JPH08184527A - Calibration system for wind tunnel balance - Google Patents
Calibration system for wind tunnel balanceInfo
- Publication number
- JPH08184527A JPH08184527A JP32910294A JP32910294A JPH08184527A JP H08184527 A JPH08184527 A JP H08184527A JP 32910294 A JP32910294 A JP 32910294A JP 32910294 A JP32910294 A JP 32910294A JP H08184527 A JPH08184527 A JP H08184527A
- Authority
- JP
- Japan
- Prior art keywords
- displacement
- wind tunnel
- carry body
- tunnel balance
- sting
- 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.)
- Granted
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、航空機モデルの風洞実
験に使用される風洞天秤の較正装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a calibration device for a wind tunnel balance used in wind tunnel experiments of aircraft models.
【０００２】[0002]
【従来の技術】風洞天秤は、航空機モデルの重心付近に
設置され、航空機モデルに働く力やモーメントを測定す
るものである。従来、この種の風洞天秤の較正は、分銅
を較正装置本体から吊るして所定の力やモーメントを較
正装置本体に与え、そのときの風洞天秤からの出力を計
測して行なわれる。2. Description of the Related Art A wind tunnel balance is installed near the center of gravity of an aircraft model and measures the force or moment acting on the aircraft model. Conventionally, this kind of wind tunnel balance is calibrated by suspending a weight from the calibration device main body, applying a predetermined force or moment to the calibration device main body, and measuring the output from the wind tunnel balance at that time.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の較正方法では、分銅により較正装置本体に力や
モーメントを与えたとき、風洞天秤と較正装置本体との
相対位置関係がずれてしまう。そのため、風洞天秤と航
空機モデルとの位置関係を所定値に保持しつつ航空機モ
デルに力やモーメントを与える実験を想定すると、較正
条件が実験の場合と異なり、精度の高い較正ができない
おそれがある。However, in the above-described conventional calibration method, when a force or moment is applied to the calibration device main body by the weight, the relative positional relationship between the wind tunnel balance and the calibration device main body shifts. Therefore, assuming an experiment in which a force or a moment is applied to the aircraft model while maintaining the positional relationship between the wind tunnel balance and the aircraft model at a predetermined value, the calibration condition may be different from the case of the experiment, and highly accurate calibration may not be possible.
【０００４】本発明の目的は、キャリボディを介して較
正のための力を風洞天秤に与えたときのキャリボディの
変位を検出し、風洞天秤の一端が接続されたステイング
取り付けフレームとキャリボディとの相対位置を所定範
囲内に保持しながら較正することができる風洞天秤の較
正装置を提供することにある。An object of the present invention is to detect the displacement of a carry body when a force for calibration is applied to the wind tunnel balance via the carry body, and to provide a stay mounting frame and a carry body to which one end of the wind tunnel balance is connected. An object of the present invention is to provide a calibration device for a wind tunnel balance capable of performing calibration while maintaining the relative position of the above in a predetermined range.
【０００５】[0005]
【課題を解決するための手段】本発明に係る風洞天秤の
較正装置は、風洞天秤の一端がスティングを介して接続
されたスティング取付けフレームと、風洞天秤の他端を
内挿するキャリボディと、このキャリボディにＸ，Ｙ，
Ｚ軸方向の力とこれら各軸回りのモーメントＭｘ，Ｍ
ｙ，Ｍｚを与える負荷機構と、前記キャリボディの変位
を検出する変位検出手段と、前記キャリボディと相対的
に前記スティング取付けフレームをＸ，Ｙ，Ｚ軸方向に
移動するとともに前記各軸回りに回転する復元機構と、
前記負荷機構で前記キャリボディを駆動するとき、前記
変位検出手段の出力に基づいて、前記キャリボディに対
する前記スティング取付けフレームのＸ，Ｙ，Ｚ軸方向
の変位量とこれら各軸回りの変位角が所定範囲内に収る
ように前記復元機構を制御する制御手段とを具備するこ
とにより、上記目的を達成する。A wind tunnel balance calibrating apparatus according to the present invention comprises a sting mounting frame having one end of the wind tunnel balance connected via a sting, and a carry body into which the other end of the wind tunnel balance is inserted. X, Y,
Forces in the Z-axis direction and moments Mx, M about these axes
y, Mz load mechanism, displacement detecting means for detecting the displacement of the carry body, the Sting mounting frame is moved in the X, Y, Z axis directions relative to the carry body, and around each of the axes. A rotating restoration mechanism,
When the carry body is driven by the load mechanism, based on the output of the displacement detecting means, the displacement amount in the X, Y, and Z axis directions of the Sting mounting frame with respect to the carry body and the displacement angle around each of these axes are calculated. The above-mentioned object is achieved by including a control means for controlling the restoring mechanism so that the restoring mechanism falls within a predetermined range.
【０００６】[0006]
【作用】負荷機構は、風洞天秤の他端が内挿されている
キャリボディにＸ，Ｙ，Ｚ軸方向の力とこれら各軸回り
のモーメントＭｘ，Ｍｙ，Ｍｚを与える。これにより、
風洞天秤には較正のための力やモーメントが与えられ
る。このとき、変位検出手段はキャリボディの変位を検
出する。制御手段は、この変位検出手段の出力に基づい
て、キャリボディに対するスティング取付けフレームの
Ｘ，Ｙ，Ｚ軸方向の変位量とこれら各軸回りの変位角が
所定範囲内に収るように復元機構を制御する。The load mechanism applies forces in the X, Y and Z axis directions and moments Mx, My and Mz about these axes to the carry body in which the other end of the wind tunnel balance is inserted. This allows
The wind tunnel balance is given a force and moment for calibration. At this time, the displacement detecting means detects the displacement of the carry body. Based on the output of the displacement detection means, the control means restores the displacement amount of the sting mounting frame with respect to the carry body in the X, Y and Z axis directions and the displacement angle around each of these axes within a predetermined range. To control.
【０００７】[0007]
【実施例】図１〜図１０により本発明の一実施例を説明
する。まず本明細書では、図８に示すように、航空機モ
デル１００に働く力とモーメントを定義する。したがっ
て、図１において、右方向がＸ正方向Ｆｘ（＋）、左方
向がＸ負方向Ｆｘ（−）、下方向がＹ正方向Ｆｙ
（＋）、上方向がＹ負方向Ｆｙ（−）である。また、図
２において、下方向がＺ正方向Ｆｚ（＋）、上方向がＺ
負方向Ｆｚ（−）、左方向がＹ正方向Ｆｙ（＋）、右方
向がＹ負方向Ｆｙ（−）である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. First, in this specification, as shown in FIG. 8, forces and moments acting on the aircraft model 100 are defined. Therefore, in FIG. 1, the right direction is the X positive direction Fx (+), the left direction is the X negative direction Fx (−), and the downward direction is the Y positive direction Fy.
(+), The upward direction is the Y negative direction Fy (-). In FIG. 2, the downward direction is the Z positive direction Fz (+), and the upward direction is the Z direction.
The negative direction is Fz (−), the left direction is the Y positive direction Fy (+), and the right direction is the Y negative direction Fy (−).
【０００８】図１および図２において、２１はスティン
グ取付けフレーム、２２はキャリボディ、２３はスティ
ング、２３Ａは風洞天秤である。スティング２３は円筒
状連結部２３ａでスティング取付けフレーム２１に一端
が固定され、その他端に風洞天秤２３Ａの一端が固定さ
れている。風洞天秤２３Ａの他端はキャリボディ２２の
中に内挿される。キャリボディ２２に内挿された風洞天
秤２３Ａの他端はキャリボディ２２に固定されているた
め、キャリボディ２２の姿勢に応じて風洞天秤２３Ａの
検出部はキャリボディ２２と相対的に変位し、キャリボ
ディ２２に作用する力やモーメントに応じた検出信号を
出力し、これにより、キャリボディ２２に作用するＸ，
Ｙ，Ｚ軸方向の力と各軸回りのモーメントを検出するこ
とができる。1 and 2, 21 is a sting mounting frame, 22 is a carry body, 23 is a sting, and 23A is a wind tunnel balance. One end of the sting 23 is fixed to the sting mounting frame 21 by a cylindrical connecting portion 23a, and one end of the wind tunnel balance 23A is fixed to the other end. The other end of the wind tunnel balance 23A is inserted into the carry body 22. Since the other end of the wind tunnel balance 23A inserted in the carry body 22 is fixed to the carry body 22, the detecting portion of the wind tunnel balance 23A is displaced relative to the carry body 22 according to the posture of the carry body 22, A detection signal corresponding to the force or moment acting on the calibody 22 is output, whereby X, which acts on the calibody 22,
It is possible to detect the forces in the Y and Z axis directions and the moments around each axis.
【０００９】スティング取付けフレーム２１は、基台２
４に立設されたＺ方向復元ジャッキ３１ａ，３１ｂ，３
１ｃでＺ方向の位置を調節可能に姿勢制御され、基台２
４に設置されたＸ方向復元ジャッキ３２でＸ方向の位置
を調節可能に姿勢制御され、基台２４に設置されたＹ方
向復元ジャッキ３３ａ，３３ｂでＹ方向の位置を調節可
能に姿勢制御される。各復元ジャッキは自在継手３４ａ
〜３４ｆを介してスティング取付けフレーム２１に連結
され、これにより、スティング取付けフレーム２１は
Ｘ，Ｙ，Ｚ軸方向に変位し、かつ、各軸回りに変位する
ことができる。The sting mounting frame 21 is a base 2
Z-direction restoring jacks 31a, 31b, 3 which are erected at 4
The position of the base 2 is controlled by 1c so that the position in the Z direction can be adjusted.
The position control in the X direction is adjustable by the X direction restoration jack 32 installed on the No. 4 position, and the position control in the Y direction is adjustable by the Y direction restoration jacks 33a and 33b installed on the base 24. . Each restoration jack has a universal joint 34a
The sting attachment frame 21 can be displaced in the X-, Y-, and Z-axis directions and can be displaced around each axis by being connected to the Sting attachment frame 21 through ~ 34f.
【００１０】なお、図２では、復元ジャッキ３１ａの図
示を省略している。また、自在継手３４ａは図１および
図２のいずれからも図示を省略している。In FIG. 2, the restoration jack 31a is not shown. Further, the universal joint 34a is not shown in FIGS. 1 and 2.
【００１１】図３にも示されるように、キャリボディ２
２はピアノ線３５および連結ロッド３６で負荷ジャッキ
１〜１６に連結されて種々の荷重を発生する。負荷ジャ
ッキ１，２はＺ負方向にキャリボディ２２を負荷し、負
荷ジャッキ３，４はＺ正方向にキャリボディ２２を負荷
する。負荷ジャッキ５，６はＸ正方向にキャリボディ２
２を負荷し、負荷ジャッキ７，８はＸ負方向にキャリボ
ディ２２を負荷する。負荷ジャッキ９，１０はＹ正方向
にキャリボディ２２を負荷し、負荷ジャッキ１１，１２
はＹ負方向にキャリボディ２２を負荷する。図４に示す
ように負荷ジャッキ１〜１６を選択的に動作させること
で、キャリボディ２２を介して風洞天秤２３ＡにＸ，
Ｙ，Ｚ軸方向の力と各軸回りのモーメントを与えること
ができる。また、図２において、符号５８ａ〜５８ｆは
連結ロッド３６の軸力を測定するロードセルであり、さ
らに、図示はしていないが、ピアノ線３５の軸力もロー
ドセル（図９に符号５９ａ〜５９ｈで示す）で検出され
て、後述する制御回路６１に入力される。As shown in FIG. 3, the carry body 2
A piano wire 35 and a connecting rod 36 are connected to the load jacks 1 to 16 to generate various loads. The load jacks 1 and 2 load the carry body 22 in the negative Z direction, and the load jacks 3 and 4 load the carry body 22 in the positive Z direction. The load jacks 5 and 6 are the carry body 2 in the positive X direction.
2, the load jacks 7 and 8 load the carry body 22 in the negative X direction. The load jacks 9 and 10 load the carry body 22 in the positive Y direction to load the load jacks 11 and 12.
Loads the carriage body 22 in the negative Y direction. As shown in FIG. 4, by selectively operating the load jacks 1 to 16, the wind tunnel balance 23A is connected to the X,
A force in the Y and Z axis directions and a moment around each axis can be applied. Further, in FIG. 2, reference numerals 58a to 58f are load cells for measuring the axial force of the connecting rod 36, and although not shown, the axial force of the piano wire 35 is also indicated by the load cells (reference numerals 59a to 59h in FIG. 9). ) And input to the control circuit 61 described later.
【００１２】図１および図２において水平方向に延在す
る負荷ジャッキに一端が連結されたピアノ線３５は取り
付けフレーム２１にあけられた円形孔３７を通ってキャ
リボディ２２にそれぞれ連結され、キャリボディ２２の
姿勢が変ってもいずれのピアノ線３５が取り付けフレー
ム２１に接触しないようにされている。In FIGS. 1 and 2, the piano wire 35, one end of which is connected to a load jack extending in the horizontal direction, is connected to the carry body 22 through circular holes 37 formed in the mounting frame 21, respectively. Even if the posture of 22 changes, none of the piano wires 35 comes into contact with the mounting frame 21.
【００１３】図１および図２において、４１は、下部基
台２４と上部架台２５とを連結する支柱であり、図５お
よび図６に示すように、この支柱４１には変位センサ取
り付け枠４２が取り付けられている。この取り付け枠４
２には、変位センサ取り付け軸４３が上下調節ナット４
４により位置決め固定され、この軸４３の先端（図５お
よび図６では下端）にはキャリボディ２２の種々の変位
を測定する変位測定装置５１が設けられている。キャリ
ボディ２２の上面に固定されたターゲット取り付けアー
ム５２には、その上面にターゲット板５３が接続され、
図７に模式的に示すように、変位測定装置５１のそれぞ
れの変位センサ５１ａ〜５１ｆのそれぞれの先端がター
ゲット板５３と係合し、変位センサ５１ａ〜５１ｆのそ
れぞれはキャリボディ２２のＸ方向変位，Ｙ方向変位，
Ｚ方向変位に応じた変位信号を出力する。In FIG. 1 and FIG. 2, reference numeral 41 is a support for connecting the lower base 24 and the upper mount 25. As shown in FIGS. 5 and 6, a displacement sensor mounting frame 42 is attached to the support 41. It is installed. This mounting frame 4
2, the displacement sensor mounting shaft 43 has a vertical adjustment nut 4
A displacement measuring device 51 for measuring various displacements of the carry body 22 is provided at the tip (lower end in FIGS. 5 and 6) of the shaft 43. A target plate 53 is connected to the upper surface of the target mounting arm 52 fixed to the upper surface of the carry body 22,
As schematically shown in FIG. 7, the respective tip ends of the respective displacement sensors 51 a to 51 f of the displacement measuring device 51 engage with the target plate 53, and the respective displacement sensors 51 a to 51 f displace the carry body 22 in the X direction. , Y direction displacement,
A displacement signal corresponding to the Z-direction displacement is output.
【００１４】図９は風洞天秤較正装置のブロック図を示
し、マイクロコンピュータなどからなる制御回路６１に
は操作部６２から較正信号が入力される。較正信号はキ
ャリボディ２２を介して風洞天秤２３Ａに与えるＸ，
Ｙ，Ｚ軸方向の力と各軸回りのモーメントを示すもの
で、たとえば、キーボードから入力することができる。
操作部６２はキーボードに限定されるわけではなく、ダ
イアル式など種々のものが使用できる。制御回路６１
は、入力される較正信号に応じて負荷ジャッキ１〜１６
を選択駆動し、所望の力あるいはモーメントをキャリボ
ディ２２に与える。制御回路６１には変位測定装置５１
を構成する変位センサ５１ａ〜５１ｆの変位信号が入力
され、この変位信号に応じて復元ジャッキを選択駆動し
て、キャリボディ２２と風洞天秤２３Ａの中心がほぼ一
致するように、また、両者の各軸回りの変位角がほぼゼ
ロとなるように風洞天秤取り付けフレーム２１の姿勢を
制御する。さらに、制御回路６１には、上述したロード
セル５８ａ〜５８ｆと図２では不図示のロードセル５８
ｇ，５８ｈで検出されるロッド３６の荷重信号と、風洞
天秤２３Ａからの検出信号と、上述した図２では不図示
のロードセル５９ａ〜５９ｈで検出されるロッド３５の
荷重信号も入力される。FIG. 9 is a block diagram of a wind tunnel balance calibrating device, in which a calibration signal is input from an operating section 62 to a control circuit 61 including a microcomputer. The calibration signal is given to the wind tunnel balance 23A via the carrier body X,
It indicates the forces in the Y and Z axis directions and the moments around the respective axes, and can be input from a keyboard, for example.
The operation unit 62 is not limited to the keyboard, and various types such as a dial type can be used. Control circuit 61
Load jacks 1 to 16 according to the input calibration signal.
Is selectively driven to apply a desired force or moment to the calibody 22. The control circuit 61 includes a displacement measuring device 51.
The displacement signals of the displacement sensors 51a to 51f constituting the above are input, and the restoration jack is selectively driven according to this displacement signal so that the centers of the carry body 22 and the wind tunnel balance 23A substantially coincide with each other, and The attitude of the wind tunnel balance mounting frame 21 is controlled so that the displacement angle around the axis becomes substantially zero. Further, the control circuit 61 includes load cells 58a to 58f described above and the load cell 58 not shown in FIG.
The load signal of the rod 36 detected by g and 58h, the detection signal from the wind tunnel balance 23A, and the load signal of the rod 35 detected by the load cells 59a to 59h (not shown in FIG. 2) are also input.
【００１５】このように構成された風洞天秤の較正装置
の動作を説明する。図１０は制御回路６１で実行される
プログラムの処理手順例であり、ステップＳ１で較正信
号を読み込み、ステップＳ２において、読み込まれた較
正信号に応じて負荷ジャッキを駆動する信号を出力す
る。これにより、キャリボディ２２には較正信号に応じ
た力やモーメントが働き、キャリボディ２２はそれに応
じた姿勢をとる。たとえば、Ｘ正方向にＦｘなる力をキ
ャリボディ２２に与える較正信号が入力されると、負荷
ジャッキ５，６はそれに連結されたロードセルからの荷
重信号がＦｘになるまでキャリボディ２２を駆動する。
他の軸方向の力や各軸回りのモーメントが較正信号で与
えられたときも、同様に各ロードセルからの荷重信号に
より各軸の力や各軸回りのモーメントが所望の値となる
まで負荷ジャッキを駆動する。そして、ステップＳ３で
変位信号を読み込み、ステップＳ４で変位信号から取り
付けフレーム２１の復元量を計算する。The operation of the thus-configured wind tunnel balance calibrating apparatus will be described. FIG. 10 is an example of a processing procedure of a program executed by the control circuit 61. In step S1, a calibration signal is read, and in step S2, a signal for driving the load jack is output according to the read calibration signal. As a result, a force or moment corresponding to the calibration signal acts on the carry body 22, and the carry body 22 takes a posture corresponding to the force or moment. For example, when a calibration signal that gives a force of Fx to the carry body 22 in the positive X direction is input, the load jacks 5 and 6 drive the carry body 22 until the load signal from the load cell connected thereto becomes Fx.
Even when other axial forces and moments around each axis are given by the calibration signal, the load signals from each load cell similarly cause the load jacks until the forces around each axis and the moment around each axis reach the desired values. To drive. Then, the displacement signal is read in step S3, and the restoration amount of the mounting frame 21 is calculated from the displacement signal in step S4.
【００１６】後述するように、この復元量は、Ｘ方向変
位量Ｘ、Ｙ方向変位量Ｙ、Ｚ方向変位量Ｚ、Ｘ軸に対す
る変位角φ、Ｙ軸に対する変位角θ、Ｚ軸に対する変位
角ψで表される。次いで、ステップＳ５において、計算
された復元量に基づいて復元ジャッキの駆動量を計算
し、復元ジャッキを徐々に変位させてステップＳ４で計
算された復元量だけ取り付けフレーム２１を移動する。
たとえば、変位信号から計算された変位量をｎ等分し、
１／ｎ変位量のランプ波を復元ジャッキにｎ回出力して
少しづつフレーム２１を復元するような制御をかけるの
が望ましい。As will be described later, the restoration amounts are X-direction displacement amount X, Y-direction displacement amount Y, Z-direction displacement amount Z, X-axis displacement angle φ, Y-axis displacement angle θ, and Z-axis displacement angle. It is represented by ψ. Next, in step S5, the drive amount of the restoration jack is calculated based on the calculated restoration amount, the restoration jack is gradually displaced, and the mounting frame 21 is moved by the restoration amount calculated in step S4.
For example, the displacement calculated from the displacement signal is divided into n equal parts,
It is desirable to output a ramp wave having a displacement of 1 / n to the restoration jack n times and restore the frame 21 little by little.
【００１７】風洞天秤の中心の座標をＰ（Ｘ，Ｙ，Ｚ)
とし、変位センサ５１ａ〜５１ｆの検出信号をｘａ，ｙ
ａ，ｙｂ，ｚａ，ｚｂ，ｚｃとし、測定開始時の検出信
号をそれぞれゼロとすると、風洞天秤の中心の座標Ｐ
（Ｘ，Ｙ，Ｚ）は、The coordinate of the center of the wind tunnel balance is P (X, Y, Z)
And the detection signals of the displacement sensors 51a to 51f are xa, y
If a, yb, za, zb, and zc and the detection signals at the start of measurement are zero, the coordinate P of the center of the wind tunnel balance is obtained.
(X, Y, Z) is
【数１】Ｘ方向変位量：Ｘ＝ｘａ Ｙ方向変位量：Ｙ＝（ｙａ＋ｙｂ）／２ Ｚ方向変位量：Ｚ＝（ｚａ＋ｚｂ＋ｚｃ）／３ で表すことができる。また、各軸に対する変位角は、## EQU1 ## X direction displacement amount: X = xa Y direction displacement amount: Y = (ya + yb) / 2 Z direction displacement amount: Z = (za + zb + zc) / 3 The displacement angle for each axis is
【数２】 Ｘ軸に対する変位角：φ＝tan-1｛（ｚｂ−ｚｃ）／Ｌ１｝ Ｙ軸に対する変位角：θ＝tan-1｛−（ｚａ＋ｚｂ＋ｚｃ）／２Ｌ２｝ Ｚ軸に対する変位角：ψ＝tan-1｛（ｙａ−ｙｂ）／Ｌ２｝ で表すことができる。なお、Ｌ１は図７に示すように、
変位ｙａを検出する変位センサ５１ｂと変位ｙｂを検出
する変位センサ５１ｃとの間隔、Ｌ２は同様に、変位ｚ
ｂを検出する変位センサ５１ｅと変位ｚｃを検出する変
位センサ５１ｆとの間隔である。## EQU00002 ## Displacement angle with respect to X axis: φ = tan -1 {(zb-zc) / L1} Displacement angle with respect to Y axis: θ = tan -1 {-(za + zb + zc) / 2L2} Displacement angle with respect to Z axis: ψ = Tan -1 {(ya-yb) / L2}. Note that L1 is, as shown in FIG.
The distance between the displacement sensor 51b that detects the displacement ya and the displacement sensor 51c that detects the displacement yb, L2 is the displacement z
The distance is between the displacement sensor 51e that detects b and the displacement sensor 51f that detects the displacement zc.
【００１８】最後に、ステップＳ６において風洞天秤２
３Ａからの出力を読み込み、ステップＳ１で与えた較正
信号に対応づけてその出力を記憶して較正を行なう。こ
のような制御により、較正作業中、Ｘ，Ｙ，Ｚ軸方向で
は風洞天秤２３Ａの中心がキャリボディ２２の中心とほ
ぼ一致し、Ｍｘ，Ｍｙ，Ｍｚモーメント方向では両者の
相対回転角度がほぼゼロとなる。したがって、実際の風
洞実験で航空機モデルに搭載したときと等価な条件で較
正を行なうことができ、信頼性の高い較正が可能とな
る。Finally, in step S6, the wind tunnel balance 2
The output from 3A is read, the output is stored in association with the calibration signal given in step S1, and calibration is performed. By such control, the center of the wind tunnel balance 23A substantially coincides with the center of the carry body 22 in the X, Y, and Z axis directions during the calibration work, and the relative rotation angles of the two are substantially zero in the Mx, My, and Mz moment directions. Becomes Therefore, it is possible to calibrate in a wind tunnel experiment under conditions equivalent to those when mounted on an aircraft model, and it is possible to perform highly reliable calibration.
【００１９】[0019]
【発明の効果】以上説明したように本発明によれば、風
洞天秤の他端を天秤中心が相対変位可能に内挿するキャ
リボディにＸ，Ｙ，Ｚ軸方向の力とこれら各軸回りのモ
ーメントＭｘ，Ｍｙ，Ｍｚを与えるとき、風洞天秤の一
端がスティングを介して固定されているスティング取り
付けフレームの変位を検出し、フレームとキャリボディ
との相対変位が所定範囲、好ましくはほぼゼロになるよ
うにフレームの位置を制御するようにしたので、風洞天
秤を実際の風洞実験で航空機モデルに搭載したときと等
価な較正を行なうことができ、信頼性の高い較正が可能
となる。As described above, according to the present invention, the forces in the X, Y, and Z axis directions and the force around each of these axes are applied to the carry body that inserts the other end of the wind tunnel balance so that the balance center can be relatively displaced. When the moments Mx, My, Mz are given, the displacement of the sting mounting frame in which one end of the wind tunnel balance is fixed via the sting is detected, and the relative displacement between the frame and the carry body falls within a predetermined range, preferably almost zero. Since the position of the frame is controlled as described above, it is possible to perform calibration equivalent to that when the wind tunnel balance is mounted on an aircraft model in an actual wind tunnel experiment, and highly reliable calibration is possible.
【図１】本発明に係る風洞天秤較正装置の平面図であ
る。FIG. 1 is a plan view of a wind tunnel balance calibrating device according to the present invention.
【図２】図１に示した風洞天秤較正装置のＩＩ方向から
見た側面図である。FIG. 2 is a side view of the wind tunnel balance calibrating apparatus shown in FIG. 1, viewed from the II direction.
【図３】図１に示した負荷ジャッキの配置を説明する斜
視図である。FIG. 3 is a perspective view for explaining the arrangement of the load jack shown in FIG.
【図４】負荷ジャッキの作動とそのときの負荷方向を示
す図である。FIG. 4 is a diagram showing an operation of a load jack and a load direction at that time.
【図５】図１の風洞天秤装置に付設される変位測定装置
を示す図で、図１のＶ方向から見た側面図である。5 is a view showing a displacement measuring device attached to the wind tunnel balance device of FIG. 1, and is a side view seen from a direction V of FIG.
【図６】図５の変位測定装置の側面図である。6 is a side view of the displacement measuring device of FIG.
【図７】図５および図６の変位測定装置を模式的に示す
斜視図である。7 is a perspective view schematically showing the displacement measuring device of FIGS. 5 and 6. FIG.
【図８】航空機モデルに作用する負荷を説明する図であ
る。FIG. 8 is a diagram illustrating a load acting on an aircraft model.
【図９】本発明に係る風洞天秤較正装置のブロック図で
ある。FIG. 9 is a block diagram of a wind tunnel balance calibrating apparatus according to the present invention.
【図１０】図９の制御回路で実行されるプログラムの処
理手順例を示すフローチャートである。10 is a flowchart showing an example of a processing procedure of a program executed by the control circuit of FIG.
１〜１６ 負荷ジャッキ ２１ スティング取付けフレーム ２２ キャリボディ ２３ スティング ２３Ａ 風洞天秤 ３１ａ〜３１ｃ Ｚ方向復元ジャッキ ３２ａ Ｘ方向復元ジャッキ ３３ａ，３３ｂ Ｙ方向復元ジャッキ ３４ａ〜３４ｆ 自在継手 ３５ ピアノ線 ３６ 連結ロッド ４２ 変位測定装置取り付け枠 ４３ 変位測定装置取り付け軸 ５１ 変位測定装置 ５１ａ〜５１ｆ 変位センサ ５２ ターゲット取り付けアーム ５３ ターゲット 1-16 load jack 21 sting mounting frame 22 carry body 23 sting 23A wind tunnel balance 31a to 31c Z direction restoring jack 32a X direction restoring jack 33a, 33b Y direction restoring jack 34a to 34f universal joint 35 piano wire 36 connecting rod 42 displacement measurement Device mounting frame 43 Displacement measuring device mounting shaft 51 Displacement measuring device 51a-51f Displacement sensor 52 Target mounting arm 53 Target
Claims (1)
続されたスティング取付けフレームと、前記風洞天秤の
他端を内挿するキャリボディと、キャリボディにＸ，
Ｙ，Ｚ軸方向の力とこれら各軸回りのモーメントＭｘ，
Ｍｙ，Ｍｚを与える負荷機構と、キャリボディの変位を
検出する変位検出手段と、前記キャリボディと相対的に
前記スティング取付けフレームをＸ，Ｙ，Ｚ軸方向に移
動するとともに前記各軸回りに回転する復元機構と、前
記負荷機構で前記キャリボディを駆動するとき、前記変
位検出手段の出力に基づいて、前記キャリボディに対す
る前記スティング取付けフレームのＸ，Ｙ，Ｚ軸方向の
変位量とこれら各軸回りの変位角が所定範囲内に収るよ
うに前記復元機構を制御する制御手段とを具備すること
を特徴とする風洞天秤の較正装置。1. A sting mounting frame in which one end of a wind tunnel balance is connected via a sting, a carry body into which the other end of the wind tunnel balance is inserted, and X,
Forces in the Y and Z axis directions and moments Mx about these axes,
A load mechanism for giving My and Mz, a displacement detecting means for detecting the displacement of the carry body, and the Sting mounting frame moving in the X, Y and Z axis directions relative to the carry body and rotating around the respective axes. When the carry body is driven by the restoring mechanism and the load mechanism, the amount of displacement of the sting mounting frame with respect to the carry body in the X, Y, and Z axis directions and these axes based on the output of the displacement detecting means. A calibration device for a wind tunnel balance, comprising: a control unit that controls the restoring mechanism so that a displacement angle around the device falls within a predetermined range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32910294A JP3298343B2 (en) | 1994-12-28 | 1994-12-28 | Calibration device for wind tunnel balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32910294A JP3298343B2 (en) | 1994-12-28 | 1994-12-28 | Calibration device for wind tunnel balance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08184527A true JPH08184527A (en) | 1996-07-16 |
| JP3298343B2 JP3298343B2 (en) | 2002-07-02 |
Family
ID=18217636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32910294A Expired - Fee Related JP3298343B2 (en) | 1994-12-28 | 1994-12-28 | Calibration device for wind tunnel balance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3298343B2 (en) |
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| CN103616157A (en) * | 2013-12-23 | 2014-03-05 | 中国航天空气动力技术研究院 | Wind-tunnel balance body shafting static correction system and wind-tunnel balance body shafting static correction method |
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|---|---|
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