Demonstration of a novel smart structural system for pointing control of trusses

Takeshi Shimada, Kosei Ishimura, Taro Kawano

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

Abstract

We designed and developed a novel smart structural system for pointing control of large-scale support structures, such as trusses. The system consists of a pointing control mechanism, an internal displacement-sensor, and a controller. Remarkable points of our system are (1) artificial thermal expansion of truss members is utilized as linear actuators, (2) elastic hinges are applied instead of boll joints, and (3) the internal displacement-sensor which does not need external jigs and has high measuring accuracy is applied. In this paper, we conducted the feasibility study and the experimental demonstration. As a result of the feasibility study, the proposed pointing control mechanism can produce several hundred arcseconds of the rotational displacements within three minutes, therefore it has potential for using in practical operations. As a result of the experimental demonstration, we confirmed that the hysteresis of the pointing control mechanism can be kept sufficiently small due to the absence of the sliding parts, and has high control accuracy and followability (the error RMS value for a circle of the radius of 500 μm is 3.6 %).

Original languageEnglish
Title of host publicationModeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791850497
DOIs
Publication statusPublished - 2016 Jan 1
Externally publishedYes
EventASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2016 - Stowe, United States
Duration: 2016 Sep 282016 Sep 30

Publication series

NameASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2016
Volume2

Other

OtherASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2016
CountryUnited States
CityStowe
Period16/9/2816/9/30

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Control and Systems Engineering
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Demonstration of a novel smart structural system for pointing control of trusses'. Together they form a unique fingerprint.

  • Cite this

    Shimada, T., Ishimura, K., & Kawano, T. (2016). Demonstration of a novel smart structural system for pointing control of trusses. In Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting [V002T03A001] (ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2016; Vol. 2). American Society of Mechanical Engineers. https://doi.org/10.1115/SMASIS2016-9016