Identification of the Sources of Dynamic Loads on ISS (Identifikatsia (Identification)) - 05.13.15

Overview | Description | Applications | Operations | Results | Publications | Imagery

ISS Science for Everyone

Science Objectives for Everyone
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Science Results for Everyone
The station rocks – and wobbles. Dynamic operations such as docking and extravehicular activity place varying loads on the space station. This investigation used an onboard accelerometer to compile data on the forces, external load, and accelerations that different activities cause. The data made it possible to determine characteristics for various configurations of the station and to develop algorithms to identify sources of disturbances and other loads. This will allow mathematical recreation of situations based on onboard sensors. During dynamic operations, the level of loading on the structures of modules did not exceed design values.

The following content was provided by Anatoli Ivanovich Likhoded, Ph.D., and is maintained in a database by the ISS Program Science Office.
Experiment Details

OpNom:

Principal Investigator(s)
Anatoli Ivanovich Likhoded, Ph.D., Central Research Institute of Machine Building (TSNIIMASH), Russia

Co-Investigator(s)/Collaborator(s)
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Developer(s)
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Sponsoring Space Agency
Russian Federal Space Agency (Roscosmos)

Sponsoring Organization
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Research Benefits
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ISS Expedition Duration
November 2000 - September 2013

Expeditions Assigned
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19/20,21/22,23/24,25/26,27/28,29/30,31/32,33/34,35/36

Previous ISS Missions
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Experiment Description

Research Overview
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Description
Investigation of dynamic loads onto the ISS RS structure when different dynamic operations are performed at the ISS, namely: docking, reboost, execution of physical exercises by operators, extravehicular activity. Determination of micro-acceleration conditions in areas of technological experiments.

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Applications

Space Applications
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Earth Applications
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Operations

Operational Requirements
Linear optical accelerometers, Low acceleration meters, Onboard measurement telemetry system, Sensors of angular rates and positioning of solar arrays and high-gain antenna.

Operational Protocols
Measurement of accelerations and micro-accelerations on ISS RS structural elements under different external effects. Investigation of micro-gravity conditions in the Service Module and FGB.

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Results/More Information

More accurate definition of parameters of dynamic models of ISS different configurations to improve the accuracy of the structural elements loading analysis, as well as development of methods to define sources of disturbances influencing the microgravity conditions.

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Results Publications

    Anisimov AV, Likhoded AI.  Computational reconstruction of actual docking force loads on the structure of the International Space Station based on processing readings from onboard accelerometers. Kosmonavtika i Raketostroenie (Cosmonautics and Rocket Engineering). 2007; 49(4): 115-119.

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Ground Based Results Publications

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ISS Patents

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Related Publications

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Related Websites
Energia - Science Research on the ISS Russian Segment

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Imagery