Comparative analysis of architectures for the control loop of launch vehicles during atmospheric flight |
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| Authors: | Philippe Saunois |
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| Institution: | 1. Waseda Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169–8555, Japan;2. JEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305–8505, Japan;3. School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169–8555, Japan;4. Department of Physics, University of Florence, Via Sansone, 1 - 50019 Sesto, Fiorentino, Italy;5. INFN Sezione di Florence, Via Sansone, 1 - 50019 Sesto, Fiorentino, Italy;6. Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA;7. Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, MD 20771, USA;8. Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277–8582, Japan;9. Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, Siena 53100, Italy;10. INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127, Pisa, Italy;11. Department of Physics, Washington University, One Brookings Drive, St. Louis, MO 63130-4899, USA;12. Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, LA 70803, USA;13. Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019 Sesto, Fiorentino, Italy;14. Department of Physics and Astronomy, University of Padova, Via Marzolo,8, Padova 35131, Italy;15. INFN Sezione di Padova, Via Marzolo, 8, Padova 35131, Italy;p. University of Rome “Tor Vergata”, Via della Ricerca Scientifica 1, Rome 00133, Italy;q. INFN Sezione di Rome “Tor Vergata”, Via della Ricerca Scientifica 1, Rome 00133, Italy;r. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252–5210, Japan;s. CRESST and Astroparticle Physics Laboratory NASA/GSFC, Greenbelt, MD 20771, USA;t. St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, Kanagawa 216–8511, Japan;u. Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169–8555, Japan;v. Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan;w. Faculty of Science and Technology, Graduate School of Science and Technology, Hirosaki University, 3, Bunkyo, Hirosaki, Aomori 036–8561, Japan;x. Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwakecho, Sakyo, Kyoto 606–8502, Japan;y. National Institute of Polar Research, 10-3, Midori-cho, Tachikawa, Tokyo 190–8518, Japan;z. Faculty of Engineering, Division of Intelligent Systems Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama 240–8501, Japan;1. Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390–8621, Japan;2. Hakubi Center, Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto, 606–8501, Japan;3. Department of Astronomy, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku,Kyoto, 606–8502, Japan;4. College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252–5258, Japan;5. University of Pisa, Polo Fibonacci, Largo B. Pontecorvo, Pisa 3 - 56127, Italy;6. Department of Electrical and Electronic Systems Engineering, National Institute of Technology, Ibaraki College, 866 Nakane, Hitachinaka, Ibaraki 312–8508 Japan;7. Saitama University, Shimo-Okubo 255, Sakura, Saitama, 338–8570, Japan;8. Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA;9. Department of Physical Sciences, College of Science and Engineering, Ritsumeikan University, Shiga 525–8577, Japan;10. International Center for Science and Engineering Programs, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169–8555, Japan;11. RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;12. Heliospheric Physics Laboratory, NASA/GSFC, Greenbelt, MD 20771, USA;13. Department of Physics and Astronomy, University of Denver, Physics Building, Room 211, 2112 East Wesley Ave., Denver, CO 80208-6900, USA;14. ASI Science Data Center (ASDC), Via del Politecnico snc, Rome 00133, Italy;15. College of Industrial Technology, Nihon University, 1-2-1 Izumi, Narashino, Chiba 275–8575, Japan;P. Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, 277–8583, Japan;Q. Division of Mathematics and Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558–8585, Japan;R. National Institutes for Quantum and Radiation Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263–8555, JAPAN;S. Nagoya University, Furo, Chikusa, Nagoya 464–8601, Japan;T. College of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310–8512, Japan;U. Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma, Saitama 337–8570, Japan |
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| Abstract: | Most of architectures used for the control loop of launch vehicles are based on attitude angle, attitude rate and lateral acceleration feedbacks. Related controllers are usually chosen to be stable. The main purpose of this paper is to give a comparison between a few architectures, pointing out the benefits of an unstable attitude angle feedback design for the control of an aerodynamically unstable launch vehicle. Such a design indeed is appropriate to reduce significantly the aerodynamic load during atmospheric flight. This is an issue of practical interest as it has become a design driver for mechanical sizing of modern launchers.The paper recalls the various goals the control loop is trying to reach all along the atmospheric flight (stability, set point tracking, aerodynamic load minimization …). For each phase of the flight, priorities are discussed. The paper then focuses on two critical phases of the atmospheric flight, i.e. high dynamic pressure period and atmospheric stages separation. |
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