DOI QR코드

DOI QR Code

Using In Situ Resources and 3D Printing for Space Exploration Habitat Construction

행성탐사를 위한 거주지 건설 연구 : 현지자원 활용과 3D 프린팅 기술을 중심으로

  • 이진영 (한양대학교 건설환경공학과) ;
  • 이태식 (한양대학교 건설환경공학과)
  • Received : 2019.11.20
  • Accepted : 2020.02.24
  • Published : 2020.06.01

Abstract

The third phase of NASA's 3D-Printed Habitat Challenge (part of a NASA's Centennial Challenges Program competition) required entrants to build a one-third-scale space exploration habitat (10 ㎡) using 3D-printing technology. This study addresses a proposed habitat (diameter: 3 m, height: 2 m) in accordance with the competition rules. The study focus is to find the most appropriate binder when KOHLS-1 was mixed for extruding and stacking as 3D printing feedstock using pellets, and to build a prototype structure as required by the competition. Unlike previous studies, this study was based around the binders and construction method, not around axis transfer velocity, flow rate, and heater temperature.

행성 유인 탐사를 위한 NASA Centennial Challenge Program(이하 CCP)의 "3D-Printed Habitat Challenge : Phase 3"에서 건축물 출력이 지난 5월에 진행되었으며 2팀이 수상하였다. 본 연구진은 NASA CCP에서 제시한 조건에 맞추어 1/3 크기의 거주지(지름 3 m, 높이 2 m) 제작하였다. 본 연구의 목적은 달 복제토와 다양한 결합재를 배합하여 펠릿 형태의 3D 프린팅 건설 재료를 제작 및 이용하여 출력함에 따라 건설용 3D 프린터 결합재의 적합성을 선정하고 NASA 경연대회에서 제시 한 구조물을 제작하는 것이다. 노즐의 이동속도, 사출 속도 및 공급온도를 고정하고 재료 차원에서 최적화를 위해 연구를 진행하였으며 결합재의 비율 증가에 따른 재료의 한계점을 해결하기 위하여 공법의 변화를 주어 대회에서 요구하였던 조건에 맞추어 거주지 건설을 위한 연구를 진행 중이다.

Keywords

References

  1. Ko, S. W., Jang, B. C., Koo, J. K. and Lee, T. S. (2009). "Study for korea lunar simulant prototype development." Proceeding of the KSCE Korea Society of Civil Engineers, 10, 3598-3601 (in Korean).
  2. Lee, J. H., Ann, K. Y., Lee, T. S. and Mitikie, B. B. (2018). "Bottom-up heating method for producing polyethylene lunar concrete in lunar environment." Advances in Space Research, Vol. 62, No. 1, pp. 164-173. https://doi.org/10.1016/j.asr.2018.03.039
  3. Lee, J. Y. and Lee, T. S. (2019). "Optimization of material extruding performance to build a 3D printed habitat on the Moon and Mars." Journal of The Korean Society of Civil Engineers, KSCE, 39(2), 345-349 (in Korean). https://doi.org/10.12652/KSCE.2019.39.2.0345
  4. NASA and Bradley (2016). 3D-printed habitat challenge phase 2, Structural member competition rules V.5, NASA & Bradley University, Available at: https://www.bradley.edu/sites/challenge-phase2/documents/Competition_Rules.pdf (Accessed: January 28, 2020).
  5. NASA and Bradley (2018). 3D-printed habitat challenge phase 3, On-Site Habitat Competition Rules V.3, NASA & Bradley University, Available at : https://www.bradley.edu/sites/challenge/assets/documents/3DPH_Phase_3_Rules-v3.pdf (Accessed: April 20, 2020)
  6. Porter, M. (2017). Six teams earn honors, prize money in second construction level of NASA challenge to 3-D print a habitat, NASA, Marshall Space Flight Center, Available at: https://www.nasa.gov/directorates/spacetech/centennial_challenges/3DPHab/6-teams-earn-prize-money-in-second-level-of-challenge (Accessed: November 20, 2019).
  7. Porter, M. (2019). Teams 3D print planetary habitats, Awarded $700K in NASA Challenge, Marshall Space Flight Center, Available at: https://www.nasa.gov/directorates/spacetech/centennial_challenges/3DPHab/19-017.html (Accessed: January 12, 2020).
  8. Prater, T., Roman, M., Kim, T. and Mueller, R. (2017). NASA centennial challenge: 3D-printed habitat, NASA.
  9. Rogers, T. (2015). Everything you need to know about polyethylene (PE), Creative Mechanisms, Available at: https://www.creativemechanisms.com/blog/polyethylene-pe-for-prototypes-3d-printing-and-cnc (Accessed: January 12, 2020).
  10. SpecialChem (2019). Shrinkage values (%) of various plastics, Omnexus, Available at: https://omnexus.specialchem.com/polymer-properties/properties/shrinkage#PE-PL (Accessed: January 12, 2020).
  11. Standard, A. S. T. M. (2008). ASTM C109-standard test method for compressive strength of hydraulic cement mortars, ASTM International, West Conshohocken, PA.
  12. The Constructor (2019). Compressive strength of concrete - Cube test, procedure, results, Available at: https://theconstructor.org/concrete/compressive-strength-concrete-cube-test/1561/ (Accessed: November 20, 2019).