惑星分光観測衛星プロジェクトチーム
  1. Researcher List
  2. Yasuhiro Morita

Yasuhiro Morita

  (森田 泰弘)

Profile Information

Affiliation
Professor, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
Degree
Doctor of Philosophy(The University of Tokyo)
Master of Engineering(The University of Tokyo)
J-GLOBAL ID
200901060615181820
researchmap Member ID
1000144472
External link

Research Interests

 8

Research Areas

 3

Research History

 26
More

Education

 4

Committee Memberships

 12
More

Awards

 3

Papers

 5
  • Hirohito Ohtsuka, Naruhisa Sano, Masaru Nohara, Yasuhiro Morita, Takahiro Ito, Takayuki Yamamoto, Hiroto Habu
    Advances in the Astronautical Sciences, 171 3903-3918, 2020  
    © 2020, Univelt Inc. All rights reserved. ISAS/JAXA has successfully launched the micro-satellite “TRICOM-1R” by the world’s smallest orbit rocket “SS-520 No.5” from Uchinoura Space Center on February 3rd in 2018. ISAS modified the existing sounding rocket SS-520 adding a small 3rd-stage solid-motor and the attitude control system. It flies spinning for the attitude stabilization in the flight. Therefore, we devised the rhumb-line control system with a new scheme. This rhumb-line system has the high-performance functions; the high-preciseness, the high-maneuver rate and the suppression of the unnecessary nutation angle generated at the RCS injection. This paper reports the development of the G&C system and the flight results.
  • Hirohito Ohtsuka, Yasuhiro Morita, Kensaku Tanaka, Takanao Saiki, Takayuki Yamamoto, Hiroyuki Yamaguchi, Yasunobu Segawa, Hitomi Gotoh
    Advances in the Astronautical Sciences, 156 2063-2073, 2016  
    The first Epsilon rocket was launched successfully with a small payload 'HISAKI' on September 14th, 2013 in Japan. Epsilon has a new absorber structure in Payload Attach Fitting to reduce the vibration condition for payload. We designed the robust control logic to satisfy the compatibility of robust stability and response against various disturbances. The 3rd Stage under spinning has a Rhumb-line Control function which reduces the pointing error at separation and ignition of solid motor. We could insert the payload into the orbit precisely by 'LVIC' guidance, suitable for low thrust propulsion in Post Boost Stage. We will present the flight results of the Guidance & Control (G&C) system and dynamics of Epsilon rocket.
  • OHTSUKA Hirohito, TANAKA Kensaku, SAITOH Kohichi, MORITA Yasuhiro, KATOH Yohichi, SAIKI Takanao, YAMAMOTO Takayuki, GOTOH Hitomi, YAMAMOTO Hifumi
    Aeronautical and Space Sciences Japan, 63(5) 148-154, 2015  
  • TOKUDOME Shinichiro, IMOTO Takayuki, MORITA Yasuhiro
    JOURNAL OF THE JAPAN WELDING SOCIETY, 83(3) 215-219, 2014  
  • MORITA Yasuhiro, IMOTO Takayuki, TOKUDOME Shinichiro, OHTSUKA Hirohito
    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, SPACE TECHNOLOGY JAPAN, 10(28) Tg_19-Tg_24, 2012  
    The Epsilon rocket, formerly called Advanced Solid Rocket (ASR) launcher, proceeded to the full development phase in August 2010 and its launch site was officially declared to be the Uchinoura Space Center (USC), the home of Japanese solid propellant rocket. The primary purpose of Epsilon is to provide small satellites with a responsive launch that means a low cost, user-friendly and ultimately efficient launch system. The slogan is "Small, Cheap, Fast and Reliable". This outcome is also a result of the excellent endeavors of those who devoted themselves to the next generation solid propellant rocket. However, this is not the final destination. Now that the development was approved, the most important is what the next step should be beyond Epsilon. This paper deals with the significance of the development of Epsilon launch vehicle and how it contributes to the possible evolution of future space transportation systems.

Misc.

 100
More

Books and Other Publications

 2

Professional Memberships

 12
More

Works

 22
More

Research Projects

 16
More

Industrial Property Rights

 5
To the list screen