirov R. E., Maximov I. A., Trofimchuk D. A., Ivanov V. V., Balashov S. V. [Investigation of characteristics of electric field arising from electrostatic discharge]. Vestnik SibGAU. Vol. 17, No. 4, P. 1015–1019 (In Russ.).

9.     Tikhomirov R. E., Trofimchuk D. A. et al. [Modeling of radiation electrization of spacecraft construction materials] Trudy Vserossiyskoy konferentsii studencheskikh nauchno-issledovatel’skikh inkubatorov. [Proceedings of the All-Russian conference of student research incubators]. Tomsk, 2014, 180 p.

10.      Trofimchuk D. A., Yermoshkin Y. M., Kochev Y. V. et al. [Electrostatic discharge problem in geostationary spacecraft electrojet propulsion subsystem]. Vestnik SibGAU. 2015, Vol. 16, No. 2, P. 404–410 (In Russ.).

11.      Novikov L. S., Babkin G. V. et al. Kompleksnaya metodologiya opredeleniya parametrov elektrostaticheskoy zaryadki, elektricheskikh poley i proboyev na kosmicheskikh apparatakh v usloviyakh ikh radiatsionnoy elektrizatsii. [Complex methodology of determination of parameters electrostatic charging, electric fields and discharges on space craft in radiation electrization conditions], Moscov, Izd-vo TsNIImash Publ., 1995, 160 p.

12.  Purvis C. K., Garret H. B. et al. Design guidelines for assessing and controlling spacecraft charging effects, NASA-ТЗ-2361, 1984, 44 p.

13.  Maximov I. А., Grafodatsky O. S. et al. [Results of research of spacecraft interference immunity during spacecraft charging impact and protection methods]. Nauchno-tekhnicheskiy otchet NTO 434-3645-89. [Scientific and Technical Report]. Krasnoyarsk, NPO PM Publ., 1989, 210 p.

14.      Mileev V. N., Novikov L. S. [Physico-mathematical model of spacecraft charging on GEO and HEO. Research on geomagnetism]. Issledovaniya po geomagnetizmu, aeronomii i fizike Solntsa. 1989, Iss. 86, P. 64–98 (In Russ.).

Garret H. B., Spitale Guy C. Magnetospheric Plasma Modeling (0-100 keV). Journal of Spacecraft and Rockets. 1985, Vol. 22, No. 3, P. 231–244.


Tikhomirov Roman Evgen’evich – 1st category engineer, JSC “Academician M. F. Reshetnev” Information

Satellite Systems”. Е-mail: tikhroman@iss-reshetnev.com.

Maximov Igor Aleskandrovich – Dr. Sc., head of department, JSC “Academician M. F. Reshetnev” Information

Satellite Systems”. Е-mail: mia@iss-reshetnev.ru.

Trofimchuk Denis Aleskandrovich – head of group, JSC “Academician M. F. Reshetnev” Information Satellite

Systems”. Е-mail: maximov@iss-reshetnev.ru.

Ivanov Vladimir Vasil’evich – Cand. Sc., vice head of department, JSC “Academician M. F. Reshetnev”

Information Satellite Systems”. Е-mail: ivanov@iss-reshetnev.ru.

Balashov Sergey Vladimirovich – head of sector, JSC “Academician M. F. Reshetnev” Information Satellite

Systems”. Е-mail: balashow@iss-reshetnev.ru.


  INVESTIGATION OF CHARGE-DISCHARGE PROCESSES IN THE SPACECRAFT DETACHABLE CONNECTOR