JPH02159533A - Intermittent diffusion type tunnel tester - Google Patents
Intermittent diffusion type tunnel testerInfo
- Publication number
- JPH02159533A JPH02159533A JP31468588A JP31468588A JPH02159533A JP H02159533 A JPH02159533 A JP H02159533A JP 31468588 A JP31468588 A JP 31468588A JP 31468588 A JP31468588 A JP 31468588A JP H02159533 A JPH02159533 A JP H02159533A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- wind tunnel
- signal
- support fitting
- model
- 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
- 238000009792 diffusion process Methods 0.000 title description 3
- 238000007664 blowing Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は。間欠吹出式風洞試験装置の起動時に供試模
型が破損するのを防止する技術に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention... The present invention relates to a technique for preventing damage to a test model when starting up an intermittent blow-out wind tunnel test device.
第５図は間欠吹出式１虱洞試験装置の一例であり、図に
おいて０３は貯気槽、（１４は元弁。ｆ１９け圧力制御
弁。ａｔｉは集合胴、α力は計測胴。開は拡散胴である
。Figure 5 shows an example of an intermittent blow-out type 1-hole test device. In the figure, 03 is an air storage tank, (14 is a main valve. It is a diffusion shell.
第６図は超音速領域で風洞試験を行う場合の計測胴の状
態を示Ｌ２゜（１）は供試模型。６１は支持金具である
。超音速試験時には、計測胴は空気力学）二の要求から
第６図に示すようなノズル形状となっており、その形状
は所定の風速パラメータに、適合したものになっている
。第７図は従来の模型支持装置の一例であるっ供試模型
（１１はボルト■ＫＪ：り支持金具Ｇ１に固定され、さ
らにこの支持装置（１！１３はポルｌにより計測胴０η
に固定される。Figure 6 shows the state of the measurement barrel when conducting a wind tunnel test in the supersonic region, and L2° (1) is a test model. 61 is a support metal fitting. During the supersonic test, the measurement barrel has a nozzle shape as shown in FIG. 6 due to aerodynamic requirements, and the shape is adapted to predetermined wind speed parameters. Figure 7 shows an example of a conventional model support device.
Fixed.
間欠吹出式風洞試験装置で司音速試験を実施する場合９
風洞起動時には、集合胴０ｅの内圧を設定する圧力制御
弁ａ９が開き、集合胴内の圧力が上昇し。それにより計
測胴αηのノズル部に衝撃波が発生する。この衝撃波は
非定常な流れとなり計測胴内金下流へ移動する。ところ
で計測胴内に固定された供試模型（１）は、この衝撃波
が通過する際に急激な圧力変＠ｈをうけ、非常に大きい
振動荷重をうける。When conducting a sound velocity test using an intermittent blow-out wind tunnel test device 9
When the wind tunnel is started, the pressure control valve a9 that sets the internal pressure of the collecting shell 0e opens, and the pressure inside the collecting shell increases. As a result, a shock wave is generated in the nozzle portion of the measurement cylinder αη. This shock wave becomes an unsteady flow and moves downstream of the measurement cylinder. By the way, the test model (1) fixed in the measurement cylinder undergoes a sudden pressure change @h when this shock wave passes through, and is subjected to a very large vibration load.
一方０間欠吹出式風洞試験装置でフラッタ試験を行う場
合、空気力学上および弾性力学による相似則により供試
模型の剛性を低くする必要がある。On the other hand, when performing a flutter test using a zero-intermittent blow-out type wind tunnel test device, it is necessary to reduce the rigidity of the test model due to the similarity law based on aerodynamics and elastic mechanics.
このため風洞起動前に供試模型を計測胴内に固定する従
来の方法によると前記の振動荷重により模型が破損する
という課題がある。For this reason, the conventional method of fixing the test model in the measurement shell before starting up the wind tunnel has the problem that the model is damaged by the vibration load described above.
この発明はこのような課題を解決するためになされたも
のて、に洞起動の際の＠撃波通過時の振動荷重より供試
模型を保護し、破損を防止することを目的とする。The present invention was made to solve the above problems, and the object is to protect the test model from the vibration load when the shock wave passes during startup, and to prevent damage.
〔課題を解決するための手段〕 この発明にかかる間欠吹出式風洞試験装置は。[Means to solve the problem] The intermittent blowing wind tunnel test device according to the present invention is as follows.
模型を計測胴外へ格納する手段と、模型を計測胴内へ投
入する手段と、計測胴内の圧力を検出する圧力検出器と
、風洞の起動完了を判定する手段と。A means for storing the model outside the measurement shell, a means for throwing the model into the measurement shell, a pressure detector for detecting the pressure inside the measurement shell, and a means for determining completion of startup of the wind tunnel.
模型の投入を制御する手段とを設けたものである。A means for controlling the input of the model is provided.
この発明においては、風洞起動時には供試模型を計測胴
外へ格納し、圧力検出器からの信号により風洞起動が完
了したことを判定し、模型を計測胴内へ自動的に投入す
ることができる。In this invention, when the wind tunnel is started, the test model is stored outside the measurement barrel, and it is determined that the wind tunnel startup has been completed based on a signal from the pressure detector, and the model can be automatically thrown into the measurement barrel. .
第１図はこの発明の一実施例の全体構成図である。図に
おいて（２）は供試模型を格納する格納箱。FIG. 1 is an overall configuration diagram of an embodiment of the present invention. In the figure, (2) is a storage box that stores the test model.
（５）は模型を投入するだめの空気圧アクチュエータ。(5) is a pneumatic actuator for inserting the model.
（７）は圧力検出器であり、この圧力検出器からの信号
全入力とする起動判定手段により風洞が起動全完了した
ことを判断し、その出力に基づき制御手段（９）により
パルプａυを開閉して空気源α傷からの空気圧を制御し
、アクチュエータ（５）全動作させるよう構成されてい
る。(7) is a pressure detector, and the startup determination means that receives all the signals from this pressure detector determines that the wind tunnel has been fully started, and based on the output, the control means (9) opens and closes the pulp aυ. The actuator (5) is configured to fully operate by controlling the air pressure from the air source α.
第２図（ａ）、 （ｂ）は第１図の実施例で使用される
模型支持装置（１３の構成図である。図において、供試
模型（１）は支持金具（３）Ｋ固定される。この支持金
具（３）にはガイドローラ（４）が取付けてあり、格納
箱（２）内をスライドできるようになっており、プッシ
ュロッド（６：を介してアクチュエータ（５）に連結さ
れている。FIGS. 2(a) and 2(b) are block diagrams of the model support device (13) used in the embodiment shown in FIG. A guide roller (4) is attached to this support fitting (3) so that it can slide inside the storage box (2), and is connected to the actuator (5) via a push rod (6). ing.
第３図（ａ）、 （ｂ）はこの発明の詳細な説明する図
である。上記のように構成された間欠吹出式風洞試験装
置においては、風洞起動時には第２図（ａ）、 （ｂ）
に示すように供試模型（１）は格納箱（２）内に格納さ
れている。そして起動判定手段により風洞起動が完了し
たと判断されると、第３図（ａ）、 （ｂ）に示すよう
にアクチュエータ（５）がプッシュロッド（６）を介シ
て支持金具（３）を押し、供試模型（１）が所定の位置
にくるまで取付金具（３）ｔ−矢印（１）方向にスライ
ドさせ、。FIGS. 3(a) and 3(b) are diagrams explaining the invention in detail. In the intermittent blowing type wind tunnel test device configured as described above, when the wind tunnel is started, Fig. 2 (a) and (b)
As shown in , the test model (1) is stored in a storage box (2). When the startup determination means determines that the wind tunnel startup has been completed, the actuator (5) engages the support fitting (3) via the push rod (6) as shown in FIGS. 3(a) and 3(b). Push and slide the mounting bracket (3) in the t-arrow (1) direction until the test model (1) is in the specified position.
プッシュロッド（６）およびガイドローラ（４）により
支持金具（３）を所定の位置で固定する。The support fitting (3) is fixed in place by the push rod (6) and guide roller (4).
第４図は風洞が起動完了したことを判定する判定動作の
説明図である。図においてｔｇは風洞起動を開始した時
刻、 ｔｌ は風洞が起動完了した時刻、 ｔ２は
時刻ｔ１ から規定の時間Δｔ０例えば１秒が経過した
時刻である。時刻ｔＱ に風洞の起動を開始すると、計
測胴内の圧力は大気圧ｐｏからマツハ数に応じた所定の
圧力Ｐ１ まで急激に上昇し０時刻ｔ１ に所定の
圧力Ｐ１ に静定する。起動判定手段（８）は圧力検
出器（７）からの信号により計測胴内の圧力が所定の圧
力Ｐ１ に達し、その圧力が規定時間Δｔの間保持され
た場合、ａ洞の起動が完了したと判定し、信号全出力す
る。FIG. 4 is an explanatory diagram of the determination operation for determining that the wind tunnel has completed startup. In the figure, tg is the time when the wind tunnel startup started, tl is the time when the wind tunnel startup is completed, and t2 is the time when a prescribed time Δt0, for example, 1 second has passed from the time t1. When starting up the wind tunnel at time tQ, the pressure inside the measurement cylinder rapidly rises from the atmospheric pressure po to a predetermined pressure P1 according to the Matsuha number, and statically settles to the predetermined pressure P1 at time t1. The activation determination means (8) determines that activation of the sinus a is completed when the pressure within the measurement cylinder reaches a predetermined pressure P1 based on a signal from the pressure detector (7) and this pressure is maintained for a specified time Δt. It is determined that this is the case and the full signal is output.
以上のようにこの発明によれば、風洞起動時には供試模
型を計測胴外へ格納し、また風洞が起動完了したことを
自動的に判定し、供試模型を計測胴内に投入するよう構
成したので、起動の際の衝撃波通過により供試模型に振
動荷重がかかり破損することを防止できる効果がある。As described above, according to the present invention, the test model is stored outside the measurement shell when the wind tunnel is started, and it is automatically determined that the wind tunnel has started, and the test model is placed into the measurement shell. Therefore, it is possible to prevent the test model from being damaged due to the vibration load applied to it due to the passage of shock waves during startup.
第１図はこの発明の一実施例の構成を示す図。
第２図（ａ）は模型支持装置の一部欠載の上面図、第２
図（ｂ）は第２図（、）に示したものの一部欠載の側面
図、第３図（、）は模型支持装置の動作を説明する一部
欠載の上面図、第３図（ｂ）は第３図（、）に示したも
のの一部欠載の側面図、第４図は起動判定手段の動作説
明用線図。第５図は間欠吹出式風洞試験装置の一構成例
を・示す図、第６図は超音速試験を行う場合の計測胴の
状態を示す゛図、第Ｔ図は従来の模型支持装置の一例を
示す図である。図中（１）は供試模型７（２）は格納箱
、（３）は支持金具、（４）はガイドローラ、（５）は
空気圧アクテュエータ、（６）はプッシュロッド。（７
）は圧力検出器。１Ｂ）は起動判定手段。
（９）は制御手段。ａｉｔｉ空気源、αＩ）はバルブ、
Ｃ２は模型支持装置、ａｍは貯気槽、Ｃ４け元弁。ａｉ
は圧力制御弁、 （Ｉｆ！け集合胴、ａｙ＋ｔま計測胴
。舖は拡散胴。ａ唖は支持金具、 ａｎ、 Ｃ２υはボ
ルトである。
なお図中同一符号は同一または相当部分を示ｆ。FIG. 1 is a diagram showing the configuration of an embodiment of the present invention. Figure 2 (a) is a top view of the model support device with some parts missing;
Figure (b) is a side view of the part shown in Figure 2 (, ), and Figure 3 (,) is a top view of the part shown in Figure 3 (,), which is partially missing, explaining the operation of the model support device. b) is a partially omitted side view of the one shown in FIG. Figure 5 is a diagram showing an example of the configuration of an intermittent blow-out wind tunnel test device, Figure 6 is a diagram showing the state of the measurement cylinder when conducting a supersonic test, and Figure T is an example of a conventional model support device. FIG. In the figure, (1) is the test model 7, (2) is the storage box, (3) is the support fitting, (4) is the guide roller, (5) is the pneumatic actuator, and (6) is the push rod. (7
) is a pressure detector. 1B) is a start-up determination means. (9) is a control means. aiti air source, αI) is a valve,
C2 is a model support device, am is an air storage tank, and C4 is a valve. ai
is a pressure control valve, (If! collection cylinder, ay + t is a measurement cylinder, or a diffusion cylinder. a is a support fitting, an, and C2υ are bolts. In addition, the same reference numerals in the drawings indicate the same or equivalent parts f.
Claims (1)
、供試模型と、前記供試模型を格納する格納箱と、前記
供試模型を支持し格納箱内をスライド可能な支持金具と
、前記支持金具の移動をガイドし且つ支持金具を支える
ガイド機構と、前記支持金具を駆動する空気圧アクチュ
エータと、前記支持金具と前記アクチュエータの間に取
り付けられ、前記アクチュエータの動力を前記支持金具
に伝えるプッシュロッドと、風洞壁に取り付けられた圧
力検出器と、前記圧力検出器からの信号により風洞の起
動完了を判断し前記アクチュエータを動作させる制御装
置とを備えたことを特徴とする間欠吹出式風洞試験装置
。An intermittent blowing wind tunnel test device for conducting tests in the supersonic speed range, comprising: a test model; a storage box for storing the test model; a support fitting that supports the test model and is slidable inside the storage box; a guide mechanism that guides the movement of the support fitting and supports the support fitting; a pneumatic actuator that drives the support fitting; and a push rod that is attached between the support fitting and the actuator and transmits the power of the actuator to the support fitting. An intermittent blowing wind tunnel test device comprising: a pressure detector attached to a wind tunnel wall; and a control device that determines completion of startup of the wind tunnel based on a signal from the pressure detector and operates the actuator. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31468588A JPH02159533A (en) | 1988-12-13 | 1988-12-13 | Intermittent diffusion type tunnel tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31468588A JPH02159533A (en) | 1988-12-13 | 1988-12-13 | Intermittent diffusion type tunnel tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02159533A true JPH02159533A (en) | 1990-06-19 |
Family
ID=18056318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31468588A Pending JPH02159533A (en) | 1988-12-13 | 1988-12-13 | Intermittent diffusion type tunnel tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02159533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758611A (en) * | 2016-03-07 | 2016-07-13 | 中国空气动力研究与发展中心高速空气动力研究所 | Impact resisting device for wind-tunnel balance |
-
1988
- 1988-12-13 JP JP31468588A patent/JPH02159533A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758611A (en) * | 2016-03-07 | 2016-07-13 | 中国空气动力研究与发展中心高速空气动力研究所 | Impact resisting device for wind-tunnel balance |
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