KR101865180B1 - Distributed load and torsion load conversion device for uniform pressure acting on blade - Google Patents
Distributed load and torsion load conversion device for uniform pressure acting on blade Download PDFInfo
- Publication number
- KR101865180B1 KR101865180B1 KR1020170126902A KR20170126902A KR101865180B1 KR 101865180 B1 KR101865180 B1 KR 101865180B1 KR 1020170126902 A KR1020170126902 A KR 1020170126902A KR 20170126902 A KR20170126902 A KR 20170126902A KR 101865180 B1 KR101865180 B1 KR 101865180B1
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- South Korea
- Prior art keywords
- blade
- load
- frame
- pressure acting
- uniform pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The distributed load and torsional load transducer of uniform pressure acting on the blades of the present invention comprises a frame; A fixing member installed in the frame and fixed to the blade; And a clamp installed at two or more points of the blade and applying a load by being pulled by the wire.
Thereby, the clamp is configured to apply a load to two or more points of the blade, so that the distribution load and the twist can be applied so as to be similar to the actual use environment of the blade.
Description
More particularly, the present invention relates to a distribution load of a uniform pressure acting on a blade capable of applying a distribution load so as to be similar to an actual use environment of the blade, To a load transducer.
Generally, a blade used for wind power generation is used to obtain a rotation force necessary for rotating an electric motor for generating electric power. A blade used for a rotary wing aircraft is used for an aircraft such as a lift, a thrust and a steering force .
The rotation of the blade causes a change in the aerodynamic distribution around the blade, and this phenomenon acts on the blade itself as a bending load and a torsional load.
Aerodynamic load monitoring for safe operation of the blades and a device for measuring aerodynamic loads are needed to measure the aerodynamic distribution in the radial direction of the blades.
Also, resonance generators for generating aerodynamic loads have been developed in various forms.
For example, Korean Patent Laid-Open Publication No. 10-2011-0078999 includes a
However, since the
Therefore, it is required to develop a uniform distribution pressure distribution apparatus and a torsional load transducer which act on an improved type blade capable of applying a distribution load similar to an actual use environment of the blade.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional methods described above, and it is an object of the present invention to provide a method and apparatus for measuring a uniform pressure acting on a blade capable of applying a distributed load and a twist to two or more points on the blade, And to provide a torsional load transducer.
In order to achieve the above object, the present invention provides a distributed load and torsional load transducer for uniform pressure acting on a blade, comprising: a frame; A fixing member installed in the frame and fixed to the blade; And a clamp installed at two or more points of the blade and applying a load by being pulled by the wire.
In addition, the frame is provided with at least two first sheaves, the clamp includes a second sheave, and the first and second sheaves are connected by a single wire to exert a tensile force.
In addition, the frame may be provided with a guide rail configured to be movable along a long side of the frame, and the first sheave may be movable along the length direction of the guide rail.
In addition, the clamp is composed of five pieces, and a distribution load is applied to five points of the blade.
In addition, the fixing member is rotated by hinge coupling to the frame, a stopper formed with a guide groove is formed in the frame, and a guide protrusion corresponding to the guide groove is formed in the fixing member.
According to the distributed load and torsional load transducer of uniform pressure acting on the blades according to the present invention, the clamp can be configured to apply a load to two or more points of the blade so that the distributed load and torsion can be applied There is an effect.
1 is a perspective view showing the configuration of a calibrator attached to Korean Patent Laid-Open Publication No. 10-2011-0078999.
FIG. 2 is a perspective view showing a distribution load and a torsional load transducer of a uniform pressure acting on the blade according to the present invention. FIG.
Figure 3 is a side view of Figure 2;
4 is a front view of Fig.
5 is a use state diagram of Fig.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 is a perspective view showing a distribution load and a torsional load changing device of a uniform pressure acting on the blade according to the present invention, FIG. 3 is a side view of FIG. 2, FIG. 4 is a front view of FIG. 2, Fig.
As shown in Figs. 2 to 5, the distribution load and the torsional load converting device A of the uniform pressure acting on the blades according to the present invention are designed such that the blade (B) It is designed to be implemented in the experimental equipment, and the experiment which was measured by the conventional concentrated load is implemented so that it can be measured by the distribution load.
In particular, we have simplified the measurement of experimental data using a single wire when applying distributed loads.
Specifically, the uniform load distribution and torsional load transducer (A) acting on the blade of the present invention includes a frame (100), a fixing member (200) provided on the frame (100) And a
The
The
The
The
The
Thus, the
The
That is, the
The
Thereby, the blade forms an angle with the ground surface by the stopper guiding the displacement restriction of the blade and the movement of the fixing member.
Although the preferred embodiments of the present invention have been described in detail, the technical scope of the present invention is not limited to the above-described embodiments, but should be construed according to the claims. It will be understood by those skilled in the art that many modifications and variations are possible without departing from the scope of the present invention.
For example, although the blade has been described in the above description, the present invention is not limited thereto, and it is noted that the distribution load of various apparatuses can be measured.
A - Distributed load and torsional load transducers of uniform pressure acting on the blade
B - blade
100 - frame
200 - fixing member
300-wire
400 - Clamp
500 - 1st pulley
600 - 2nd pulley
700 - Guide rail
800 - Stopper
Claims (5)
A fixing member 200 installed on the frame 100 and to which the blade B is fixed; And
And a clamp (400) installed at two or more points of the blade (B) to apply a load by pulling the wire (300)
The frame 100 is provided with at least two first sheaves 500 and the clamp includes a second sheave 600 and the first and second sheaves 500 and 600 are formed by a single wire 300 Connected and tensioned,
The frame 100 is provided with a guide rail 700 configured to be movable along a long side of the frame 100. The first sheave 500 is movable along the longitudinal direction of the guide rail 700 Respectively,
The fixing member 200 is rotated by the hinge coupling to the frame 100,
A stopper 800 having a guide groove 810 is formed in the frame 100 and a guide protrusion 210 corresponding to the guide groove 810 is formed in the fixing member 200. [ Distributed load and torsional load transducer of uniform pressure acting.
Wherein the clamp (400) is constituted by five pieces and applies a distributed load to five points of the blade (B).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020170126902A KR101865180B1 (en) | 2017-09-29 | 2017-09-29 | Distributed load and torsion load conversion device for uniform pressure acting on blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020170126902A KR101865180B1 (en) | 2017-09-29 | 2017-09-29 | Distributed load and torsion load conversion device for uniform pressure acting on blade |
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KR101865180B1 true KR101865180B1 (en) | 2018-06-07 |
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KR1020170126902A KR101865180B1 (en) | 2017-09-29 | 2017-09-29 | Distributed load and torsion load conversion device for uniform pressure acting on blade |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115406645A (en) * | 2022-11-01 | 2022-11-29 | 安徽羲禾航空科技有限公司 | Propeller blade torsion testing device |
Citations (7)
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KR100250327B1 (en) * | 1996-12-30 | 2000-05-01 | 정몽규 | Transmission lever bending test jig |
KR20100079680A (en) * | 2008-12-31 | 2010-07-08 | 한국항공우주연구원 | Apparatus for testing helicopter rotor blade fatigue |
US20100263448A1 (en) * | 2007-12-14 | 2010-10-21 | Alliance For Sustainable Energy, Llc. | Dual- axis resonance testing of wind turbine blades |
KR20110032277A (en) * | 2009-09-22 | 2011-03-30 | 금원엔지니어링(주) | Load tester of a heavy weight carrier |
KR20110078999A (en) | 2009-12-31 | 2011-07-07 | 한국항공우주연구원 | Measurement apparatus of aerodynamic load for rotor blade and calibration method of the same |
KR20140056667A (en) * | 2012-10-30 | 2014-05-12 | 한국표준과학연구원 | Device for applying static dual-axis loads to blade |
KR101678501B1 (en) * | 2016-04-25 | 2016-11-23 | (주)마스테크 | Multipurpose transfer apparatus for fire truck |
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2017
- 2017-09-29 KR KR1020170126902A patent/KR101865180B1/en active IP Right Grant
Patent Citations (7)
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KR100250327B1 (en) * | 1996-12-30 | 2000-05-01 | 정몽규 | Transmission lever bending test jig |
US20100263448A1 (en) * | 2007-12-14 | 2010-10-21 | Alliance For Sustainable Energy, Llc. | Dual- axis resonance testing of wind turbine blades |
KR20100079680A (en) * | 2008-12-31 | 2010-07-08 | 한국항공우주연구원 | Apparatus for testing helicopter rotor blade fatigue |
KR20110032277A (en) * | 2009-09-22 | 2011-03-30 | 금원엔지니어링(주) | Load tester of a heavy weight carrier |
KR20110078999A (en) | 2009-12-31 | 2011-07-07 | 한국항공우주연구원 | Measurement apparatus of aerodynamic load for rotor blade and calibration method of the same |
KR20140056667A (en) * | 2012-10-30 | 2014-05-12 | 한국표준과학연구원 | Device for applying static dual-axis loads to blade |
KR101678501B1 (en) * | 2016-04-25 | 2016-11-23 | (주)마스테크 | Multipurpose transfer apparatus for fire truck |
Non-Patent Citations (1)
Title |
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박지상, 박중규, 황병선, 한국의 대형 풍력터빈 블레이드 정적하중 및 피로하중 시험평가 설비 개발 및 구축 현황, 유공압건설기계학회, 드라이브·컨트롤 8(1), 2011. 03., pp. 50-54. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115406645A (en) * | 2022-11-01 | 2022-11-29 | 安徽羲禾航空科技有限公司 | Propeller blade torsion testing device |
CN115406645B (en) * | 2022-11-01 | 2023-01-20 | 安徽羲禾航空科技有限公司 | Propeller blade torsion testing device |
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