CN211234911U - Exciting device for expressing airflow disturbance and aeroelasticity wind tunnel test model thereof - Google Patents
Exciting device for expressing airflow disturbance and aeroelasticity wind tunnel test model thereof Download PDFInfo
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- CN211234911U CN211234911U CN201922309712.2U CN201922309712U CN211234911U CN 211234911 U CN211234911 U CN 211234911U CN 201922309712 U CN201922309712 U CN 201922309712U CN 211234911 U CN211234911 U CN 211234911U
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Abstract
The application belongs to the technical field of pneumatic elastic wind tunnel tests of pneumatic elastomers, and particularly relates to an excitation device for expressing airflow disturbance, which comprises: the motor is arranged inside the pneumatic elastic body; and one end of the eccentric connecting rod is connected with a rotating output shaft of the motor. Furthermore, it relates to an aeroelastic wind tunnel test model comprising: the pneumatic elastic body is internally provided with a pneumatic elastic cavity; the exciting device for expressing the airflow disturbance is arranged in the aeroelastic cavity.
Description
Technical Field
The application belongs to the technical field of aeroelasticity wind tunnel tests of pneumatic elastomers, and particularly relates to an excitation device for expressing airflow disturbance and an aeroelasticity wind tunnel test model thereof.
Background
The aeroelasticity wind tunnel test is an important means for understanding the mechanical behavior of an elastic body under the action of airflow, wherein the accurate aerodynamic appearance needs to be ensured for aerodynamic force simulation, the actual airflow disturbance needs to be considered, currently, a charging and discharging mode is mostly adopted for unidirectional excitation for simulating the airflow disturbance, and the technical scheme needs to consume higher cost.
The present application is made in view of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The present application is directed to an excitation device for representing airflow disturbance and an aeroelastic wind tunnel test model thereof, so as to overcome or alleviate at least one of the disadvantages of the prior art.
The technical scheme of the application is as follows:
one aspect provides an excitation device exhibiting airflow disturbances, comprising:
the motor is arranged inside the pneumatic elastic body;
and one end of the eccentric connecting rod is connected with a rotating output shaft of the motor.
According to at least one embodiment of the application, the motor is a variable frequency motor.
According to at least one embodiment of the present application, further comprising:
and the eccentric balancing weight is connected with one end of the eccentric connecting rod, which is far away from the rotating output shaft of the motor.
According to at least one embodiment of the present application, further comprising:
a stopper having:
in a pulse excitation state, the baffle is arranged in the pneumatic elastic body so as to block the eccentric connecting rod from rotating;
in a non-pulse excitation state, the baffle plate is far away from the eccentric connecting rod.
According to at least one embodiment of the present application, further comprising:
the remote control information signal generating device is used for generating a remote control signal;
and the remote control signal receiving device is electrically connected with the motor and used for receiving the remote control signal and controlling the motor to start or stop according to the remote control signal.
In another aspect, an aeroelastic wind tunnel test model is provided, which includes:
the pneumatic elastic body is internally provided with a pneumatic elastic cavity;
any of the above-described excitation devices exhibiting airflow disturbances is disposed within the aeroelastic chamber.
Drawings
FIG. 1 is a schematic diagram of an aeroelastic wind tunnel test model provided in an embodiment of the present application;
1-a motor; 2-a pneumatic elastomer; 3-eccentric link; 4-eccentric balancing weight.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being 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 meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
The present application is described in further detail below with reference to fig. 1.
One aspect provides an excitation device exhibiting airflow disturbances, comprising:
the motor 1 is arranged inside the pneumatic elastic body 2;
and one end of the eccentric connecting rod 3 is connected with a rotating output shaft of the motor 1.
For the exciting device showing the airflow disturbance disclosed in the above embodiment, as can be understood by those skilled in the art, the exciting device is arranged inside the pneumatic elastic body 2, the motor 1 is connected with the pneumatic elastic body 2, the motor 2 drives the eccentric connecting rod 3 connected with the motor to rotate through the rotation of the rotating output shaft, eccentric vibration is generated inside the pneumatic elastic body 2, and the pneumatic elastic body 2 is excited inside, so that the disturbance of turbulence to the pneumatic elastic body 2 can be simulated in the pneumatic elastic wind tunnel test, and the exciting device is easy to implement, low in cost, and does not damage the pneumatic appearance of the pneumatic elastic body 2.
In some alternative embodiments, the motor 1 is a variable frequency motor to enable excitation of the pneumatic spring body 2 at multiple frequencies.
In some optional embodiments, further comprising:
and the eccentric balancing weight 4 is connected with one end of the eccentric connecting rod 3, which is far away from the rotating output shaft of the motor 1.
For the excitation device showing the airflow disturbance disclosed in the above embodiment, it can be understood by those skilled in the art that the specific position of the eccentric weight block 4 and the weight thereof can be designed according to the size of the simulated disturbance flow.
In some optional embodiments, further comprising:
a stopper having:
in a pulse excitation state, the baffle is arranged in the pneumatic elastic body 2 to block the eccentric connecting rod 3 from rotating;
in a non-pulse excitation state, the baffle plate is far away from the eccentric connecting rod 3.
As for the excitation device showing the airflow disturbance disclosed in the above embodiment, it can be understood by those skilled in the art that when the blocking piece is in the pulse excitation state and the eccentric link 3 rotates to the position where it collides with the blocking piece, the eccentric link 3 will stop rotating due to the blocking effect of the blocking piece, so as to generate the pulse excitation to the pneumatic elastic body 2; when the baffle plate is in a non-pulse excitation state, the baffle plate is far away from the eccentric connecting rod 3, namely, the baffle plate does not generate a blocking effect on the rotation of the eccentric connecting rod 3 any more.
In some optional embodiments, further comprising:
the remote control information signal generating device is used for generating a remote control signal;
and the remote control signal receiving device is electrically connected with the motor 1 and used for receiving a remote control signal and controlling the motor 1 to start or stop according to the remote control signal.
In another aspect, an aeroelastic wind tunnel test model is provided, which includes:
a pneumatic elastic body 2 having a pneumatic elastic cavity therein;
any of the above-described excitation devices exhibiting airflow disturbances is disposed within the aeroelastic chamber.
For the aeroelastic wind tunnel test model disclosed in the above embodiment, those skilled in the art can understand that the aeroelastic wind tunnel test model is composed of the aeroelastic body 2 and the exciting device for expressing the airflow disturbance arranged inside the aeroelastic body 2, when the aeroelastic wind tunnel test is performed, the motor 1 of the exciting device for expressing the airflow disturbance rotates inside the aeroelastic body 2, the eccentric connecting rod 3 is driven to rotate by rotating the output shaft, and the excitation is generated inside the aeroelastic body 2, so that the disturbance of the pneumatic elastic body caused by the turbulent flow can be simulated, and the exciting device for expressing the airflow disturbance is arranged on the aeroelastic body 2 and cannot damage the pneumatic appearance of the aeroelastic body 2.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.
Claims (6)
1. An excitation device exhibiting airflow disturbances, comprising:
the motor (1) is arranged inside the pneumatic elastic body (2);
and one end of the eccentric connecting rod (3) is connected with a rotating output shaft of the motor (1).
2. An excitation device exhibiting airflow disturbances according to claim 1,
the motor (1) is a variable frequency motor.
3. An excitation device exhibiting airflow disturbances according to claim 1,
further comprising:
and the eccentric balancing weight (4) is connected with one end, far away from the rotating output shaft of the motor (1), of the eccentric connecting rod (3).
4. An excitation device exhibiting airflow disturbances according to claim 1,
further comprising:
a stopper having:
in a pulse excitation state, the baffle is arranged inside the pneumatic elastic body (2) so as to block the eccentric connecting rod (3) from rotating;
in a non-pulse excitation state, the baffle plate is far away from the eccentric connecting rod (3).
5. An excitation device exhibiting airflow disturbances according to claim 1,
further comprising:
the remote control information signal generating device is used for generating a remote control signal;
and the remote control signal receiving device is electrically connected with the motor (1) and is used for receiving the remote control signal and controlling the motor (1) to start or stop according to the remote control signal.
6. An aeroelastic wind tunnel test model, characterized by comprising:
a pneumatic elastic body (2) having a pneumatic elastic cavity therein;
an actuating means exhibiting airflow disturbances according to any of claims 1 to 5 disposed within the aeroelastic chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309712.2U CN211234911U (en) | 2019-12-20 | 2019-12-20 | Exciting device for expressing airflow disturbance and aeroelasticity wind tunnel test model thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309712.2U CN211234911U (en) | 2019-12-20 | 2019-12-20 | Exciting device for expressing airflow disturbance and aeroelasticity wind tunnel test model thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211234911U true CN211234911U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922309712.2U Active CN211234911U (en) | 2019-12-20 | 2019-12-20 | Exciting device for expressing airflow disturbance and aeroelasticity wind tunnel test model thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211234911U (en) |
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2019
- 2019-12-20 CN CN201922309712.2U patent/CN211234911U/en active Active
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