1. Department of Mechanical Engineering, Yokohama National University, Yokohama 240-8501, Japan
2. Department of Mechanical Engineering, Faculty of Science and Technology, Tokyo University of Science, Noda 278-8510, Japan
3. Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, Tsukuba 305-8505, Japan
4. Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, Ohio 44106, USA