[updated: November 2018]

This research started in FY2018 and will complete in FY2020 under the support by Grant-in-Aid for Scientific Research (A) of MEXT (KAKENHI KIBAN-A). The following 8 researchers are the project member;

PI  Y. Miyazaki
Co-Investigator  M. C. Natori (JAXA), N. Kishimoto (Setsunan University), K. Ishimura (Waseda University), D. Joudoi (JAXA)
Cooperated researcher  N. Katsumata (Muroran Intsitute of Technology), Y. Satou (JAXA), S. Arita (Shizuoka University)

This research project aims for the resolution of the following four subjects. Our laboratory is responsible for the subject 2 and 3, and discussing the senario (subject 4) with above researchers.

[Subject 1]  To show the concept and form of the structure that enables to enlarge the gossamer structure considering the ease of prediction of behaviour, fabrication, testing, integration, and on-orbit operation.
[Subject 2] To show the theory of the mechanics that predicts the behaviour of the structure such as deployment, connection, and separation so precisely that it can be applied to the design, development, and operation of real gossamer space structure systems.
[Subject 3] To propose the procedure of the construction of the structures such as solar power sail, starshade, and SSPS in space by applying the results of Subject 1 and 2.
[Subject 4] To show the senario to realize the large gossamer structure considerd in Subject 3.

Progress [October, 2018]

The progress of the research in our laboratory is shown bellow.

October 24-26, 2018 Presentation of three papers in JSASS 62nd Space Sciences and Technology Conference. Shitara (M1) won the best presentation award in the student session.  [Detail...]
October 1-5, 2018 Presentation of a paper in IAC2018  [Detail...]
September 20-22, 2018 Project meeting #2 at Hokkaido Touya Fhoenix Club  [Detail...]
June 29, 2018 Project meeting #1 at Nihon University College of Science and Technology  [Detail...]
June 21-22, 2018 Visit of Sakase-Adtech Co., Ltd in Sakai city, Fukui  [Detail...]

Brief introduction of project

This research aims for the establishment of the construction theory of large gossamer space structure system that is easy to make the prediction of the behaviour in space, to fabricate, test, and integration on the ground. For this purpose, we will propose novel concepts and methods on

  1. Structural concept and form to enable the increasing in size
  2. the method to deployment, connection, and separation in space
  3. the prediction method and its accuracy of the behaviour of structure system in space
for large space structures of several ten meters or one hundred meters consisting of extremely flexible structural member (gossamer structure) such as membranes and cables, which has not been realized yet. We will conduct the formulation of theory, numerical analysis, and experimental analysis. We will show a practical senario to realize such a system based on the theory and the technology with the considerion of the social situation, which proves that our theory is not "armchair plan" but applicable to the real spacecraft. We will show the procedure of the space demonstration of our theory along the proposed senario. The above four subjects will be solved to achieve this plan. Then, we will
  1. contribute to propose future novel space sicence/utilization mission,
  2. contribute to the development of the research on flexible multi-body dynamics, geometric mechanics, and
  3. mathematical sciences such as ORIGAMI-sicence.

College of Science and Technology, Nihon University
Department of Aerospace Engineering
Space Structure Systems Laboratory
College of Science and Technology, Nihon University
7-24-1 Narashinodai, Funabashi, Chiba 274-8501, Japan
e-mail: asel (at) forth.aero.cst.nihon-u.ac.jp