Application of preview information to pointing control of truss structure using artificial thermal expansion on orbit

Yusuke Funakoshi, Kosei Ishimura, Yoshiro Ogi, Takashi Iwasa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pointing performance of the truss structure on orbit which is used for large space telescope is discussed. To achieve advanced science missions, large and precise support structures such as truss structures are needed. However, the preciseness of the structure might be lost due to various disturbances on orbit. Therefore, to realize ultra large and precise support structures, active shape control of the structures is needed. To control the shape, we use artificial thermal expansion caused by heaters instead for mechanical actuators. Control systems without mechanism have high reliability, which is very attractive to use on orbit. However, there are some constraints in the usage of heaters. To improve the control performance under such constraints, we apply "Model based Predictive Control (MPC)" as feedforward control method with preview information. In this paper, we mainly show the effectiveness of MPC compared PI control, which is one of the typical feedback control methods. We constructed structural mathematical model and thermal mathematical model in order to show performance of control system. It is confirmed that total error is decreased by MPC compared with the case of PI control through numerical simulations.

Original languageEnglish
Title of host publicationDevelopment and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation
PublisherAmerican Society of Mechanical Engineers
Volume1
ISBN (Print)9780791856031
DOIs
Publication statusPublished - 2013 Jan 1
Externally publishedYes
EventASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2013 - Snowbird, UT, United States
Duration: 2013 Sep 162013 Sep 18

Other

OtherASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2013
CountryUnited States
CitySnowbird, UT
Period13/9/1613/9/18

Fingerprint

Thermal expansion
Orbits
Mechanical actuators
Mathematical models
Control systems
Space telescopes
Feedforward control
Feedback control
Computer simulation

ASJC Scopus subject areas

  • Artificial Intelligence
  • Civil and Structural Engineering

Cite this

Funakoshi, Y., Ishimura, K., Ogi, Y., & Iwasa, T. (2013). Application of preview information to pointing control of truss structure using artificial thermal expansion on orbit. In Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation (Vol. 1). [SMASIS2013-3039] American Society of Mechanical Engineers. https://doi.org/10.1115/SMASIS2013-3039

Application of preview information to pointing control of truss structure using artificial thermal expansion on orbit. / Funakoshi, Yusuke; Ishimura, Kosei; Ogi, Yoshiro; Iwasa, Takashi.

Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation. Vol. 1 American Society of Mechanical Engineers, 2013. SMASIS2013-3039.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Funakoshi, Y, Ishimura, K, Ogi, Y & Iwasa, T 2013, Application of preview information to pointing control of truss structure using artificial thermal expansion on orbit. in Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation. vol. 1, SMASIS2013-3039, American Society of Mechanical Engineers, ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2013, Snowbird, UT, United States, 13/9/16. https://doi.org/10.1115/SMASIS2013-3039
Funakoshi Y, Ishimura K, Ogi Y, Iwasa T. Application of preview information to pointing control of truss structure using artificial thermal expansion on orbit. In Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation. Vol. 1. American Society of Mechanical Engineers. 2013. SMASIS2013-3039 https://doi.org/10.1115/SMASIS2013-3039
Funakoshi, Yusuke ; Ishimura, Kosei ; Ogi, Yoshiro ; Iwasa, Takashi. / Application of preview information to pointing control of truss structure using artificial thermal expansion on orbit. Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation. Vol. 1 American Society of Mechanical Engineers, 2013.
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