JPH0875596A - Stinger for wind tunnel test - Google Patents
Stinger for wind tunnel testInfo
- Publication number
- JPH0875596A JPH0875596A JP21581694A JP21581694A JPH0875596A JP H0875596 A JPH0875596 A JP H0875596A JP 21581694 A JP21581694 A JP 21581694A JP 21581694 A JP21581694 A JP 21581694A JP H0875596 A JPH0875596 A JP H0875596A
- Authority
- JP
- Japan
- Prior art keywords
- wind tunnel
- core material
- sting
- tunnel model
- vibration
- 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.)
- Withdrawn
Links
Landscapes
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、風洞試験に於て、風洞
模型を風洞計測部に設置するために使用するスティン
グ、特に制振機能を有する風洞試験用スティングに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sting used for installing a wind tunnel model in a wind tunnel measuring section in a wind tunnel test, and more particularly to a sting for a wind tunnel test having a vibration damping function.
【0002】[0002]
【従来の技術】航空機の開発試験の中に、実機と相似に
製作された風洞模型を使用し、実機特性を求める風洞模
型がある。通常の風洞試験では、図5に示すように、ス
ティング51の先端部56に天秤52を介して連結され
た風洞模型53に発生する空気力を天秤52により、風
洞模型53に設定されるX軸、Y軸、Z軸各方向の力、
およびこれらの各軸まわりの回転モーメントを計測し、
実機特性を求めるようにしている。また、スティング5
1は、前述の通り風洞模型53を先端部56に連結し、
風洞模型53を風洞計測部に設置するとともに、その後
端の付根部55を連結した風洞装置60を、上下動させ
ることによって、風洞の軸心方向に流れる気流Fに対す
る風洞模型53の迎角αを変更するようにしている。2. Description of the Related Art Among the development tests of aircraft, there is a wind tunnel model that uses a wind tunnel model manufactured in a similar manner to an actual aircraft to obtain the characteristics of the actual aircraft. In the normal wind tunnel test, as shown in FIG. 5, the aerodynamic force generated in the wind tunnel model 53 connected to the tip portion 56 of the sting 51 via the balance 52 is set by the balance 52 in the X-axis model 53. , Y-axis, Z-axis force,
And measuring the rotational moment around each of these axes,
I try to find the actual machine characteristics. Also, Sting 5
1 connects the wind tunnel model 53 to the tip portion 56 as described above,
The wind tunnel model 53 is installed in the wind tunnel measurement unit, and the wind tunnel device 60 connected to the root portion 55 at the rear end is moved up and down, whereby the angle of attack α of the wind tunnel model 53 with respect to the air flow F flowing in the axial direction of the wind tunnel is increased. I am trying to change it.
【0003】図6は、従来使用されている通常の円形ス
ティング51の全体を表わしたものであるが、風洞試験
の目的によっては、図7に示す様な、先端部56と付根
部55の間を平たくした、平板スティング54を使用す
る場合もある。すなわち、スティングには、風洞模型5
3を風洞計測部に設置し、気流Fに対する風洞模型53
の迎角αを変角するほか、風洞模型53の後方の流れ
(後流)を、実機と相似の流れに整流して、後流の乱れ
により風洞模型53のまわりの流れが乱れ、実機特性と
異なる空気力が風洞模型53に発生させることがないよ
うにすることも目的としている。このため、スティング
先端部56後方の形状、大きさは強度上からの要求のほ
かに、後流を整流できる形状、大きさにする必要があ
る。FIG. 6 shows the whole of a conventional circular sting 51 which has been conventionally used. However, depending on the purpose of the wind tunnel test, there is a gap between the tip portion 56 and the root portion 55 as shown in FIG. A flat plate sting 54, which is flat, may be used. That is, the sting is for the wind tunnel model 5
3 is installed in the wind tunnel measurement unit, and the wind tunnel model 53 for the air flow F
In addition to changing the angle of attack α of the wind tunnel model 53, the flow behind the wind tunnel model 53 (the wake) is rectified into a flow similar to the actual machine, and the flow around the wind tunnel model 53 is disturbed by the turbulence of the wake and the characteristics of the actual machine It is also intended to prevent an aerodynamic force different from that from being generated in the wind tunnel model 53. For this reason, the shape and size behind the sting tip portion 56 must be a shape and size that can rectify the wake, in addition to the requirement from the standpoint of strength.
【0004】また、このような、従来のスティング5
1,54は鋼製材料による一体成形で製作されているた
め構造減衰率は1%以下と低く、また、重量の大きいも
のとなっており、その先端部に取付けられる風洞模型の
固有振動数は小さいものとなっている。このため、風洞
模型53を気流Fに対し大きな迎角αに設定し、風洞模
型53が空力的に不安定となり、振動が発生した場合、
スティング51,54を含む支持系に、振動を減衰させ
る力がなく、また、風洞模型53の加振がスティング5
1,54の先端に取り付けられた風洞模型53の固有振
動数に近い振動数で行われるため、風洞模型53の振動
が発散し、風洞試験が不可能となる場合がある。Further, such a conventional sting 5 is used.
Since 1,54 are made by integral molding of steel material, the structural damping factor is as low as 1% or less, and the weight is large, and the natural frequency of the wind tunnel model attached to the tip is It is small. Therefore, when the wind tunnel model 53 is set to a large angle of attack α with respect to the air flow F, and the wind tunnel model 53 becomes aerodynamically unstable and vibration occurs,
The support system including the stings 51 and 54 has no vibration damping force, and the vibration of the wind tunnel model 53 is caused by the sting 5.
Since the vibration is performed at a frequency close to the natural frequency of the wind tunnel model 53 attached to the tips of the wind tunnel models 1, 54, the vibration of the wind tunnel model 53 may diverge and the wind tunnel test may become impossible.
【0005】近年設計される航空機は、要求性能の特殊
性から、必ずしも、安定した形状のものではなく、その
風洞模型は、風洞試験において大きな振動が発生するも
のがある。このような、風洞模型を使って風洞試験を行
う場合、従来の上述したスティングによる支持では、こ
の振動を制する事が出来ない場合が多々発生している。Due to the peculiarity of the required performance, recently designed aircraft are not always stable in shape, and there are some wind tunnel models that generate large vibrations in a wind tunnel test. When performing a wind tunnel test using such a wind tunnel model, it is often the case that the vibration cannot be suppressed by the conventional support by Sting described above.
【0006】また、航空機の超音速時の実機特性を求め
る超音速風洞試験においては、風洞始動時、風洞内に生
じるスターティングロードにより風洞模型53が加振さ
れ、風洞模型53に振動が発生し、風洞試験が不可能と
なることもある。Further, in a supersonic wind tunnel test for obtaining actual aircraft characteristics at supersonic speed, the wind tunnel model 53 is vibrated by the starting load generated in the wind tunnel at the time of starting the wind tunnel, and the wind tunnel model 53 vibrates. The wind tunnel test may not be possible.
【0007】[0007]
【発明が解決しようとする課題】本発明は、上述の従来
装置の不具合を解消し、風洞模型に振動が発生しても、
振動を減衰し、また、風洞模型の振動と共振することが
なく、発生した振動を発散させることのない、風洞試験
用スティングを提供することを課題とする。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the conventional device, and even if vibration occurs in the wind tunnel model,
It is an object of the present invention to provide a wind tunnel test sting that damps vibrations, does not resonate with vibrations of a wind tunnel model, and does not diverge generated vibrations.
【0008】[0008]
【課題を解決するための手段】このため、本発明の風洞
試験用スティングは、次の手段とした。 (1)天秤を固定する先端部、風洞装置と連結する付根
部を後端に設けた鋼製の芯材、芯材との間に間隙を設け
て芯材を被覆し、外周面を先端部に取付けた風洞模型の
後流を整流するようにして、芯材と固着される鋼製の外
皮材、および芯材と外皮材の間に充填され、風洞模型に
発生し、芯材を介して伝達される振動を減衰する樹脂材
を設けた。Therefore, the sting for wind tunnel test of the present invention has the following means. (1) A steel core having a tip portion for fixing the balance and a root portion for connecting to the wind tunnel device at the rear end, and a core material covering with a gap between the core material and the outer peripheral surface of the tip portion. It is filled in between the core material and the steel outer skin material fixed to the core material and the outer skin material so as to rectify the wake of the wind tunnel model attached to the A resin material is provided to damp the transmitted vibration.
【0009】また、他の本発明の風洞試験用スティング
は、次の手段とした。 (2)(1)項の芯材と同様な芯材、および芯材を被覆
し、外周面を先端に取付けた風洞模型の後流を整流する
とともに、風洞模型で発生し、芯材を介して伝達される
振動との共振を回避し、振動を減衰する繊維強化樹脂を
設けた。Another wind tunnel test sting according to the present invention has the following means. (2) A core material similar to the core material in the item (1), and a core material that covers the core material and rectifies the wake of the wind tunnel model with the outer peripheral surface attached to the tip, and is generated in the wind tunnel model and passes through the core material. The fiber-reinforced resin that damps the vibration is provided to avoid resonance with the transmitted vibration.
【0010】[0010]
【作用】本発明の風洞試験用スティングでは、上記
(1)の手段により、 (1)風洞模型の高迎角設定等により、風洞模型に発生
し、芯材先端に入った振動荷重は、芯材と外皮材との間
隙に充填した樹脂を介し、外皮に伝達される。しかし、
この伝達の過程で、樹脂材の制振作用により振動エネル
ギーは、熱エネルギーに変換され、振動の大きさを低減
する制振効果が生じ、振動が発散するようなことはなく
なり、風洞試験に支障を及ぼすことはなくなる。また、
風洞模型の後流は、従来のスティングと同様に、実機と
相似な流れに整流できる。In the sting for wind tunnel test of the present invention, by the means of (1) above, (1) due to the high angle of attack setting of the wind tunnel model, the vibration load generated in the wind tunnel model and entering the tip of the core material is It is transmitted to the outer skin through the resin filled in the gap between the material and the outer skin material. But,
In the process of this transmission, the vibration energy of the resin material is converted into thermal energy, and the vibration damping effect that reduces the magnitude of the vibration is generated, so that the vibration does not diverge and the wind tunnel test is disturbed. Will not be affected. Also,
The wake of the wind tunnel model can be rectified into a flow similar to that of the actual machine, as in the conventional Sting.
【0011】また、他の本発明の風洞試験用スティング
では、上記(2)の手段により、 (2)風洞模型に発生し、芯材先端に入った振動荷重
は、芯材の表面を被覆した繊維強化樹脂の持つ制振作用
により、低減することができる。また、風洞模型の後流
を、実機の後流と相似に整流する従来のスティングと略
同じ形状を、芯材の表面に繊維強化樹脂を被覆すること
によって形成したので、整流効果が得られるほか、重量
が軽減されて、先端に取付けられる風洞模型の固有振動
数を高めることができ、風洞模型に発生する振動の共振
による振動発散を防止できる。In another wind tunnel test sting according to the present invention, (2) the vibration load generated in the wind tunnel model by the means (2) and entering the tip of the core material covers the surface of the core material. It can be reduced due to the damping effect of the fiber reinforced resin. In addition, the wake of the wind tunnel model is formed by coating the surface of the core material with a fiber reinforced resin, which has the same shape as the conventional Sting that rectifies the wake of the actual machine. The weight is reduced, the natural frequency of the wind tunnel model attached to the tip can be increased, and vibration divergence due to resonance of vibration generated in the wind tunnel model can be prevented.
【0012】[0012]
【実施例】以下、本発明の風洞試験用スティングの実施
例を図面にもとづき説明する。図1は本発明の風洞試験
用スティングの第1実施例を示す図で、図1(A)は分
解した状態を示す斜視図、図1(B)は図1(A)の組
立状態を示す斜視図、図1(C)は図1(B)の矢視A
−A断面図、図2は第2実施例を示す図で、図2(A)
は組立状態を示す斜視図、図2(B)は図2(A)の矢
視B−B断面図、図3は第3実施例を示す図で、図3
(A)は全体斜視図、図3(B)は図3(A)の矢視C
−C断面図、図4は第4実施例を示す図で、図4(A)
は全体斜視図、図4(B)は図4(A)の矢視D−D断
面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sting for wind tunnel test of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a first embodiment of a sting for wind tunnel test of the present invention, FIG. 1 (A) is a perspective view showing a disassembled state, and FIG. 1 (B) shows an assembled state of FIG. 1 (A). FIG. 1C is a perspective view, and FIG.
-A sectional view, FIG. 2 is a view showing a second embodiment, and FIG.
3 is a perspective view showing an assembled state, FIG. 2 (B) is a sectional view taken along the line BB of FIG. 2 (A), and FIG. 3 is a view showing a third embodiment.
3A is an overall perspective view, and FIG. 3B is a view C in FIG. 3A.
-C sectional drawing, FIG. 4 is a figure which shows 4th Example, FIG.
Is an overall perspective view, and FIG. 4B is a cross-sectional view taken along the line DD of FIG. 4A.
【0013】図1に示す二重構造のスティングは、円形
スティングに適用するもので、芯材1、外皮材2、およ
び芯材1と外皮材2の間に充填される樹脂材3からな
る。The double structure sting shown in FIG. 1 is applied to a circular sting, and is composed of a core material 1, an outer skin material 2, and a resin material 3 filled between the core material 1 and the outer skin material 2.
【0014】芯材1は、先端に設けられ天秤を装着する
先端部4と、後端に設けられ風洞装置と連結する付根部
5とを設けた鋼製のもので、先端部4と付根部5との間
は矩形角状に形成されている。The core material 1 is made of steel and has a tip portion 4 provided at a tip end for mounting a balance and a root portion 5 provided at a rear end for connecting with a wind tunnel device. 5 and 5 are formed in a rectangular shape.
【0015】また、外皮材2は、同様に鋼製で、上面外
皮材2A、下面外皮材2Bからなる二ツ割形状にされて
おり、内部に芯材1を収容するための溝6が設けられて
いる。この溝6は芯材1を上面外皮材2A、下面外皮材
3Bで挟み込んだとき、外皮材2の内面と芯材1の外面
との間に、間隙ができる大きさのものとされている。ま
た、外皮材2の両側部には、上面外皮材2Aと下面外皮
材2Bを結合するための連結孔7が長手方向に等ピッチ
で設けられている。Similarly, the outer cover material 2 is made of steel and has a two-part shape composed of an upper surface cover material 2A and a lower surface cover material 2B, and a groove 6 for accommodating the core material 1 is provided inside. Has been. The groove 6 has such a size that when the core material 1 is sandwiched by the upper surface skin material 2A and the lower surface skin material 3B, a gap is formed between the inner surface of the outer skin material 2 and the outer surface of the core material 1. Further, connection holes 7 for connecting the upper surface skin material 2A and the lower surface skin material 2B are provided on both sides of the outer skin material 2 at equal pitches in the longitudinal direction.
【0016】このような、芯材1と外皮材2を図1
(B)に示すような組立状態にするには、外皮材2の溝
6に樹脂材3を適量充填し、芯材1の上、および下方か
ら、上面外皮材2A、および下面外皮材2Bを芯材1の
取付場所に押し付け、外皮材2の両側部長手方向に設け
た連結孔7にボルト8を挿入して、締付けていく。これ
により、上面外皮材2Aと下面外皮材2Bは、内部に芯
材1を挿入した状態で一体化される。また、外皮材2の
溝6に充填された樹脂材3は、ボルト8の締付けととも
に、その流動性により、芯材1の外面と外皮材2の内面
の間の間隙を完全に埋め、余剰分は分割面9、および芯
材1と外皮材2の結合部から外部へ漏出する。この樹脂
材3の固化をまって、本実施例の二重構造のスティング
は完成する。Such a core material 1 and an outer skin material 2 are shown in FIG.
In order to obtain the assembled state as shown in (B), an appropriate amount of the resin material 3 is filled in the groove 6 of the outer cover material 2, and the upper surface cover material 2A and the lower surface cover material 2B are attached from above and below the core material 1. The core material 1 is pressed against the mounting location, and the bolts 8 are inserted into the connection holes 7 provided in the longitudinal direction of both sides of the outer cover material 2 and tightened. As a result, the upper surface skin material 2A and the lower surface skin material 2B are integrated with the core material 1 inserted therein. Further, the resin material 3 filled in the groove 6 of the outer cover material 2 completely tightens the bolt 8 and, due to its fluidity, completely fills the gap between the outer surface of the core material 1 and the inner surface of the outer cover material 2, and the excess Leaks from the split surface 9 and the joint between the core material 1 and the outer skin material 2 to the outside. After the solidification of the resin material 3 is completed, the double structure sting of this embodiment is completed.
【0017】次に、図2に示す二重構造のスティング
は、平板スティングに適用するもので、第1実施例と同
様に天秤を装着する先端部4、および風洞装置と連結す
る付根部を具えた芯材11、芯材11の平板部12を両
側から被覆する外皮材13、および芯材11と外皮材1
3の間に充填する樹脂材14とからなる。そして、平板
部12の両側から内面に形成した16に樹脂材14を充
填した外皮材13を取付け、外皮材13の長手方向、
上、下端部に設けた連結孔7にボルト8を通し、締付け
ることにより、図2(A)に示すように組立状態とな
る。また、樹脂材14は、図2(B)に示すように芯材
11(平板部)の外周面と外皮材13の内周面の間に均
等に充填された状態となる。Next, the double structure sting shown in FIG. 2 is applied to a flat plate sting, and is provided with a tip portion 4 for mounting a balance and a root portion for connecting with a wind tunnel device as in the first embodiment. Core material 11, an outer skin material 13 that covers the flat plate portion 12 of the core material 11 from both sides, and the core material 11 and the outer skin material 1
3 and the resin material 14 to be filled between them. Then, the outer skin material 13 filled with the resin material 14 is attached to 16 formed on the inner surface from both sides of the flat plate portion 12, and the longitudinal direction of the outer skin material 13 is
A bolt 8 is passed through the connecting holes 7 provided at the upper and lower ends and tightened, whereby an assembled state is obtained as shown in FIG. 2 (A). 2B, the resin material 14 is evenly filled between the outer peripheral surface of the core material 11 (flat plate portion) and the inner peripheral surface of the outer skin material 13. As shown in FIG.
【0018】次に、図3は芯材21の外周面に、炭素繊
維強化プラスチック(CFRP)、又はガラス繊維強化
プラスチック(GFRP)等の繊維強化樹脂22をロー
ビングで巻き付け、外皮材2を芯材1に取付けた第1実
施例のスティング形状と同形状にしたものである。すな
わち、本実施例では芯材21とCFRP、又はGFRP
のみでスティングを形成している。Next, in FIG. 3, a fiber reinforced resin 22 such as carbon fiber reinforced plastic (CFRP) or glass fiber reinforced plastic (GFRP) is wound around the outer peripheral surface of the core material 21 by roving, and the outer cover material 2 is used as the core material. This is the same shape as the Sting shape of the first embodiment attached to No. 1. That is, in this embodiment, the core material 21 and CFRP or GFRP are used.
Only forms the sting.
【0019】次に、図4は平板スティングの芯材31の
平板部32両側部を切削して凹所を形成し、この凹所
に、前記GFRP、又はCFRPで作製した外皮33を
接着したものである。Next, FIG. 4 shows a case in which both sides of the flat plate portion 32 of the core material 31 of the flat plate sting are cut to form a recess, and the outer skin 33 made of GFRP or CFRP is adhered to the recess. Is.
【0020】本実施例は上述のように構成されるので、
図1,図2に示す第1、および第2実施例においては、
芯材1,11の先端部4に天秤を介して取付けられた風
洞模型に発生した振動荷重は芯材1,11を介して、外
皮材2,12に伝達されるが、芯材1,11と外皮材
2,13の間に充填された樹脂材3,14の制振作用に
より、熱エネルギーに変換され低減する。これらの実施
例においては、前記した従来の一体型スティングに比較
して、4〜5倍の構造減衰率が得られる。また、鋼製の
芯材1,11と外皮材2,13により、空力荷重に耐え
る風洞内の模型設置が可能になるとともに、スティング
の外形形状を、従来のものと同様に、風洞模型の後流を
実機と相似の流れにすることができる。Since this embodiment is constructed as described above,
In the first and second embodiments shown in FIGS. 1 and 2,
The vibration load generated in the wind tunnel model attached to the tip portion 4 of the core materials 1 and 11 via the balance is transmitted to the outer skin materials 2 and 12 via the core materials 1 and 11, but The resin material 3, 14 filled between the outer skin material 2 and the outer skin material 13 is converted into thermal energy and reduced by the damping effect. In these examples, a structural damping factor of 4 to 5 times is obtained as compared with the above-mentioned conventional integrated sting. In addition, the steel core materials 1 and 11 and the outer skin materials 2 and 13 enable model installation in a wind tunnel that can withstand aerodynamic loads, and the sting has the same outer shape as the conventional one. The flow can be made similar to that of the actual machine.
【0021】また、図3、図4に示す、第3、および第
4実施例においては、芯材21,31の表面に、繊維強
化樹脂22,32を取付ける事により重量軽減が出来、
先端に取付けられる風洞模型の固有振動数が上り、風洞
模型に発生する振動との共振が回避できると同時に、繊
維強化樹脂が持つ緩衝効果より制振出来る。さらに、ス
ティングの組立状態における外形形状は、従来のスティ
ングと略同じ形状にでき、風洞模型の後流を実機のもの
と相似でき、正確な実機特性を求めることができる。In the third and fourth embodiments shown in FIGS. 3 and 4, the weight can be reduced by attaching the fiber reinforced resins 22 and 32 to the surfaces of the core materials 21 and 31, respectively.
The natural frequency of the wind tunnel model attached to the tip rises, and resonance with the vibration generated in the wind tunnel model can be avoided, and at the same time, the damping effect can be suppressed by the buffer effect of the fiber reinforced resin. Further, the outer shape of the sting in the assembled state can be made substantially the same as that of the conventional sting, the wake of the wind tunnel model can be similar to that of the actual machine, and accurate actual machine characteristics can be obtained.
【0022】[0022]
【発明の効果】以上述べたように、本発明の風洞試験用
スティングによれば、請求項1に示す構成により (1)風洞模型に発生し、芯材先端に入った振動荷重
は、芯材と外皮材との間に充填した樹脂材により、振動
エネルギーが熱エネルギーに変換され低減する。これに
より、高速、および高迎角における風洞試験ができると
ともに、振動低減により風洞試験データの精度が向上す
る。As described above, according to the sting for wind tunnel test of the present invention, according to the constitution shown in claim 1, (1) the vibration load generated in the wind tunnel model and entering the tip of the core is The vibration energy is converted into thermal energy and reduced by the resin material filled between the outer skin material and the outer skin material. Thereby, the wind tunnel test can be performed at high speed and at a high angle of attack, and the accuracy of the wind tunnel test data can be improved by reducing the vibration.
【0023】また、風洞模型の後流は、従来スティング
と同様に、実機と相似の後流とすることができ、この面
からも風洞試験データの精度を向上させることができ
る。また、他の本発明の風洞試験用スティングによれ
ば、請求項2に示す構成より、 (2)上記(1)と同様の効果が得られるほか、スティ
ングの先端に取付けられる風洞模型の固有振動数を高め
ることができるので、風洞模型に発生する振動が発散す
るようなことはなく、風洞試験の自由度が増す。Further, the wake of the wind tunnel model can be a wake similar to the actual machine, as in the conventional Sting, and the accuracy of the wind tunnel test data can be improved also from this aspect. Further, according to another sting for wind tunnel test of the present invention, from the configuration shown in claim 2, (2) the same effect as (1) above can be obtained, and the natural vibration of the wind tunnel model attached to the tip of the sting. Since the number can be increased, the vibration generated in the wind tunnel model does not diverge, and the degree of freedom in the wind tunnel test increases.
【図1】本発明の風洞試験用スティングの第1実施例を
示す図で、図1(A)は分解した状態を示す斜視図、図
1(B)は図1(A)の組立状態を示す斜視図、図
(C)は図1(B)の矢視A−A断面図。FIG. 1 is a view showing a first embodiment of a sting for wind tunnel test of the present invention, FIG. 1 (A) is a perspective view showing a disassembled state, and FIG. 1 (B) is an assembled state of FIG. 1 (A). 1C is a perspective view, and FIG. 1C is a cross-sectional view taken along the line AA of FIG.
【図2】本発明の第2実施例を示す図で、図2(A)は
組立状態を示す斜視図、図2(B)は図2(A)の矢視
B−B断面図。FIG. 2 is a view showing a second embodiment of the present invention, FIG. 2 (A) is a perspective view showing an assembled state, and FIG. 2 (B) is a sectional view taken along the line BB of FIG. 2 (A).
【図3】本発明の第3実施例を示す図で、図3(A)は
全体斜視図、図3(B)は図3(A)の矢視C−C断面
図。FIG. 3 is a diagram showing a third embodiment of the present invention, FIG. 3 (A) is an overall perspective view, and FIG. 3 (B) is a sectional view taken along the line CC of FIG. 3 (A).
【図4】図4は第4実施例を示す図で、図4(A)は全
体斜視図、図4(B)は図4(A)の矢視D−D断面
図。FIG. 4 is a view showing a fourth embodiment, FIG. 4 (A) is an overall perspective view, and FIG. 4 (B) is a sectional view taken along the line DD of FIG. 4 (A).
【図5】スティングに風洞模型をセットした状態を示
す、一部断面図による側面図。FIG. 5 is a partial cross-sectional side view showing a wind tunnel model set in a sting.
【図6】従来の円形スティングを示す斜視図。FIG. 6 is a perspective view showing a conventional circular sting.
【図7】従来の平板スティングを示す斜視図である。FIG. 7 is a perspective view showing a conventional flat plate sting.
1,11,21,31 芯材 2,13 外皮材 3,14 樹脂材 4 先端部 5 付根部 6,16 溝部 7 取付孔 8 ボルト 9 分割面 12,32 平板部 22,23 繊維強化樹脂 1,11,21,31 Core material 2,13 Skin material 3,14 Resin material 4 Tip part 5 Root part 6,16 Groove part 7 Mounting hole 8 Bolt 9 Dividing surface 12,32 Flat plate part 22,23 Fiber reinforced resin
Claims (2)
して連結し、風洞計測部に設置する風洞試験用スティン
グにおいて、前記天秤を固着する先端部、および風洞装
置と連結する付根部を設けた鋼製の芯材と、間隙を設け
て前記芯材を被覆し、前記風洞模型の後流を整流する鋼
製の外皮材と、前記芯材と外皮材の間に充填し、前記芯
材の振動を減衰する樹脂材とからなることを特徴とする
風洞試験用スティング。1. A wind tunnel test sting in which a wind tunnel model for measuring aerodynamic characteristics is connected via a balance and installed in a wind tunnel measuring section, and a tip portion for fixing the balance and a root portion for connecting with a wind tunnel device are provided. A steel outer core material that covers the core material with a gap provided between the core material and the steel core material and rectifies the wake of the wind tunnel model, and the core material is filled between the core material and the outer skin material, and the core material A sting for a wind tunnel test, which is made of a resin material that attenuates the vibration of.
して連結し、風洞計測部に設置する風洞試験用スティン
グにおいて、前記天秤を固着する先端部、および風洞装
置と連結する付根部を設けた鋼製の芯材と、前記芯材を
被覆し前記風洞模型の後流を整流するとともに、前記芯
材の振動を減衰する繊維強化樹脂からなることを特徴と
する風洞試験用スティング。2. A wind tunnel test sting in which a wind tunnel model for measuring aerodynamic characteristics is connected via a balance and installed in a wind tunnel measuring section, and a tip portion for fixing the balance and a root portion for connecting with a wind tunnel device are provided. And a steel core material and a fiber-reinforced resin that covers the core material to rectify the wake of the wind tunnel model and attenuates the vibration of the core material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21581694A JPH0875596A (en) | 1994-09-09 | 1994-09-09 | Stinger for wind tunnel test |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21581694A JPH0875596A (en) | 1994-09-09 | 1994-09-09 | Stinger for wind tunnel test |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0875596A true JPH0875596A (en) | 1996-03-22 |
Family
ID=16678736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21581694A Withdrawn JPH0875596A (en) | 1994-09-09 | 1994-09-09 | Stinger for wind tunnel test |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0875596A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002021097A1 (en) * | 2000-09-07 | 2002-03-14 | Bae Systems Plc | Wind tunnel testing |
CN110057534A (en) * | 2019-05-24 | 2019-07-26 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of attachment device and connection method of balance and aeration type strut |
CN110160738A (en) * | 2019-03-21 | 2019-08-23 | 北京机电工程研究所 | For the fairing of aerofoil wind tunnel test, design method and blended wing-body device |
CN112304562A (en) * | 2020-10-30 | 2021-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Force and heat measuring integrated model device for hypersonic wind tunnel |
CN112304561A (en) * | 2020-10-23 | 2021-02-02 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel internal balance nacelle supporting test device |
-
1994
- 1994-09-09 JP JP21581694A patent/JPH0875596A/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002021097A1 (en) * | 2000-09-07 | 2002-03-14 | Bae Systems Plc | Wind tunnel testing |
CN110160738A (en) * | 2019-03-21 | 2019-08-23 | 北京机电工程研究所 | For the fairing of aerofoil wind tunnel test, design method and blended wing-body device |
CN110160738B (en) * | 2019-03-21 | 2020-10-23 | 北京机电工程研究所 | Rectifying device for wing surface wind tunnel test, design method and wing body fusion device |
CN110057534A (en) * | 2019-05-24 | 2019-07-26 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of attachment device and connection method of balance and aeration type strut |
CN110057534B (en) * | 2019-05-24 | 2023-11-24 | 中国空气动力研究与发展中心超高速空气动力研究所 | Device and method for connecting balance and ventilation type support rod |
CN112304561A (en) * | 2020-10-23 | 2021-02-02 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel internal balance nacelle supporting test device |
CN112304562A (en) * | 2020-10-30 | 2021-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Force and heat measuring integrated model device for hypersonic wind tunnel |
CN112304562B (en) * | 2020-10-30 | 2022-02-25 | 中国空气动力研究与发展中心超高速空气动力研究所 | Force and heat measuring integrated model device for hypersonic wind tunnel |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4332525A (en) | Matched stiffness rotor flexbeam and blade system | |
JPH11107704A (en) | Guide vane for gas turbine, segment thereof, and guide vane ring composite body | |
WO2017201713A1 (en) | Mounting device for mounting motion sensor, and unmanned aerial vehicle | |
JP2002173094A (en) | Link part for aircraft engine fixing system | |
JPH10297599A (en) | Solar heat power generator for satellite | |
US20110182730A1 (en) | Wind turbine blade with damping element for edgewise vibrations | |
JPH0875596A (en) | Stinger for wind tunnel test | |
US8602733B2 (en) | Structural and acoustical vibration dampener for a rotatable blade | |
Tang et al. | Effects of angle of attack on nonlinear flutter of a delta wing | |
US20100148027A1 (en) | Sensor bracket for at least one sensor on a gas turbine | |
RU2382911C1 (en) | Fan hollow blade | |
Chen et al. | Dynamic stability of rotating composite shafts under periodic axial compressive loads | |
Kumar et al. | Dynamic instability analysis of multifunctional composite structures | |
US20230020641A1 (en) | Modular wind turbine blade with vibration damping | |
CA2421453C (en) | Wind tunnel testing | |
JP2017534793A (en) | Wind turbine rotor blade | |
Kuttenkeuler et al. | Aeroelastic tailoring considering uncertainties in material properties | |
CN113432825B (en) | Wind tunnel aircraft tail boom model semi-active vibration damper based on magnetorheological elastomer | |
Chen et al. | Wide bandwidth wind-induced vibration energy harvester with an angle section head | |
Kim et al. | Finite element analysis of free vibrations of laminated composite plates | |
CN111288090B (en) | Composite material transmission shaft connecting structure | |
Okamoto et al. | Vibration analysis of a high speed and light weight rotor system subjected to a pitching or turning motion: II: A flexible rotor system on flexible suspensions | |
CN106081168B (en) | A kind of control-moment gyro rotor-support-foundation system absorbing damping unit | |
Csaba et al. | Optimization of friction damper weight, simulation and experiments | |
JP2846589B2 (en) | Cable-stayed bridge cable damping device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20011120 |