[updated: April 2019]
CESS (Cutting-Edge Space Structure Research Group) is a ，student design group that has been established since April 2017. The objective of the group is not only the design of a space system, but the development of conceptual model of the system, the demonstration of the system, and the proposal of the system. CESS has joined >the AeroSpace Lab since April 2019. The motto of CESS is "Go for Real Space System". The following four projects are active in CESS;
- Utilization of novel deployable structure : We are considering to apply novel deployable structure sucha as self-deployable structure (that can deploy without any powered actuator such as motors) ans origami-like structure to the astronomical observation, space solar power generation, large aperture antenna, space debris catcher and so on, and fabricate conceptual models and conduct experiments to verify the concept.
- Hands-on program of development and operation of real satellite : We learn the design of the CubeSat "NEXUS" launched in 2019, and make a prototype of a CubeSat that has the same function of NEXUS. We experience the operation of NEXUS at the operation room (room#345). Through these experiences, we design the CubeSat or micro-satellites to demonstrate a novel space structure in space.
- Space experiment triggered by Satellite Design Contest : Starting from the participation of the Satellite Design Contest held by Japan Society for Mechanical Engineers, we will finnaly try to conduct a space experiment of the concept proposed in the contest.
- Development and utilization of simulation model of satellite "i-CanSat-Lite" : Prof. Mohammed Khalil Ibrahim (Cairo University) designed a simulation model of a satellite named "i-CanSat-Lite" during his stay in our laboratory from 2016 to 2017. We modify the design of i-CanSat-Lite and make it. We practice the operation of space mission using i-CanSat-Lite before participating the development project of real space structure.
You can see the detail of the projects in CESS at the website:
[Expample of our activities #1: Advanced space mission using self-deployable membrane truss]
A bent steel measure will recover its straight shape if we release the hold. There are various structural booms that have such self-extensibility, and we can store a large truss consists of such booms into small volume by winding the booms, and it deploys automatically if we release the hold. The "self-deployable membrane truss" (SDMT) is sucha a truss with a thin membrane attached. We aim for applying the SDMT to the large communication antennas and large splar array, and for realizing the direct-imaging mission of exoplanets by space telescope by applying the SDMT to the StarShade system.
We published the movie of the experiment on youtube.
[Example ofour activities #2: Operation of CubeSat "NEXUS"]
We should understand the systemof real satellite if we conduct the space mission. So we developed a CubeSat named NEXUS. NEXUS was launched in January 17, 2019 by JAXA's Epsilon rocket #4. We have been operating NEXUS since then.
The participants of CESS will take lectures by the NEXUS team member, read the specification and design documents of NEXUS, design and development of a prototype of a satellite that has the same function as NEXUS, and operate NEXUS. Through such experiences, they will understand the development procedure of real satellite and be able to design their own space mission.
You can see the detail of NEXUS from the follwing links: