Choice and Development of Methods and Instruments
to Detect the Location of a Loss of Pressurization of a Module on ISS
(Bar)
Principal Investigator(s):
Saprykin О.А., Ph. D. in Technical Science, TsNIImash;
Shubralova E.V., Chief Specialist, TsNIImash
 Bar-1
 Bar-2
Expeditions: 16, 17, 18, 19/20, 21/22, 23/24, 25/26, 27/28, 29/30, 31/32, 33/34, ongoing
Research Area Technology Development and Demonstration, Life Support Systems and Habitation
The Bar space experiment has been conducted on the ISS Russian Segment since 2008 up to now. The
experiment is designed for support of the ISS safety as regards development of means and methods for
detection of leak locations. One of the causes of leakage can be micro-destruction of the ISS pressure
hull.
Bar-1
The goal of the Bar-1 investigation is the experimental verification of the performance and ergonomic
properties of the Bar scientific equipment set as well as the methods of leak locations in full-scale
conditions using the database of the background conditions.
The set of the Bar scientific equipment is designed to detect leak locations in the ISS RS modules,
investigate the inner environment, identify and control of potentially hazardous zones of
microdestruction growth in ISS RS module pressure hull.
Cosmonaut Roman Romanenko with the Bar
scientific equipment
Bar-2
The goal of the Bar-2 investigation is the formation of the database of the background conditions based
on the results of monitoring the physical environment parameters and the pressure hull surface
microconditions in potentially hazardous zones of leak. The Bar scientific equipment is used for this
purpose.
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Earth Benefits
The set of the Bar scientific equipment can be used in the civic aviation and shipbuilding for technical
diagnostics to detect the ship hull microdestruction, for control of corrosion growth on structural
elements, for assessment of conformity to permissible acoustic level.
Space Benefits
The goal of the Bar experiment is designed to provide the ISS RS safety.
The set of the Bar scientific equipment can be used as prototype of the normal system of means for
detecting leak locations inside the ISS RS modules and in combination with the mapped MAPVD
database as a system for control of the ISS pressure hull condition.
Results
During this experiment the following results have been received:
1. The performance and ergonomic properties of the Bar scientific equipment set have been verified.
2. The procedure of detection of leak places in the potentially hazardous zones with the Bar scientific
equipment set has been developed. The identification of the noise source has been done.
3. All the potentially hazardous zones defined by the Bar experiment program have been examined. The
procedure of examination of 56 potentially hazardous zones has been developed for efficiency of
detection of leak places in these areas.
Cosmonaut Oleg Novitskiy is working with equipment
«УТ2-03», (Expedition 34)
Cosmonaut Evgeniy Tarelkin is working with equipment
«АУ-1», (Expedition 34)
4. The ISS pressure hull zones of potential micro-destruction growth have been identified. The Bar
program list of the potentially hazardous zones has been updated with new discovered areas of
potential leak which may be caused by micro-destruction.
Cosmonaut Oleg Kononenko is
working with infrared Kelvin-Video
thermometer («Кельвин-видео»)
Cosmonaut
Gennady
Padalka
is
demonstrating thermal hygrometer and
thermal anemometer TTM-2 («ТТМ-2»)
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5. A database of the background physical environment parameters in potentially hazardous zones of
leak and micro-destruction growth has been formed.
Since Expedition-22 microconditions of the ISS pressure hull surface have been registered. A lot of
images of the surface microconditions in the given zones have been received.
Russian cosmonauts are registering the ISS pressure hull surface micro states with pyroendoscope «ПИРЭН-В»
6. The MAPVD database and the reference CORROSION database have been developed. The images of
behind-panel area conditions received with the Nicon camera and the images of the ISS pressure hull
surface microconditions in these areas received with the pyro-endoscope «Пирэн-В» form the basis of
these databases.
The MAPVD database is mapped. It is constantly updated and replenished due to inspecting new areas
and controlling the old ones. It enables the following:
-
-
Make a visual assessment of the current pressure hull state;
Analyze the condition dynamics and the scale of the surface destruction using simultaneously
registered data of chemical/microbiological analysis of samples taken from the surfaces and
using the images of microconditions of ISS pressure hull surface;
Prepare data for the data sheet of microbiological and corrosive conditions of the ISS pressure
hull.
MAPVD database
The reference CORROSION database contains images of surfaces with corrosion damage. It is structured
according to corrosion types received for both laboratory samples and samples taken from the ISS
module pressure hull surfaces during the BAR experiment. The images have been received with the
pyro-endoscope «Пирэн-В».
The reference CORROSION database is designed for training cosmonauts to visually discover the
pressure hull surface areas which contain signs of microorganism expansion.
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Images of laboratory sample surfaces with corrosion damage
Images of surfaces with corrosion damage of samples taken during the BAR experiment
Publications
N.A.Anfimov,V.V.Borisov,V.I Lukjaschenko, E.V. Shubralova, E.V.Scherbakov, N.D.Novikova,
E.A.Deshevaya «Perspectives of Bar Telemetric Means Utilization for Leakage Detection and Monitoring
of the ISS Construction Conditions» CD, IAC-04-T.3.08, 55th Astronautical Congress, October 4-8, 2004,
Vancouver, Canada, CD
Shubralova E.V., Makolkin E.., Deshyovaya E.A., Novikiva N.D., Polikarpov N.A., Karimova S.A., Taraeva
T.I. «Ultrasonic vibrations influence on microdistruction process», 2d International Scientific Technical
Conference "Biodamages and Biocorrosion in Construction", Saransk, 2006, materials, p.98-101
Borisov V.V., Lukiaschenko V.I., Makolkin E.V., Shubralova E.V., Shabelnikov V.G., Deshevaya E.A.,
Novikova N.D., Krasnov N.K., « Prospects of Applying the Remote Monitoring Devices for Detecting the
Depressurization Locations at the International Space Station and for Checking its Structure»,
Kosmonavtika i Raketostroenie (Cosmonautics and Rocket-Building), 2007 №4 (49), p. 174 – 182
Borisov V.V., Deshevaya E.A., Kononenko O.D., Shubralova E.V., Novikova N.D. «Development test of
method of leakage spots detection on-board ISS», Kosmonavtika i Raketostroenie (Cosmonautics and
Rocket-Building), 2009, №4, С.144-152.
Е.А. Deshevaya, N.D. Novikova, N.A. Polikarpov, V.V. Borisov, Е.V. Shubralova, A.A. Burlakova, O.D.
Kononenko, , L.O. Neznamova, «Results analysis of space experiments "Bar" and "Expert" conducted onboard ISS Russian segment. Perspectives of "Bar" equipment kit application for detection of potentially
dangerous areas for ISS pressure body microdistruction processes extention», 6th International
Aerospace Congress, 2010, CD-ROM.
Deshevaya E., Borisov V., Kononenko O., Shubralova E. V - «Verification of the method for revealing of
potentially dangerous zones of possible development of micro- destruction of the PS ISS pressurized
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structure ( based on the results of the 17-ISS mission)» - 17th IAA Humans in Space Symposium,
Moscow, Russia, June 7-11, 2009, P.32.
Deshevaya Е.А., Е.V. Shubralova, N.D. Novikova, V.V. Borisov, O.D. Kononenko, N.A. Polikarpov «Testing
and evaluation of a method for locating potentially hazardous sites of eventual microdestruction and
detecting marks of ISS RS hull leakage» -J. Acta Astronautica, 2010 г.
Deshevaya E.A., Shubralova E.V., Novikova N.D., Polikarpov N.A., «Results of intravehicular environment
influence on pressure body state studies conducted in space experiments "Bar" and "Expert" on-board
ISS in 2008-2011», Space Forum 2011 Dedicated on 50th Anniversary of Yu.A.Gagarin Flight, Moscow,
October 18-21, 2011.
Makov Yu.N., Bychkov V.B., Kononenko O.D., Shubralova E.V., « Low-Frequency Background Ultrasonic
Problematics Applied to Measurement Necessity Study of Low-Frequency Background Ultrasonic
Influence on Cosmonauts during Long-Term Presence on Space Vehicles», 35th Academic Readings on
Cosmonautics, Moscow, 2011 (edited by A.K. Medvedeva): Russian Academy of Science, Roscosmos,
2011, p. 577-579.
Deshevaya E.A., Shubralova E.V., Borisov V.V., Kononenko O.D., Novikova N.D., Polikarpov N.A., Kotov
O.V., «Main Outcomes of Space Experiments "Bar" and "Expert" Implementation On-Board ISS», 35th
Academic Readings on Cosmonautics, Moscow, January 2011, p.577.
5 Patents.
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