Presentation | 2008-02-28 Verification of design method by trial model for an ultra-lightweight large deployable antenna reflector composed of a tendon reinforced support structure Satoshi HARADA, Kiyoshi KOBAYASHI, Kohei OHATA, Hiroyuki OHMINE, Takahiko NODA, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | NTT has been investigating an ultra-lightweight and large onboard antenna reflector, which is 20m in diameter and less than 100kg for use in the next generation broadband mobile satellite communication system. The key technologies for the antenna are a tendon reinforced support structure and a cable network structure that forms reflector surface. The support structure gives tensile force to the cable network to form designed parabolic shape. The support structure is so designed to bear up the reactive force from the cable network by applying tendon cable to avoid compression buckling with ultra light weight framework. Even with the tendon reinforcement under the tensile force, it is inevitable the large deformation of the ultra lightweight structure that degrades accuracy of reflector form, we designed the cable network insensitive to the support displacement to keep accuracy by arranging the cable stiffness precisely. A 1/5 scale model was fabricated and evaluated and the design method of the proposed structure is validated. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Satellite Communication / Onboard Antenna / Deployable Antenna / Cable Structure |
Paper # | SAT2007-61 |
Date of Issue |
Conference Information | |
Committee | SAT |
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Conference Date | 2008/2/21(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Satellite Telecommunications (SAT) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Verification of design method by trial model for an ultra-lightweight large deployable antenna reflector composed of a tendon reinforced support structure |
Sub Title (in English) | |
Keyword(1) | Satellite Communication |
Keyword(2) | Onboard Antenna |
Keyword(3) | Deployable Antenna |
Keyword(4) | Cable Structure |
1st Author's Name | Satoshi HARADA |
1st Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation() |
2nd Author's Name | Kiyoshi KOBAYASHI |
2nd Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation |
3rd Author's Name | Kohei OHATA |
3rd Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation |
4th Author's Name | Hiroyuki OHMINE |
4th Author's Affiliation | Mitsubishi Electric Corporation |
5th Author's Name | Takahiko NODA |
5th Author's Affiliation | Mitsubishi Electric Corporation |
Date | 2008-02-28 |
Paper # | SAT2007-61 |
Volume (vol) | vol.107 |
Number (no) | 497 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |