• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Vibration Pumping System for Utilization of Lunar Regolith Particles

Research Project

Project/Area Number 21K20399
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
Research InstitutionKyoto University

Principal Investigator

Adachi Masato  京都大学, 工学研究科, 助教 (90908386)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords月探査 / 月土壌 / 粉体ハンドリング / 振動搬送 / 月レゴリス / 月面探査 / 粉体力学
Outline of Research at the Start

長期月面探査の実現には,物資の搬送リスク・コストの観点から,現地資源である月土壌粒子の活用が不可欠であり,その成否の鍵を握るのが過酷な宇宙環境下でも不具合なく稼働する粉体ハンドリング技術の確立である.本研究では,機械的駆動部や液体・気体が不要であり,制御が簡単で小型化が可能である等と宇宙環境との相性が良い,垂直振動粉体ポンプシステムに着目し,その月土壌粒子に対する搬送特性を調査する.

Outline of Final Research Achievements

This research serves to investigate a transport performance of a granular vibration pumping system against irregular-shaped lunar regolith particles. A new experimental setup of the system allowed us to tune up the vibration parameters respectively and to reveal effects of the parameters on the transport performance of the regolith particles with different diameters. Transport experiments using spherical glass beads within the same diameter ranges were also conducted, and the results show the difference of dynamic transport properties between spherical and irregular-shaped particles. The lunar regolith transport is relatively difficult due to the low flowability. Thus, we developed the new granular vibration pumping system employing double oscillating pipes, which improved the transport performance against the regolith. Moreover, we performed a numerical calculation to investigate effects of the lower gravitational acceleration of the Moon on the transport performance.

Academic Significance and Societal Importance of the Research Achievements

先行研究では球形ガラス粒子の搬送について調査が行われてきたのに対し,本研究では非球形粒子の搬送特性を実験的に明らかにするだけでなく,その搬送性能を向上させる手法・条件についても見出すことが出来た.また,これまでの研究では数100μm程度の粒子の搬送しか確認できていなかったが,本研究では1mm以上の粒子についても搬送可能であることを実証し,装置の応用範囲拡大という意味でも重要な知見が得られた.さらに,月面の低重力環境下ではその搬送性能が向上するというシミュレーションの結果も得た.
本研究の成果は,将来の宇宙探査ミッションでの実装のみらならず,地上の様々な粉体関連産業への応用等についても期待される.

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 Other

All Int'l Joint Research (1 results) Presentation (6 results) (of which Int'l Joint Research: 3 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] ドイツ航空宇宙センター(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Presentation] Granular Vibration Pumping System for Transporting Lunar Regolith2023

    • Author(s)
      Kenta Shirode, Naoya Hatano, Tomoko Hirayama, Hiroshi Kanamori, Kohsuke Tanaka, Masato Adachi
    • Organizer
      34th International Symposium on Space Technology and Science
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 月レゴリスを資源活用するための垂直振動粉体ポンプシステム2023

    • Author(s)
      城出健太, 安達真聡
    • Organizer
      第16回宇宙ユニットシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 垂直振動粉体ポンプシステムによる粉体の粒径が上昇挙動に及ぼす影響2023

    • Author(s)
      城出健太, 波多野直也, 安達眞聡
    • Organizer
      2023年度 粉体工学会春期研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Lunar Dust: Its Impact on Hardware and Mitigation Technologies2022

    • Author(s)
      Dorota Budzyn, Eoin Tuohy, Natan Garrivier, Timon Schild, Aidan Cowley, Reuben Cruise, Masato Adachi, Hossein Zare-Behtash, Andrea Cammarano
    • Organizer
      46th Aerospace Mechanisms Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamical Properties of Granular Vibration Pumping for ISRU2022

    • Author(s)
      Masato Adachi, Patricia Sophie Schneider, Matthias Sperl
    • Organizer
      33rd International Symposium on Space Technology and Science
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 垂直振動粉体ポンプシステムによる粉体の上昇挙動特性2022

    • Author(s)
      安達真聡
    • Organizer
      2022年度 粉体工学会春期研究発表会
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 粉粒体搬送装置2023

    • Inventor(s)
      安達眞聡,城出健太
    • Industrial Property Rights Holder
      国立大学法人京都大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2023-055473
    • Filing Date
      2023
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2021-10-22   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi