Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Functional Verification of Pin-puller-type Holding and Release Mechanism Based on Nylon Wire Cutting Release Method for CubeSat Applications

나일론선 절단 방식에 기반한 Pin-puller형 큐브위성용 태양전지판 구속분리장치의 기능검증

  • Go, Ji-Seong (Department of Smart Vehicle System Engineering, Chosun University) ;
  • Son, Min-Young (Department of Smart Vehicle System Engineering, Chosun University) ;
  • Oh, Hyun-Ung (Department of Smart Vehicle System Engineering, Chosun University)
  • 고지성 (조선대학교 스마트이동체융합시스템공학부) ;
  • 손민영 (조선대학교 스마트이동체융합시스템공학부) ;
  • 오현웅 (조선대학교 스마트이동체융합시스템공학부)
  • Received : 2021.03.02
  • Accepted : 2021.08.16
  • Published : 2021.10.31
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Abstract

In general, a non-explosive nylon wire cutting-based holding and release mechanism has been used to store and deploy deployable solar panels of CubeSat. However, with this method, accessing the solar panel's access port for charging the cube satellite's battery and electrical inspection and testing of the PCB and payloads while the solar panel is in storage is difficult. Additionally, the mechanism must have a reliable release function in an in-orbit environment, and reusability for stow and deploy of the solar panel, which is a hassle for the operator and difficult to maintain a consistent nylon wire fastening process. In this study, we proposed a pin-puller-based solar panel holding and release mechanism that can easily deploy a solar panel without cutting nylon wires by separating constraining pins. The proposed mechanism's release function and performance were verified through a solar panel deployment test and a maximum separation load measurement test. Through this, we also verified the design feasibility and effectiveness of the pin-puller-based separation device.

일반적으로 큐브위성용 전개형 태양전지판을 수납 및 전개시키기 위해 사용되는 구속분리장치는 비폭발식 나일론선 절단방식이 적용된다. 그러나 상기 방식은 태양전지판 수납 상태에서 큐브위성의 배터리 충전, PCB 및 탑재체의 전기적 점검 및 시험 등을 위한 접근 포트 연결 시 분리장치의 구속해제 및 재채결 작업이 반복적으로 요구된다. 따라서, 기존의 구속분리장치는 위성체 내부 접근을 위해서는 작업자의 번거로움 및 일관된 나일론선 체결작업 공정 유지의 어려움이 존재한다. 본 연구에서는 나일론 선 절단 없이 구속 핀 분리만으로 자유롭게 태양전지판 전개 및 수납이 가능한 Pin-puller형 태양전지판 구속분리장치를 제안하였으며, 기능 및 성능검증을 위한 분리장치의 전개시험 및 최대 분리하중 측정 시험을 통해 분리장치 설계의 유효성을 입증하였다.

Keywords

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