Structural analysis of thermally induced stick-slip on deployable mast

Shunnosuke Shimizu, Kosei Ishimura, Victor Parque, Tomoyuki Miyashita

研究成果: Conference contribution

抜粋

Large space structures tend to be flexible because only a few dimensions become large while material properties become constant. For flexible structures, even minute disturbances affect the movement of the structure. For the sake of precise observation in space, large structures with stable dynamic properties are required to support sensors. The stability of the structures is affected by the thermal expansion caused by solar radiation. The purpose of this research is to verify the compatibility between numerical analyses and experimental results for a mast structure with thermally induced stick-slip phenomenon at friction sliding part. Radiation heating experiments for the mast structure, and numerical analyses using finite element method with several friction models at contact surface among parts in the mast were discussed. Three friction models are: (a) coulomb model, (b) simplified coulomb model, and (c) rising static friction model. Comparing each friction model, modeling on thermally induced stick-slip occurring in the space structure is studied. The coulomb model and the rising static friction model showed thermally induced stick-slip behavior. However, the simplified coulomb model did not show such behaviors. Finally, several methods were proposed to decrease the disturbance due to thermally induced stick-slip.

元の言語English
ホスト出版物のタイトルAIAA Scitech 2019 Forum
出版者American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷物)9781624105784
DOI
出版物ステータスPublished - 2019 1 1
イベントAIAA Scitech Forum, 2019 - San Diego, United States
継続期間: 2019 1 72019 1 11

出版物シリーズ

名前AIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
United States
San Diego
期間19/1/719/1/11

ASJC Scopus subject areas

  • Aerospace Engineering

フィンガープリント Structural analysis of thermally induced stick-slip on deployable mast' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Shimizu, S., Ishimura, K., Parque, V., & Miyashita, T. (2019). Structural analysis of thermally induced stick-slip on deployable mast. : AIAA Scitech 2019 Forum (AIAA Scitech 2019 Forum). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2019-1025