UDK 620.17
THE PROBLEM OF INCREASING THE SENSITIVITY OF LOCAL CONTROL METHODS FOR TIGHTNESS PRODUCTS OF ROCKET AND SPACE TECHNOLOGY
A. A. Kishkin [1], I. P. Kolchanov [2], A. V. Delkov [1], A. A. Hodenkov [1]
[1] Siberian State Aerospace University named after academician M. F. Reshetnev 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660014, Russian Federation Е-mail: spsp99@mail.ru [2] JSC "Information satellite system" named after academician M. F. Reshetnev 52, Lenin str., Zheleznogorsk, Krasnoyarsk region, 662971, Russian Federation
Tightness is one of the most important factors of safety, efficiency and persistence in the rocket and space technology. Mass spectrometer leak detection method is mostly used in the spacecraft production. This article describes the possibility of increasing the sensitivity of the method of leak test of rocket and space technology using helium mass spectrometer leak detectors. Theoretical formulation of the problem on the spatial positioning of the source of leaks from the values of the projections of the concentration gradient in a test environment in a specially prepared area of the object is explored. Concentration field of leak will be concentric semicircles when there are no any incoming flows in testing area. If concentration field is known, it is possible to solve the problem of localization of leaks with the gradient of this field. This article has covered mathematical model of the concentration field and localization leaks algorithm. Problems and prospects of the proposed method are evaluated.
tightness test, leak detection, leak localization, diffusion.
References
- Afanasev V. A. [et al.] Eksperimental'naya otrabotka kosmicheskikh letatel'nykh apparatov (Experimental verification of spacecraft). Edited by Kholodkov N. V. Moscow, MAI publ., 1994. 412 p.
- Gardymov G. P., Parfenov B. A., Pchelincev A. V. Tekhnologiya raketostroeniya (Rocket technology).
St. Petersburg, Spetsial'naya literatura publ., 1997. 320 p. - Gurvich A. K., Ermolov I. N., Sazhin S. G. Nerazrushayushchiy kontrol'. Kn. 1. Obshhie voprosy (Non-destructive testing. Book 1. Common questions). Edited by V.V. Suhorukov. Moscow, Higher School Publ., 1992. 416 p.
- Moiseev V. A., Tarasov V. A., Kolmykov V. A., Filimonov A. S. Tekhnologiya proizvodstva zhidkostnykh raketnykh dvigateley (Technology of production of liquid rocket engines). Moscow, MSTU Publ., 2008. 380 p.
- Belokur I. P., Kovalenko V. A. Defektoskopiya materialov i izdeliy (Flaw detection of materials and products). Kiev, Technology Publ., 1989. 192 p.
- GOST 28517-90. Kontrol' nerazrushayushchiy. Mass-spektrometricheskiy metod techeiskaniya. Obshchie trebovaniya (Nondestructive testing. Mass spectrometry leak detection. General requirements). Moscow, Standartinform, 2005.
- Testoedov N. A. [et al.] Tekhnologiya proizvodstva kosmicheskikh apparatov (Production technology of spacecraft.). Krasnoyarsk, SibSAU Publ., 2009. 352 p.
- Sheshin E. P. Vakuumnye tehnologii (Vacuum technology). Dolgoprudnyy, Intellekt Publ., 2009. 504 p.
- Tarasevich R. M. Metody i sredstva proverki germetichnosti uzlov, otsekov i sistem letatel'nyh apparatov (Methods and tools for leak testing nodes, compartments and aircraft systems). Moscow, MAI, 1974. 145 p.
- The Vacuum Technology Book Volume II. Germany, publ. Pfeiffer Vacuum GmbH, 2013. : Available at: http://www.norm.gr/documents/Vacuum-Technology-Book-II-Part-2.pdf (accessed 5 December 2013).
- Romanovskij R. K. Lektsii po uravneniyam matematicheskoy fiziki. Uravneniya kolebaniy i diffuzii (Lectures on Differential Equations. Fluctuations and the diffusion equation). Omsk, OmGTU Publ., 2004. 102 p.
- Dmitriev E. A. Yavleniya perenosa massy v primerakh i zadachakh (Mass transfer phenomena in the examples and problems). Moscow, Publ. MUCTR of D.I. Mendeleev, 2005. 120 p.
- Martinson L. K., Malov Ju. I. Differencial'nye uravnenija matematicheskoj fiziki (Differential equations of mathematical physics). Moscow, MGTU Publ., 1996. 368 p.
- Farlou S. Uravneniya s chastnymi proizvodnymi dlya nauchnykh rabotnikov i inzhenerov (Partial Differential Equations for Scientists and Engineers). Moscow, Mir Publ., 1985. 384 p.
- Pribory dlja nerazrushajushhego kontrolja materialov i izdelij. Spravochnik. (Instruments for nondestructive testing of materials and products. Handbook), edited by V. V. Kljuev. Moscow, Mashinostroenie Publ., 1986.
Kishkin Alexander Anatolevich – Doctor of Engineering Science, Professor, head of the Department of Refrigeration, air conditioning and cryogenic techniques, Siberian State Aerospace University named after academician M.F. Reshetnev . E-mail: spsp99@mail.ru
Kolchanov Igor Petrovich – the chief engineer for adjustment and testing of JSC “Information Satellite System” named after academician M. F. Reshetnev”, postgraduate student of Siberian State Aerospace University named after academician M. F. Reshetnev
Delcov Alexander Viktorovich – assistant of the Department of Refrigeration, air conditioning and cryogenic techniques, Siberian State Aerospace University named after academician M.F. Reshetnev. E-mail: delkov-mx01@mail.ru
Hodenkov Aleksej Aleksandrovich – assistant of the Department of Refrigeration, air conditioning and cryogenic techniques, Siberian State Aerospace University named after academician M. F. Reshetnev. E-mail: zed666-88@mail.ru
