JPS63173799A - Ice-coating force measuring device - Google Patents
Ice-coating force measuring deviceInfo
- Publication number
- JPS63173799A JPS63173799A JP62003393A JP339387A JPS63173799A JP S63173799 A JPS63173799 A JP S63173799A JP 62003393 A JP62003393 A JP 62003393A JP 339387 A JP339387 A JP 339387A JP S63173799 A JPS63173799 A JP S63173799A
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- icing
- cylinder device
- opening
- force
- 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
- 239000011248 coating agent Substances 0.000 title 1
- 238000000576 coating method Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010008 shearing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、各種物体表面の除氷対策に必要な着氷力を求
めるため対象物と同一材料の試験片に着氷させ効率的、
高精度に着氷力を測定する着氷力測定装置に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides an efficient method of applying ice to a test piece made of the same material as the object in order to determine the icing force necessary for deicing the surface of various objects.
The present invention relates to an icing force measurement device that measures icing force with high precision.
従来の着氷力測定装置は、試験片の表面に水を塗布して
氷片を付着させるか、試験片の表面で水を氷結させ、テ
ンション・メータあるいはロート９・セル等を用い人力
またはエア・シリンダ等でせん断力による着氷力を測定
する、いわゆる静的試験装置がほとんどであり、航空機
等の飛行中の着氷現象である物体表面に過冷却却水滴が
衝突して氷結する場合等における着氷力を効率的に精度
よく測定できる装置は見当らない。Conventional icing force measurement devices either apply water to the surface of the test piece to attach ice chips, or freeze water on the surface of the test piece, and then manually or air-build it using a tension meter, funnel 9 cell, etc.・Most of them are so-called static test devices that measure the icing force due to shear force in cylinders, etc., and are used in cases where supercooled water droplets collide with the surface of an object and freeze, which is an icing phenomenon during flight of an aircraft etc. There is no device that can efficiently and accurately measure the icing force at
第５図および第６図は前者の例を、また第７図は１．後
者の例をそれぞれ示す。Figures 5 and 6 show the former example, and Figure 7 shows the example of 1. Examples of the latter are shown below.
第５図において、 ０１は試験片、０２は試験片０１に
付着された氷片、０３はロード・セル、ｏ４は試験片０
１と氷片０２間の着氷面にせん断力な作用させるエア・
シリンダ装置をそれぞれ示す。上記ロード・セル０３は
、エア・シリンダ装置０４のロッド０４１に図示のよう
に取付けられている。（本明細書においては、シリンダ
及びロッドを含めてシリンダ装置というととｋする。）
第６図において、０１は試験片、０２０は氷、０３はロ
ード・セル、０４はエア・シリンダ装置、０５はすンダ
を、それぞれ示し、リング０５内に氷０２０が形成され
ている。In Figure 5, 01 is the test piece, 02 is the ice piece attached to test piece 01, 03 is the load cell, and o4 is the test piece 0.
Air that acts as a shearing force on the icing surface between 1 and ice piece 02
Each cylinder device is shown. The load cell 03 is attached to the rod 041 of the air cylinder device 04 as shown. (In this specification, the cylinder device includes the cylinder and rod.) In Fig. 6, 01 is the test piece, 020 is the ice, 03 is the load cell, 04 is the air cylinder device, and 05 is the test piece. The ice 020 is shown inside the ring 05, respectively.
第７図において、０１は試験片（内筒）、２００は過冷
却水滴、０３はローｒ・セル、０４はエア・シリンダ装
置、０５０は試験片０１が挿入された外筒、０６は外筒
０５０に設けられた開口をそれぞれ示し、過冷却水滴２
００は矢印の方に向って流れて試験片ｏ１の開口０６に
面する面上に氷が形成される。In Fig. 7, 01 is the test piece (inner cylinder), 200 is a supercooled water droplet, 03 is a low cell, 04 is an air cylinder device, 050 is an outer cylinder into which test piece 01 is inserted, and 06 is an outer cylinder. The openings provided at 050 are shown, and the supercooled water droplets 2
00 flows in the direction of the arrow, and ice is formed on the surface of the test piece o1 facing the opening 06.
第５図および第６図の従来例の場合、航空機等の着氷現
象である物体表面に過冷却水滴が衝突して氷結する場合
の着氷力データは得られない。また、着氷面に不均一に
空気が混入する尋常に全面を均一に氷結させるのは非常
にむつかしいとい５問題点があった。In the case of the conventional examples shown in FIGS. 5 and 6, icing force data cannot be obtained when supercooled water droplets collide with the surface of an object such as an aircraft and freeze. Another problem was that it was extremely difficult to uniformly freeze the entire surface because air was mixed in unevenly on the icing surface.
第７図の従来例の場合、試験片が過冷却水滴を流す風圧
等によって下流側に押し付けられるため、過冷却水滴が
開口部の試験片の外に開口部の周辺の外筒と試験片（内
筒）とのスキ間に氷結する恐れがあり、さらに、着氷力
の測定に当っては試験片と外筒との摩擦力を考慮する必
要があり測定精度的に問題があった。In the case of the conventional example shown in Fig. 7, the test piece is pushed downstream by the wind pressure that causes the supercooled water droplets to flow, so the supercooled water droplets flow outside the test piece at the opening and into the outer cylinder around the opening ( There is a risk of freezing between the test piece and the inner cylinder), and furthermore, when measuring the icing force, it is necessary to take into account the frictional force between the test piece and the outer cylinder, which poses a problem in terms of measurement accuracy.
本発明は、以下説明するように上記の従来のもの工欠点
を解決しようとするものである。The present invention attempts to solve the above-mentioned conventional manufacturing defects as explained below.
本発明は、着氷力測定装置において試験片、開口を有す
る試験片保持具、上記試験片を開口に押しつける保持用
シリンダ装置、上記試験片表面の上記開口に面する部分
に形成された着氷面にせん断力な加える試験片負荷用シ
リンダ装置、上記両シリンダ装置に圧力流体を給排する
セレクタ部及び上記試験片負荷用シリンダ装置に設けら
れたロードセル等の着氷力計測部からなることを特徴と
する。The present invention relates to an icing force measuring device that includes a test piece, a test piece holder having an opening, a holding cylinder device for pressing the test piece against the opening, and a holding cylinder device for pressing the test piece against the opening. It consists of a test piece loading cylinder device that applies shear force to the surface, a selector unit that supplies and discharges pressure fluid to both of the cylinder devices, and an icing force measurement unit such as a load cell installed in the test piece loading cylinder device. Features.
本発明において、着氷時は、保持用エア・シリンダ装置
で試験片を開口部に押し付けるようにしている。In the present invention, when icing occurs, a holding air cylinder device is used to press the test piece against the opening.
また、着氷力計測時には、保持用エア・シリンダをリリ
ースして、試験片負荷用シリンダ装置で着氷面にせん断
力な加えるようにしている。Furthermore, when measuring the icing force, the holding air cylinder is released and the test piece loading cylinder device applies shearing force to the icing surface.
本発明は、上記の構成を有するものであって、着氷時は
、試験片を保持用エア・シリンダ装置で試験片保持具の
開口に押し付けるため、試験片と開口部のスキ間が生じ
ないので試験片表面上の開口に面する部分以外は着氷が
起こらない。The present invention has the above-mentioned configuration, and when icing occurs, the test piece is pressed against the opening of the test piece holder by the holding air cylinder device, so that no gap is created between the test piece and the opening. Therefore, icing does not occur on the surface of the test piece other than the part facing the opening.
さらに、着氷力計測時には保持用エア・シリンダ装置を
ＩＪ １７−スするので試験片は、開口部に形成された
着氷面のみで保持されるととＫなり、着氷力測定データ
には余分な着氷面や申擦力による力が含まれない。Furthermore, when measuring the icing force, the holding air cylinder device is injected, so the test piece is held only by the icing surface formed in the opening, and the icing force measurement data does not include the icing force measurement data. It does not include forces due to extra icing surface or force due to friction.
以上から、本発明では効率的かつ高精度に着氷力を測定
することができる。From the above, according to the present invention, the icing force can be measured efficiently and with high precision.
本発明の一実施例を第１図ないし第４図を参照して具体
的に説明する。本実施例の着氷力測定装置は、例えば、
第１図に示すように着氷風洞ｌの計測部２に設けられる
。An embodiment of the present invention will be specifically described with reference to FIGS. 1 to 4. The icing force measurement device of this embodiment is, for example,
As shown in FIG. 1, it is installed in the measuring section 2 of the icing wind tunnel 1.
第２図に示すように、８角形状の平板の試験片Ａ（第４
図参照）は、計測部２内の試験片保持具Ｂの内部におい
て試験片保持用エア・シリンダ装置Ｃによって同保持具
Ｂの前面の開口Ｎ（第３図参照）に面する位置におかれ
る。Ｐは上下方向に伸びるロッドＤを有する試験片負荷
用エア・シリンダ装置であり、同ロッドＤには計測用の
ロード・セルＥが設けられ、その先端は試験片Ａの下面
に接している。上記試験片保持用エア・シリンダ装置Ｃ
は試験片保持具Ｂの後側の孔Ｂ１ に挿入され、またロ
ッドＤは下側の孔Ｂ２に挿入されている。As shown in Figure 2, an octagonal flat plate specimen A (fourth
(see figure) is placed inside the test piece holder B in the measuring section 2 by the air cylinder device C for holding the test piece at a position facing the opening N (see figure 3) on the front side of the holder B. . P is a test piece loading air cylinder device having a rod D extending in the vertical direction, and the rod D is provided with a measurement load cell E, the tip of which is in contact with the lower surface of the test piece A. Air cylinder device C for holding the above test piece
is inserted into the rear hole B1 of the test specimen holder B, and the rod D is inserted into the lower hole B2.
Ｇは試験片保持用エア・シリンダ装置Ｃと空気源との間
に設けられた第一の３．ｔｆ−）２位置切換弁であり、
Ｈは試験片負荷用エア・シリンダ装置と空気源との間に
設けられた第二の３ポ一ト２位置切換弁であり、試験片
負荷用エア・シリンダ装置Ｆと第二の切換弁Ｈとの間に
はスピード・コントロール・バルプエが設けられ【いる
。空気源と上記第一、第二の切換弁Ｇ、Ｈとの間には、
図示のようにフィルタＬ、減圧弁に１圧力計Ｊが設けら
れている。G is the first 3.G provided between the test piece holding air cylinder device C and the air source. tf-) is a two-position switching valve,
H is a second 3-point, 2-position switching valve provided between the air cylinder device for loading the test piece and the air source, and the air cylinder device F for loading the test piece and the second switching valve H A speed control valve is installed between the two. Between the air source and the first and second switching valves G and H,
As shown in the figure, one pressure gauge J is provided on the filter L and the pressure reducing valve.
また、ロードセルＥは、ストレイン・アンプ３を介して
Ｘ−Ｙレコーダ４に接続されている。Further, the load cell E is connected to an XY recorder 4 via a strain amplifier 3.
本実施例においては、着氷風洞１計１１１１部２内の試
験片保持具Ｂの開口Ｎに、各種材料の試験片Ａを第一の
３−）ｆ−）２位置切換弁Ｇを切換えることにより試験
片保持用エア・シリンダ族ｆＮＣに圧力を加え押し付け
る。この状態で、着氷風洞ｌを作動させて過冷却水滴流
５を開口Ｎに向けて流し試験片保持具の開口Ｎに面する
部分にいろいろな着氷条件下で着氷させる。着氷完了後
、第一の３ポ一ト２位置切換弁Ｇを切換え、試験片保持
用エアシリンダ装置Ｃの圧力を放出し、同エア・シリン
ダ装置Ｃを試験片Ａよりリリースし、その上で第二の３
ポ一ト２位置切換弁Ｈを切換え、着氷力計測用エア・シ
リンダ装置１ｉ′に圧力を加えて作動させ、ロッドＤを
介して試験片Ａの着氷面にせん断力を加える。着氷力を
除去する時のせん断力は、ロート９・セルＥで計測し、
ストレイン・アンプ３を介してＸ−Ｙレコーダ４に記録
され、着氷力の測定が行われる。In this example, the test pieces A of various materials are placed in the opening N of the test piece holder B in the icing wind tunnel 1 in total 1111 parts 2 by switching the first 3-) f-) two-position switching valve G. Pressure is applied to the air cylinder group fNC for holding the test piece. In this state, the icing wind tunnel 1 is operated to direct the supercooled water droplet flow 5 toward the opening N to cause ice to form on the portion of the test piece holder facing the opening N under various icing conditions. After the icing is completed, switch the first 3-point 2-position switching valve G, release the pressure in the air cylinder device C for holding the test piece, release the air cylinder device C from the test piece A, and then And the second 3
The point-to-two position switching valve H is switched, pressure is applied to the air cylinder device 1i' for icing force measurement, and the shearing force is applied to the icing surface of the test piece A via the rod D. The shear force when removing the icing force is measured with funnel 9 and cell E.
It is recorded on the X-Y recorder 4 via the strain amplifier 3, and the icing force is measured.
なお、せん断力な加えるスピードはスピード・コントロ
ール・バルプエによって調整できる。The speed at which the shearing force is applied can be adjusted using the speed control valve.
本実施例は、上記のように、試験片Ａを試験片保持用シ
リンダ装置Ｃによって保持具Ｂの開口に押しつけた状態
で着氷を行うので、試験片Ａと保持具Ｂとの間に間隙が
生ずることはない。また計測時には上記シリンダ族ＲＣ
は試験片Ａよりリリースされるので、試験片Ａは開口に
面した部分の着氷面だけで保持されている。In this example, as described above, icing is performed with the test piece A pressed against the opening of the holder B by the test piece holding cylinder device C, so there is no gap between the test piece A and the holder B. will not occur. Also, during measurement, the cylinder group RC
is released from the test piece A, so the test piece A is held only by the icing surface facing the opening.
従って、着氷力計測のデータには、余分な着氷面や摩擦
面による力が含まれてはいないので、着氷力を正確に測
定することができる。Therefore, the data of the icing force measurement does not include the force due to the extra icing surface or friction surface, so that the icing force can be measured accurately.
本発明は、上記のように試験片を保持用シリンダ装置で
保持しているので着氷中試験片と試験片保持具の開口と
の間に間隙が生じることがない。In the present invention, since the test piece is held by the holding cylinder device as described above, there is no gap between the test piece and the opening of the test piece holder during icing.
また、着氷力計測時には保持用シリンダ装置をリリース
するので、試験片は開口に面した着氷面だけで保持され
ている。従って、測定データには、余分な着氷面や摩擦
面による力が含まれないので着氷力を正確に測定するこ
とができる。Furthermore, since the holding cylinder device is released when measuring the icing force, the test piece is held only by the icing surface facing the opening. Therefore, the measurement data does not include forces due to extra icing surfaces or friction surfaces, so that the icing force can be measured accurately.
なお、上記の実施例としては、シリンダ装置としてエア
を用いる場合を示したが、他の流体を用いることができ
ることはいう迄もない。In addition, although the above-mentioned embodiment shows the case where air is used as the cylinder device, it goes without saying that other fluids can be used.
また、本発明は、着氷風洞以外の着氷装置にも用いるこ
とができる。Further, the present invention can be used in icing devices other than icing wind tunnels.
第１図は本発明の一実施例を着氷風洞に用いる場合を示
す説明図、
第２図は本発明の一実施例の概略図、
第３図は第１図に示される実施例における試験片保持具
の斜視図、
第４図は第１図に示される実施例における試験片の正面
図、
ｇｇ５図ないし第７図はそれぞれ第一、第二及び第三の
従来の装置を示す説明図である。
図面中
Ａは試験片
Ｂは試験片保持具
Ｃは試験片保持用エアシリンダ装置
りはロッド
Ｅは着氷力計測用ロード・セル
Ｆは試験片負荷用エア・シリンダ装置
Ｇは第一の３ボ一ト２位置切換弁
Ｈは第二の３ボ一ト２位置切換弁
工はスピード・コントロール・バルブ
Ｎは開口
をそれぞれ示す。Fig. 1 is an explanatory diagram showing a case where an embodiment of the present invention is used in an icing wind tunnel, Fig. 2 is a schematic diagram of an embodiment of the present invention, and Fig. 3 is a test on the embodiment shown in Fig. 1. FIG. 4 is a front view of the test specimen in the embodiment shown in FIG. 1; FIGS. 5 to 7 are explanatory views showing the first, second, and third conventional devices, respectively. It is. In the drawing, A is the test piece B is the test piece holder C is the air cylinder device for holding the test piece, rod E is the load cell for measuring icing force, F is the air cylinder device for loading the test piece, G is the first 3 The one-bottom two-position switching valve H, the second three-bottom two-position switching valve, and the speed control valve N indicate the opening, respectively.
Claims (1)
に押しつける保持用シリンダ装置、上記試験片の表面の
上記開口に面する部分に形成された着氷面にせん断力を
加える試験片負荷用シリンダ装置、上記両シリンダ装置
に圧力流体を給排するセレクタ部及び上記試験片負荷用
シリンダ装置に設けられた着氷力計測部からなることを
特徴とする着氷力測定装置。A test piece, a test piece holder having an opening, a holding cylinder device that presses the test piece against the opening, and a test piece load that applies shear force to the icing surface formed on the surface of the test piece facing the opening. An icing force measuring device comprising: a cylinder device for test specimen loading, a selector portion for supplying and discharging pressure fluid to and from both cylinder devices, and an icing force measuring device provided in the test piece loading cylinder device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62003393A JPS63173799A (en) | 1987-01-12 | 1987-01-12 | Ice-coating force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62003393A JPS63173799A (en) | 1987-01-12 | 1987-01-12 | Ice-coating force measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63173799A true JPS63173799A (en) | 1988-07-18 |
Family
ID=11556114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62003393A Pending JPS63173799A (en) | 1987-01-12 | 1987-01-12 | Ice-coating force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63173799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234989A (en) * | 2009-03-31 | 2010-10-21 | Ikutoku Gakuen Kanagawa Koka Daigaku | Blade structure having anti-icing structure |
-
1987
- 1987-01-12 JP JP62003393A patent/JPS63173799A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234989A (en) * | 2009-03-31 | 2010-10-21 | Ikutoku Gakuen Kanagawa Koka Daigaku | Blade structure having anti-icing structure |
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