Experimental and theoretical study of the spatial distribution of irradiance created by the infrared irradiator IET-29 under conditions of heat-vacuum testing of space equipment products

Аuthors

Yashchenko B. Y.

Lavochkin Research and Production Association, NPO Lavochkin, 24, Leningradskay str., Khimki, Moscow region, 141400, Russia

Abstract

The work is devoted to experimental and theoretical studies of the distribution of surface power density of thermal radiation from the thermal radiation module of IET-29 type used for simulation of external thermal impact during thermal vacuum testing of space technology products. According to the results of experimental studies, the peculiarities in the operation of the IET-29 type radiator related to the change of the position of the radiating element in the reflector during heating to operating temperatures have been revealed. By means of numerical modeling, using the methodology based on the finite element model of the IET-29 thermal radiator, the conditions under which the peculiarities noted in the course of experimental studies are reproduced have been determined. Experimental studies have confirmed the existence of the theoretically predicted significant dependence of irradiance created by the IET-29 module on the position of the radiator in its reflector.

Keywords:

thermal vacuum testing, thermal flux sensor, infrared radiation module, thermal radiation, vacuum chamber

References

1. Finchenko V.S., Kotlyarov E.Yu., Ivankov A.A. Systems of thermal modes of automatic interplanetary stations [Systems for ensuring thermal modes of automatic interplanetary stations]. Ed by V.V. Efanov, V.S. Finchenko. Khimki. NPO Lavochkina, 2018, 400 p. (In Russ.).
2. Andreichuk O.B., Malakhov N.N. Teplovye ispytaniya kosmicheskikh apparatov [Thermal tests of spacecraft]. Moscow: Mashinostroenie, 1982, 143 p. (In Russ.).
3. Zaletaev S.V., Ruminsky N.A., Basov A.A., Klochkova M.A., Fedoruk G.D. Application of the generalized two-body radiant interaction characteristic for estimation of the thermal vacuum chamber temperature effect on a space vehicle during thermal vacuum testing. Thermal Processes in Engineering, 2020, vol. 12, no. 6, pp. 282–288. (In Russ.). DOI: 10.34759/tpt-2020-12-6-282-288.
4. Ulyanov V.A., Sizyakov N.P., Polyakhov A.D. The final element thermal model of infra-red course IET-29 and its verification by thermal vacuum tests results // All-Russian Scientific-Technical Journal «Polyot» («Flight»), 2022, no. 4, pp. 3–21. (In Russ.).
5. Yashchenko B.Yu., Shabarchin A.F., Ushakova A.A. Razvitie programmnogo kompleksa i metodiki rascheta raspredeleniya teplovogo izlucheniya ot slozhnogo izluchatelya [Development of a software package and methodology for calculating the distribution of thermal radiation from a complex radiator]. XLI Akademicheskie chteniya po kosmonavtike, posvyashchennye pamyati akademika S.P. Koroleva i drugikh vydayushchikhsya otechestvennykh uchenykh – pionerov osvoeniya kosmicheskogo prostranstva. Moscow: Bauman Moscow State Technical University, 2017, p. 430. (In Russ.).
6. Ulyanov V.A., Sizyakov N.P., Polyakhov A.D., Yurev I.A. Construction and Researches of Radiating Model of Infrared Sourse IET-29 with Reference to Conditions Thermal Vacuum Tests of Products of Space Technics. All-Russian Scientific-Technical Journal “Polyot” (“Flight”), 2023, no. 1–2, pp. 81–94. (In Russ.).
7. Ulyanov V.A., Sizyakov N.P., Polyakhov A.D., Boyarkin V.V., Yurev I.A., Yakushev A.O. Verification of the thermal model of the IET-29 radiator. Bulletin of Scientific Conferences, 2022, no. 6-1 (82), pp. 81–94. (In Russ.).
8. Dobritsa D.B., Ushakova A.A., Shabarchin A.F., Yashchenko B.Yu. Modeling external thermal influence of infrared radiation sources during tests of rocket and space equipment in VK-600/300. Vestnik of Samara University. Aero-space and Mechanical Engineering, 2017, vol. 16, no. 3, pp. 27–38. (In Russ.). DOI: 10.18 287/2541-7533-2017-16-3-27-38.
9. Yevdokimov I.Y., Nikolaenko V.S., Filippov G.S., Yashchenko B.Yu. Calculation of spatial distribution of energy of a complex radiator. Vestnik of the Samara State Aerospace University, 2013, no. 1 (39), pp. 214–221. (In Russ.).
10. Yashchenko B.Yu. Certificate of state registration of computer program No. 2011610989. Calculation of thermal radiation distribution. Application: No. 2010617495; 30.11.2010; Registered in the Register of computer programs: 27.01.2011.