JPH01280087A - Tension wire for space equipment - Google Patents
Tension wire for space equipmentInfo
- Publication number
- JPH01280087A JPH01280087A JP10320788A JP10320788A JPH01280087A JP H01280087 A JPH01280087 A JP H01280087A JP 10320788 A JP10320788 A JP 10320788A JP 10320788 A JP10320788 A JP 10320788A JP H01280087 A JPH01280087 A JP H01280087A
- Authority
- JP
- Japan
- Prior art keywords
- space equipment
- carbon fiber
- tension wire
- polyacrylonitrile
- precursor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 11
- 239000004917 carbon fiber Substances 0.000 claims abstract description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 6
- 239000002243 precursor Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 3
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Ropes Or Cables (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は展開型アンテナ等の宇宙機器用テンションワイ
ヤーに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tension wire for space equipment such as a deployable antenna.
従来、宇宙機器用テンションワイヤーとしては、ステン
レス鋼製ワイヤーが一般的であった。また軽量化、熱的
寸法安定性の観点から１通常の炭素繊維製ワイヤー、ア
ラミド繊維製ワイヤー、モリブデン等の低熱膨張金属製
ワイヤーが使用されていた。Conventionally, stainless steel wires have been commonly used as tension wires for space equipment. In addition, from the viewpoint of weight reduction and thermal dimensional stability, ordinary carbon fiber wires, aramid fiber wires, and low thermal expansion metal wires such as molybdenum have been used.
従来のステンレス鋼製ワイヤーは、素材のステンレス鋼
の比重が約８．０、線膨張係数が約１６×１０−’ ／
’Ｃと大きいため、宇宙機器用テンションワイヤーと
しては１重量が大きく、熱的寸法安定性が良くない等の
問題点があった。また、通常の炭素繊維は結節強さおよ
び引掛強さが小さいため、アラミド繊維等の有機繊維は
宇宙環境において紫外線、各種の放射線および原子状酸
素によって特性が劣化するため、モリブデン等の低熱膨
張金属は比重が大きいため、それぞれ宇宙機器用テンシ
ョンワイヤーとしては最適ではなかった。Conventional stainless steel wire has a specific gravity of stainless steel of about 8.0 and a coefficient of linear expansion of about 16 x 10-'/
Because of its large C, it weighs too much as a tension wire for space equipment and has problems such as poor thermal dimensional stability. In addition, ordinary carbon fibers have low knot strength and hooking strength, and organic fibers such as aramid fibers have properties deteriorated by ultraviolet rays, various types of radiation, and atomic oxygen in the space environment, so low thermal expansion metals such as molybdenum Because of their high specific gravity, they were not optimal as tension wires for space equipment.
本発明は、上記のような問題点を解消するためになされ
たもので、重量が小さく、熱的寸法安定性に優れ、宇宙
環境においても特性の劣化しにくい宇宙機器用テンショ
ンワイヤーを得ることを目的とする。The present invention was made in order to solve the above-mentioned problems, and aims to provide a tension wire for space equipment that is small in weight, has excellent thermal dimensional stability, and whose characteristics do not easily deteriorate even in the space environment. purpose.
本発明に係る宇宙機器用テンションワイヤーは、ポリア
クリロニトリルを前駆体とし、引張強さが５００ ｋｇ
ｆ ／ ｍｍ”以上、引張弾性率が２５，０００ｋｇｆ
／ ｍｍ”以上、結節強さが１ 、０００フィラメント
当たり０．３ｋｇｆ以上、引掛強さが１ 、０００フィ
ラメント当たり２ｋｇｆ以上の炭素繊維フィラメントヤ
ーンを用いてワイヤーとしたものである。The tension wire for space equipment according to the present invention uses polyacrylonitrile as a precursor and has a tensile strength of 500 kg.
f/mm” or more, tensile modulus is 25,000kgf
/mm'' or more, a knot strength of 0.3 kgf or more per 1,000 filaments, and a hooking strength of 2 kgf or more per 1,000 filaments.
本発明の宇宙機器用テンションワイヤーは、上記炭素繊
維フィラメントヤーンを２本以上撚り合せ、または上記
炭素繊維フィラメントヤーンを１本以上束ねて、その周
囲を適当な繊維でカバーリングし、宇宙機器用テンショ
ンワイヤーとして用いられる。The tension wire for space equipment of the present invention is made by twisting two or more of the above carbon fiber filament yarns, or by bundling one or more of the above carbon fiber filament yarns and covering the periphery with suitable fibers. Used as wire.
本発明の宇宙機器用テンションワイヤーは、炭素繊維に
より構成されているため、重量が小さく、線膨張係数が
小さく、宇宙環境においても、特性の劣化しにくい優れ
た特性を有する。Since the tension wire for space equipment of the present invention is made of carbon fiber, it has a small weight, a small coefficient of linear expansion, and has excellent characteristics that do not easily deteriorate even in a space environment.
ポリアクリロニトリルを前駆体とし、第１表の特性値を
有する炭素繊維フィラメントヤーンのトレカＸ９００
（東しく株）製、商標）を数本撚り合せて宇宙機器用テ
ンションワイヤーとした。このワイヤーは比重約１．８
と軽量で、線膨張係数はｌＸ１０−’／’Ｃ以下で、ス
テンレス鋼製ワイヤーに比べて著しく小さく、また、宇
宙環境においても特性は劣化しにくい。Trading card X900 is a carbon fiber filament yarn using polyacrylonitrile as a precursor and having the characteristic values shown in Table 1.
(manufactured by Toshiku Co., Ltd., trademark) were twisted together to make tension wire for space equipment. This wire has a specific gravity of approximately 1.8
It is lightweight and has a coefficient of linear expansion of less than lX10-'/'C, which is significantly smaller than stainless steel wire, and its properties do not easily deteriorate even in the space environment.
第１表
なお、上記実施例では、炭素繊維フィラメントヤーンを
数本撚り合せて宇宙機器用テンションワイヤーとしたが
、炭素繊維フィラメントヤーンを１本以上束ねて、その
周囲を適当な繊維でカバーリングして宇宙機器用テンシ
ョンワイヤーとしても上記実施例と同様の効果を奏する
。Table 1 Note that in the above example, several carbon fiber filament yarns were twisted together to make a tension wire for space equipment. Therefore, the same effect as the above embodiment can be obtained also as a tension wire for space equipment.
以上のように１本発明によれば、ポリアクリロニトリル
を前駆体とし、引張強さが５００ｋｇｆ／ｍｍ２以上、
引張弾性率が２５，０００ ｋｇｆ／ｍｍ”以上、結節
強さがｔ 、 ｏｏｏフィラメント当たり０．３ ｋｇ
ｆ以上、引掛強さがｉ 、 ｏｏｏフィラメント当たり
２ ｋｇｆ以上の炭素繊維フィラメントヤーンを用いた
ので、重量が小さく、熱的寸法安定性に優れ、宇宙環境
においても劣化しにくい宇宙機器用テンションワイヤー
が得られる。As described above, according to the present invention, polyacrylonitrile is used as a precursor, the tensile strength is 500 kgf/mm2 or more,
Tensile modulus is 25,000 kgf/mm” or more, knot strength is t, 0.3 kg per ooo filament
Since we use carbon fiber filament yarn with a hooking strength of more than f and a hooking strength of i and ooo of more than 2 kgf per filament, we have created a tension wire for space equipment that is small in weight, has excellent thermal dimensional stability, and is resistant to deterioration even in the space environment. can get.
Claims (1)
５００ｋｇｆ／ｍｍ＾２以上、引張弾性率が２５，００
０ｋｇｆ／ｍｍ＾２以上、結節強さが１，０００フィラ
メント当たり０．３ｋｇｆ以上、引掛強さが１，０００
フィラメント当たり２ｋｇｆ以上の炭素繊維フィラメン
トヤーンを用いたことを特徴とする宇宙機器用テンショ
ンワイヤー。(1) Polyacrylonitrile is used as a precursor, tensile strength is 500 kgf/mm^2 or more, and tensile modulus is 25.00
0kgf/mm^2 or more, knot strength is 0.3kgf or more per 1,000 filaments, hooking strength is 1,000
A tension wire for space equipment characterized by using carbon fiber filament yarn of 2 kgf or more per filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10320788A JPH01280087A (en) | 1988-04-26 | 1988-04-26 | Tension wire for space equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10320788A JPH01280087A (en) | 1988-04-26 | 1988-04-26 | Tension wire for space equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01280087A true JPH01280087A (en) | 1989-11-10 |
Family
ID=14348068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10320788A Pending JPH01280087A (en) | 1988-04-26 | 1988-04-26 | Tension wire for space equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01280087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0955237A3 (en) * | 1998-05-05 | 1999-11-24 | Eurocopter Deutschland GmbH | Cable connection for solar panel deployment on satellites |
-
1988
- 1988-04-26 JP JP10320788A patent/JPH01280087A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0955237A3 (en) * | 1998-05-05 | 1999-11-24 | Eurocopter Deutschland GmbH | Cable connection for solar panel deployment on satellites |
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