CN110823504A - Nonmetal wind tunnel test model control surface angle gauge and angle measuring method - Google Patents
Nonmetal wind tunnel test model control surface angle gauge and angle measuring method Download PDFInfo
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- CN110823504A CN110823504A CN201911220218.7A CN201911220218A CN110823504A CN 110823504 A CN110823504 A CN 110823504A CN 201911220218 A CN201911220218 A CN 201911220218A CN 110823504 A CN110823504 A CN 110823504A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
- G01B3/563—Protractors
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention relates to the field of wind tunnel test angle measurement, aims to solve the problem of inconvenience in measurement of the angle of a control surface of a wind tunnel test model in the prior art, and provides a nonmetal wind tunnel test model control surface angle gauge and an angle measurement method. The nonmetal wind tunnel test model control surface angle ruler comprises a base and a scale plate. The base is used for being connected with a base surface which is used as a deflection basis of the control surface; the scale plate is of a flat plate structure, and the plate surface of the scale plate is vertical to the deflection axis of the control surface; the scale plate comprises a seat part used for being connected with the base, a beam part formed by extending from the seat part to the direction close to the control surface, and a vertical part formed by extending downwards from the outer end of the beam part; the inner edges of the vertical part and the cross beam part limit the moving space of the control surface; the inner edge of the vertical part is in a circular arc shape taking the deflection axis as the center; the inner edge of the vertical part is provided with angle scales for indicating the deflection angle of the control surface. The invention has the advantages of simple structure and convenient and accurate measurement.
Description
Technical Field
The invention relates to the field of wind tunnel test angle measurement, in particular to a nonmetal wind tunnel test model control surface angle gauge and an angle measurement method.
Background
Dynamic tests such as tail spin tests, free flight tests, virtual flight tests, rotary balance tests and the like are carried out in wind tunnels, and skins of used test models are mainly made of non-metals such as carbon fibers, glass fibers and the like. In the process of a model test, part of a control surface needs to be remotely deflected according to a program, such as an aileron, an elevator, a rudder and the like, and part of the control surface needs to be deflected by an angle sheet fixed, such as a slat, a flap, a speed reduction plate and the like, and the actual deflection angle of the control surface needs to be measured and calibrated before the test starts.
When the deflection angle of the real control surface is measured, the scale plane of the measuring tool usually has a spatial three-dimensional angle, and the zero-angle position is different according to the initial installation angle of the control surface. At present, no finished product general measuring tool can meet the use working conditions.
Disclosure of Invention
The invention aims to provide a non-metal wind tunnel test model control surface angle ruler to solve the technical problem.
The embodiment of the invention is realized by the following steps:
the utility model provides a nonmetal wind tunnel test model control surface bevel protractor, it includes:
the base is used for being connected with a base surface which is used as a deflection basis of the control surface; and
the scale plate is of a flat plate structure, and the plate surface of the scale plate is vertical to the deflection axis of the control surface; the scale plate comprises a seat part used for being connected to the base, a beam part formed by extending from the seat part to the direction close to the control surface, and a vertical part formed by extending downwards from the outer end of the beam part; the inner edges of the vertical part and the cross beam part limit the activity space of the control surface;
the inner edge of the vertical part is in a circular arc shape taking the deflection axis as the center; and the inner edge of the vertical part is provided with angle scales for indicating the deflection angle of the control surface.
When the nonmetal wind tunnel test model control surface angle gauge in the scheme is used, the base is fixed on the base surface, the deflection axes of the scale plate and the control surface are kept perpendicular, then the angle value on the scale plate pointed by the control surface can be used as the value of the deflection angle of the control surface, and the nonmetal wind tunnel test model control surface angle gauge has the beneficial effects of simple structure and convenience and accuracy in measurement.
In one embodiment:
the base comprises a base plate and two vertical plates which are connected to the base plate at intervals, wherein opposite side surfaces of the two vertical plates are parallel to each other and are perpendicular to a deflection axis of the control surface;
the scale plate is connected between the two vertical plates in a matching way by the seat part.
In one embodiment:
the lower surface of the base is provided with three non-collinear pins for inserting into mounting holes on the foundation surface of the test model.
In one embodiment:
the base is adhered to the base surface of the test model through the lower surface of the base.
In one embodiment:
the lower surface of the base is matched with the base surface of the test model.
In one embodiment:
the zero degree scale lines of the scale plate correspond to the control surface at the initial position;
scales are distributed on two sides of the zero-degree scale mark, and the scale range at least comprises the deflection angle range of the control surface.
In one embodiment:
the control surface refers to a control surface of an aileron, an elevator, a rudder, a flap or a slat of the test model for controlling the posture of the test model in a wind tunnel test;
the corresponding base surface refers to the corresponding surface of the relatively fixed wing, vertical tail or horizontal tail of the test model corresponding to the control surface.
The invention also provides a method for measuring the angle of the control surface of the non-metal wind tunnel test model, which is based on the non-metal wind tunnel test model control surface angle ruler;
the lower surface of the base is fixed on the base surface of the test model, the plate surface of a scale plate fixedly connected to the base is perpendicular to the deflection axis of the control surface, and the control surface is positioned in a movable space defined by the inner edge of the vertical part and the inner edge of the beam part and corresponds to angle scales; the scale value pointed by the control surface is the deflection angle of the control surface.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings referred to in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
FIG. 1 shows a three-dimensional view of a non-metallic wind tunnel test model control surface angle gauge for measuring a control surface angle in an embodiment of the invention;
FIG. 2 is a view taken along line A of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a view from the direction A of FIG. 1 (partially hidden and partially shown in section);
FIG. 5 shows a view of the mating structure of the base and the stationary portion;
fig. 6 is a view shown in partial section in fig. 5.
Icon: 11-a stationary part; 12-the yaw axis; 13-a rotating part; 14-a base; 15-a scale plate; 16-a base surface; 17-a base plate; 18-a riser; 19-stitch; 20-mounting holes; 21-a seat; 22-a beam section; 23-a vertical portion; 24-inner edge of vertical portion; 25-an inner edge of the beam section; 26-activity space; 27-angle scale; 28-zero degree scale line; 30-rudder surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Fig. 1 shows a partial structure of a non-metal wind tunnel test model and a non-metal wind tunnel test model control surface angle ruler for measuring a control surface angle, which comprises a fixed part 11 and a rotating part 13 which can rotate around the fixed part 11 along a deflection axis 12. For example, the fixed part 11 may be an aileron and the corresponding movable part a flap. Since the reference surface of the fixed part 11 is generally a complex curved surface, the positioning is difficult, so that the existing measuring method is difficult to position, and the measurement is greatly influenced by the level of personnel and the number of operations. The present application solves this problem well.
Referring to fig. 1, with reference to fig. 2, fig. 3 and fig. 4, the present embodiment provides a non-metal wind tunnel test model control surface angle ruler, which includes a base 14 and a scale plate 15.
Referring to fig. 5 and 6 in combination, the base 14 in this embodiment is adapted to be attached to a base surface 16, such as the upper surface of the stationary portion 11, which serves as a basis for the deflection of the control surface 30. In one embodiment, the base 14 comprises a base plate 17 and two risers 18 connected at a distance to the base plate 17, the opposite sides of the two risers 18 being parallel to each other and perpendicular to the deflection axis 12 of the control surface 30 for mounting the positioning scale 15. The lower surface of the base 14 is provided with three non-collinear pins 19 for insertion into mounting holes 20 in the base surface 16 of the test model to effect attachment and positioning of the base 14 and base surface 16. In other embodiments, the lower surface of the base 14 fits the underlying surface 16 of the test model. The base 14 may also be bonded or otherwise attached by its lower surface to the underlying surface 16 of the test model.
Referring to fig. 1 or 4, the scale plate 15 in the present embodiment is a flat plate structure, and the plate surface of the scale plate 15 is perpendicular to the deflection axis 12 of the control surface 30; the scale plate 15 comprises a seat 21 for connecting to the base 14, a beam part 22 formed by extending from the seat 21 to a direction close to the control surface 30, and a vertical part 23 formed by extending downwards from the outer end of the beam part 22; the inner edges of the vertical portion 23 and the cross beam portion 22 define a movement space 26 of the control surface 30; the inner edge of the vertical portion 23 is in the shape of a circular arc centered on the deflection axis 12; an angle scale 27 is arranged at the inner edge of the vertical part 23 and is used for indicating the deflection angle of the control surface 30.
When the nonmetal wind tunnel test model control surface angle ruler in the scheme is used, the base 14 is fixed on the base surface 16, the scale plate 15 is kept perpendicular to the deflection axis 12 of the control surface 30, then the value of the deflection angle of the control surface 30 can be used as the value of the deflection angle of the control surface 15 pointed by the control surface 30, and the nonmetal wind tunnel test model control surface angle ruler has the advantages of being simple in structure and convenient and accurate in measurement.
Optionally, the zero degree scale line 28 of the scale plate 15 corresponds to the control surface 30 in the initial position; scales are distributed on two sides of the zero degree scale mark 28, and the scale range at least comprises the deflection angle range of the control surface 30.
The control surface 30 in this embodiment may refer to an aileron, an elevator, a rudder, a flap, or a slat of the test model, which is used to control the attitude of the test model in the wind tunnel test; the corresponding base surface 16 refers to the corresponding surface of the relatively fixed airfoil, vertical tail or horizontal tail of the test model to which the control surface corresponds.
The invention also provides a method for measuring the angle of the control surface of the non-metal wind tunnel test model, which is based on the non-metal wind tunnel test model control surface angle ruler;
the lower surface of the base 14 is fixed on a base surface 16 of a test model, the plate surface of a scale plate 15 fixedly connected to the base 14 is perpendicular to the deflection axis 12 of the control surface 30, and the control surface 30 is positioned in a movable space 26 defined by the inner edge of the vertical part 23 and the inner edge of the cross beam part 22 and corresponds to an angle scale 27; the scale value of the direction of the control surface 30 is the deflection angle of the control surface 30.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a nonmetal wind tunnel test model control surface bevel protractor which characterized in that includes:
the base is used for being connected with a base surface which is used as a deflection basis of the control surface; and
the scale plate is of a flat plate structure, and the plate surface of the scale plate is vertical to the deflection axis of the control surface; the scale plate comprises a seat part used for being connected to the base, a beam part formed by extending from the seat part to the direction close to the control surface, and a vertical part formed by extending downwards from the outer end of the beam part; the inner edges of the vertical part and the cross beam part limit the activity space of the control surface;
the inner edge of the vertical part is in a circular arc shape taking the deflection axis as the center; and the inner edge of the vertical part is provided with angle scales for indicating the deflection angle of the control surface.
2. The non-metallic wind tunnel test model control surface angle ruler of claim 1, characterized in that:
the base comprises a base plate and two vertical plates which are connected to the base plate at intervals, wherein opposite side surfaces of the two vertical plates are parallel to each other and are perpendicular to a deflection axis of the control surface;
the scale plate is connected between the two vertical plates in a matching way by the seat part.
3. The nonmetal wind tunnel test model control surface angle ruler of claim 2, which is characterized in that:
the lower surface of the base is provided with three non-collinear pins for inserting into mounting holes on the foundation surface of the test model.
4. The non-metallic wind tunnel test model control surface angle ruler of claim 1, characterized in that:
the base is adhered to the base surface of the test model through the lower surface of the base.
5. The non-metallic wind tunnel test model control surface angle ruler of claim 1, characterized in that:
the lower surface of the base is matched with the base surface of the test model.
6. The non-metallic wind tunnel test model control surface angle ruler of claim 1, characterized in that:
the zero degree scale lines of the scale plate correspond to the control surface at the initial position;
scales are distributed on two sides of the zero-degree scale mark, and the scale range at least comprises the deflection angle range of the control surface.
7. The non-metallic wind tunnel test model control surface angle ruler of claim 1, characterized in that:
the control surface refers to a control surface of an aileron, an elevator, a rudder, a flap or a slat of the test model for controlling the posture of the test model in a wind tunnel test;
the corresponding base surface refers to the corresponding surface of the relatively fixed wing, vertical tail or horizontal tail of the test model corresponding to the control surface.
8. A nonmetal wind tunnel test model control surface angle measuring method is characterized in that the method is based on the nonmetal wind tunnel test model control surface angle ruler of any one of claims 1-7;
the lower surface of the base is fixed on the base surface of the test model, the plate surface of a scale plate fixedly connected to the base is perpendicular to the deflection axis of the control surface, and the control surface is positioned in a movable space defined by the inner edge of the vertical part and the inner edge of the beam part and corresponds to angle scales; the scale value pointed by the control surface is the deflection angle of the control surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220218.7A CN110823504B (en) | 2019-12-03 | 2019-12-03 | Nonmetal wind tunnel test model control surface angle gauge and angle measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911220218.7A CN110823504B (en) | 2019-12-03 | 2019-12-03 | Nonmetal wind tunnel test model control surface angle gauge and angle measuring method |
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| CN110823504A true CN110823504A (en) | 2020-02-21 |
| CN110823504B CN110823504B (en) | 2021-05-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112926138A (en) * | 2021-03-23 | 2021-06-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Modeling method of control surface angle sheet applied to wind tunnel test model |
| CN113739750A (en) * | 2021-08-25 | 2021-12-03 | 成都信息工程大学 | Airplane control surface measuring device and measuring method |
| CN113865546A (en) * | 2021-10-29 | 2021-12-31 | 上海机电工程研究所 | Folding rudder angle measuring device and folding rudder |
| CN114001917A (en) * | 2021-11-02 | 2022-02-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Method for assembling and disassembling control surface angle sheet |
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Cited By (5)
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| CN112926138A (en) * | 2021-03-23 | 2021-06-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Modeling method of control surface angle sheet applied to wind tunnel test model |
| CN112926138B (en) * | 2021-03-23 | 2022-08-26 | 中国空气动力研究与发展中心低速空气动力研究所 | Modeling method of control surface angle sheet applied to wind tunnel test model |
| CN113739750A (en) * | 2021-08-25 | 2021-12-03 | 成都信息工程大学 | Airplane control surface measuring device and measuring method |
| CN113865546A (en) * | 2021-10-29 | 2021-12-31 | 上海机电工程研究所 | Folding rudder angle measuring device and folding rudder |
| CN114001917A (en) * | 2021-11-02 | 2022-02-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Method for assembling and disassembling control surface angle sheet |
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Granted publication date: 20210504 Termination date: 20211203 |