CN106706261B - Balance measuring device for rolling rotation derivative experiment - Google Patents
Balance measuring device for rolling rotation derivative experiment Download PDFInfo
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- CN106706261B CN106706261B CN201611199992.0A CN201611199992A CN106706261B CN 106706261 B CN106706261 B CN 106706261B CN 201611199992 A CN201611199992 A CN 201611199992A CN 106706261 B CN106706261 B CN 106706261B
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- balance
- rolling
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- rotating shaft
- sliding block
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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
- G01M9/062—Wind tunnel balances; Holding devices combined with measuring arrangements
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a balance measuring device for wind tunnel free rolling vibration test. Under the condition of large attack angle, the conventional rolling derivative balance cannot meet the requirements of bearing the lift load of the model and measuring the angle of the model, and the invention provides a novel rolling derivative balance device which is designed aiming at the defects in the prior art. By designing a special vibrating mechanism, a rolling five-component balance and a rolling angle balance structure, the rolling direct derivative of the aircraft can be measured under a large attack angle, and the wind tunnel test requirement can be met. The invention relates to a balance measuring device for a rolling derivative experiment, and belongs to the technical field of aerodynamic wind tunnel tests.
Description
Technical Field
The invention relates to a balance measuring device for a rolling derivative experiment, and belongs to the technical field of aero-aerodynamic experiment structures.
Background
The dynamic stability derivative is simply called dynamic derivative, which is the derivative of six aerodynamic coefficients of an aircraft (namely three forces and three moment coefficients in a three-dimensional rectangular coordinate system) with respect to the time change rate (p, q, r, a, b, dV/dt) of the attitude parameters of the aircraft. The dynamic derivative is an essential raw aerodynamic parameter in the aircraft guidance system, control system and dynamic quality analysis. Particularly for spacecrafts, airships and advanced-performance military fighters, the air-flow separation, vortex shedding and cracking, longitudinal and transverse movement pneumatic interaction, hysteresis and the like usually occur, and the dynamic derivative has a larger influence on the aerodynamic characteristics of the aircraft.
The rolling derivative test balance measuring device can measure the rolling direct derivative of the aircraft. The aircraft flies under a large attack angle, the flow field is very complex, and the dynamic derivative has a large influence on aerodynamic characteristics of the aircraft. For this purpose, we need to measure the dynamic derivative of the aircraft at large angles of attack.
Disclosure of Invention
The invention provides a rolling derivative balance device which aims at the defects existing in the prior art. By designing a special balance measuring device, the rolling direct derivative of the aircraft can be measured under a large attack angle so as to meet the requirement of wind tunnel test.
The technical aim of the invention is realized by the following technical scheme:
the balance measuring device comprises a rolling five-component balance (1), a rotating shaft (2), a rolling angle balance (3), a shell (5), a sliding block (6), a guide rail (7), a motion conversion piece (8), an eccentric wheel (10), a speed reducer (12) and a motor (13);
the motor (13), the speed reducer (12), the sliding block (6), the guide rail (7), the motion conversion piece (8) and the eccentric shaft (10) are all arranged in the shell (5); the motor is in power connection with the speed reducer; the eccentric wheel is connected to the output shaft of the speed reducer (2) and is supported by a bearing; the eccentric wheel (12) comprises a cylinder and an eccentric column, one end of the cylinder is connected with an output shaft of the speed reducer, the periphery of the other end of the cylinder is provided with the eccentric column, and the eccentric column moves in a circumferential direction along with the rotation of the cylinder;
the guide rail (7) is fixed in the shell, the guide rail (7) is radially arranged relative to the eccentric wheel (12), one end of the sliding block is a motion input frame, the eccentric column is inserted in the motion input frame, the opening height of the input frame is larger than the outer diameter of the eccentric wheel, and the opening width of the input frame is the same as the outer diameter of the eccentric column; the eccentric column can slide up and down in the opening of the input frame; the sliding block is sleeved on the guide rail and can slide along the guide rail in the radial direction; the other end of the sliding block is provided with a pin column;
the motion conversion piece (8) is of a cylindrical structure, the motion conversion piece (8) is rotatably arranged in the shell, an arc-shaped chute is formed in the round surface at one end of the motion conversion piece (8), and the arc-shaped chute passes through the center of the round surface; the pin is inserted into the arc chute and is in sliding fit with the arc chute;
one end of the rotating shaft (2) is inserted into the shell, the other end of the rotating shaft extends out of the shell from the shell, the other end of the motion conversion piece (8) is fixedly connected with one end of the rotating shaft (2), and the other end of the rotating shaft (2) is fixedly connected with the five-component rolling balance (1); the rolling angle balance (3) is arranged between the rotating shaft (2) and the shell.
Further, the motor is supported on the motor support (11) and the sliding rail support (9) is also included, and the sliding rail is supported on the sliding rail support (9).
Further, a roller is arranged between the sliding block and the sliding rail, and the roller is rotatably arranged on the sliding block.
Further, the balance support rod is a hollow sleeve and is fixedly connected with the shell, the balance support rod is sleeved outside the rotating shaft, and the rotating shaft is supported in the balance support rod through a bearing.
The rolling five-component balance is used for measuring pneumatic load, lifting force, pitching moment, side force deflection, yaw moment and rolling moment of the model. The strength requirements can be met under the actions of lift force, pitching moment, side force and yawing moment. And simultaneously, the rolling moment of the model can be measured. The four-column beam can measure the lift force, pitching moment, side force deflection and yaw moment of the model. (see FIG. 4 for structure)
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial structural cross-sectional view of the present invention.
FIG. 3 is a schematic illustration of a slider structure;
FIG. 4 is a schematic diagram of a motion converter;
FIG. 5 is a schematic view of a partial structure of the present invention;
wherein: the five-component rolling balance comprises a five-component rolling balance (1), a rotating shaft (2), a rolling angle balance (3), a balance support rod (4), a shell (5), a sliding block (6), a guide rail (7), a motion conversion piece (8), a sliding rail bracket (9), an eccentric wheel (10), a motor bracket (11), a speed reducer (12) and a motor (13).
Detailed Description
The balance measuring device comprises a rolling five-component balance (1), a rotating shaft (2), a rolling angle balance (3), a shell (5), a sliding block (6), a guide rail (7), a motion conversion piece (8), an eccentric wheel (10), a speed reducer (12) and a motor (13);
the motor (13), the speed reducer (12), the sliding block (6), the guide rail (7), the motion conversion piece (8) and the eccentric shaft (10) are all arranged in the shell (5); the motor is in power connection with the speed reducer; the eccentric wheel is connected to the output shaft of the speed reducer (2) and is supported by a bearing; the eccentric wheel (12) comprises a cylinder and an eccentric column, one end of the cylinder is connected with an output shaft of the speed reducer, the periphery of the other end of the cylinder is provided with the eccentric column, and the eccentric column moves in a circumferential direction along with the rotation of the cylinder;
the guide rail (7) is fixed in the shell, the guide rail (7) is radially arranged relative to the eccentric wheel (12), one end of the sliding block is a motion input frame, the eccentric column is inserted in the motion input frame, the opening height of the input frame is larger than the outer diameter of the eccentric wheel, and the opening width of the input frame is the same as the outer diameter of the eccentric column; the eccentric column can slide up and down in the opening of the input frame; the sliding block is sleeved on the guide rail and can slide along the guide rail in the radial direction; the other end of the sliding block is provided with a pin column;
the motion conversion piece (8) is of a cylindrical structure, the motion conversion piece (8) is rotatably arranged in the shell, an arc-shaped chute is formed in the round surface at one end of the motion conversion piece (8), and the arc-shaped chute passes through the center of the round surface; the pin is inserted into the arc chute and is in sliding fit with the arc chute;
one end of the rotating shaft (2) is inserted into the shell, the other end of the rotating shaft extends out of the shell from the shell, the other end of the motion conversion piece (8) is fixedly connected with one end of the rotating shaft (2), and the other end of the rotating shaft (2) is fixedly connected with the five-component rolling balance (1); the rolling angle balance (3) is arranged between the rotating shaft (2) and the shell.
Further, the motor is supported on the motor support (11) and the sliding rail support (9) is also included, and the sliding rail is supported on the sliding rail support (9).
Further, a roller is arranged between the sliding block and the sliding rail, and the roller is rotatably arranged on the sliding block.
Further, the balance support rod (4) is a hollow sleeve and is fixedly connected with the shell, the balance support rod is sleeved outside the rotating shaft, and the rotating shaft is supported in the balance support rod through a bearing.
Claims (4)
1. The balance measuring device for the rolling derivative experiment comprises a rolling five-component balance (1), a rotating shaft (2), a rolling angle balance (3), a shell (5), a sliding block (6), a guide rail (7), a motion conversion piece (8), an eccentric wheel (10), a speed reducer (12) and a motor (13);
the motor (13), the speed reducer (12), the sliding block (6), the guide rail (7), the motion conversion piece (8) and the eccentric wheel (10) are all arranged in the shell (5); the motor is in power connection with the speed reducer; the eccentric wheel is connected to the output shaft of the speed reducer (12) and is supported by a bearing; the eccentric wheel (10) comprises a cylinder and an eccentric column, one end of the cylinder is connected with an output shaft of the speed reducer, the periphery of the other end of the cylinder is provided with the eccentric column, and the eccentric column moves in a circumferential direction along with the rotation of the cylinder;
the guide rail (7) is fixed in the shell, the guide rail (7) is radially arranged relative to the eccentric wheel (10), one end of the sliding block is a motion input frame, the eccentric column is inserted in the motion input frame, the opening height of the input frame is larger than the outer diameter of the eccentric wheel, and the opening width of the input frame is the same as the outer diameter of the eccentric column; the eccentric column can slide up and down in the opening of the input frame; the sliding block is sleeved on the guide rail and can slide along the guide rail in the radial direction; the other end of the sliding block is provided with a pin column;
the motion conversion piece (8) is of a cylindrical structure, the motion conversion piece (8) is rotatably arranged in the shell, an arc-shaped chute is formed in the round surface at one end of the motion conversion piece (8), and the arc-shaped chute passes through the center of the round surface; the pin is inserted into the arc chute and is in sliding fit with the arc chute;
one end of the rotating shaft (2) is inserted into the shell, the other end of the rotating shaft extends out of the shell from the shell, the other end of the motion conversion piece (8) is fixedly connected with one end of the rotating shaft (2), and the other end of the rotating shaft (2) is fixedly connected with the five-component rolling balance (1); the rolling angle balance (3) is arranged between the rotating shaft (2) and the shell.
2. A balance measurement device for a rolling derivative experiment according to claim 1, characterized in that: the motor is supported on the motor support (11), and the sliding rail is supported on the sliding rail support (9).
3. A balance measurement device for a rolling derivative experiment according to claim 1, characterized in that: and a roller is arranged between the sliding block and the sliding rail, and is rotatably arranged on the sliding block.
4. A balance measurement device for a rolling derivative experiment according to claim 1, characterized in that: the balance support rod is a hollow sleeve and is fixedly connected with the shell, the balance support rod is sleeved outside the rotating shaft, and the rotating shaft is supported in the balance support rod through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199992.0A CN106706261B (en) | 2016-12-22 | 2016-12-22 | Balance measuring device for rolling rotation derivative experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199992.0A CN106706261B (en) | 2016-12-22 | 2016-12-22 | Balance measuring device for rolling rotation derivative experiment |
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| Publication Number | Publication Date |
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| CN106706261A CN106706261A (en) | 2017-05-24 |
| CN106706261B true CN106706261B (en) | 2023-08-04 |
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| CN201611199992.0A Active CN106706261B (en) | 2016-12-22 | 2016-12-22 | Balance measuring device for rolling rotation derivative experiment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160730B (en) * | 2019-06-24 | 2021-10-29 | 日照坤仑智能科技有限公司 | Device and method for testing separation performance of aircraft plug-in high-speed wind tunnel |
| CN115854799B (en) * | 2023-02-28 | 2023-06-09 | 中国航空工业集团公司沈阳空气动力研究所 | Magnus test device and method |
| CN117890073B (en) * | 2024-03-15 | 2024-05-14 | 中国航空工业集团公司沈阳空气动力研究所 | Force balance and driving shaft integrated rolling rotation derivative test device |
| CN117890072B (en) * | 2024-03-15 | 2024-05-10 | 中国航空工业集团公司沈阳空气动力研究所 | Force measuring level and angle balance integrated pitching dynamic derivative test device |
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| JPH05322692A (en) * | 1992-05-26 | 1993-12-07 | Mitsubishi Heavy Ind Ltd | Wind tunnel test device |
| CN101726401A (en) * | 2009-12-09 | 2010-06-09 | 中国航空工业第一集团公司沈阳空气动力研究所 | Scale measuring device for pitching dynamic derivative experiment |
| CN102721521A (en) * | 2011-03-29 | 2012-10-10 | 中国航空工业第一集团公司沈阳空气动力研究所 | Measuring device for wind tunnel large-amplitude roll oscillation experiment |
| CN104359643A (en) * | 2014-10-29 | 2015-02-18 | 中国航空工业集团公司哈尔滨空气动力研究所 | Pitching-rolling two-degree-of-freedom experimental platform based on electromechanical hydraulic coupling drive |
| CN205642791U (en) * | 2015-12-29 | 2016-10-12 | 中国航天空气动力技术研究院 | Wind -tunnel is with toper motion simulation device of rotatory guided missile |
| CN206618555U (en) * | 2016-12-22 | 2017-11-07 | 中国航空工业集团公司沈阳空气动力研究所 | A kind of balance measurement device tested for rolling dynamic derivative |
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2016
- 2016-12-22 CN CN201611199992.0A patent/CN106706261B/en active Active
Patent Citations (6)
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| JPH05322692A (en) * | 1992-05-26 | 1993-12-07 | Mitsubishi Heavy Ind Ltd | Wind tunnel test device |
| CN101726401A (en) * | 2009-12-09 | 2010-06-09 | 中国航空工业第一集团公司沈阳空气动力研究所 | Scale measuring device for pitching dynamic derivative experiment |
| CN102721521A (en) * | 2011-03-29 | 2012-10-10 | 中国航空工业第一集团公司沈阳空气动力研究所 | Measuring device for wind tunnel large-amplitude roll oscillation experiment |
| CN104359643A (en) * | 2014-10-29 | 2015-02-18 | 中国航空工业集团公司哈尔滨空气动力研究所 | Pitching-rolling two-degree-of-freedom experimental platform based on electromechanical hydraulic coupling drive |
| CN205642791U (en) * | 2015-12-29 | 2016-10-12 | 中国航天空气动力技术研究院 | Wind -tunnel is with toper motion simulation device of rotatory guided missile |
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