CN108548649B

CN108548649B - Single-channel aerodynamic loading test system of simple pendulum thrust vectoring nozzle

Info

Publication number: CN108548649B
Application number: CN201810179237.9A
Authority: CN
Inventors: 尚耀星; 李晓斌; 吴帅; 李兴鲁; 焦宗夏
Original assignee: Beijing University of Aeronautics and Astronautics
Current assignee: Beijing University of Aeronautics and Astronautics
Priority date: 2018-03-05
Filing date: 2018-03-05
Publication date: 2020-01-31
Anticipated expiration: 2038-03-05
Also published as: CN108548649A

Abstract

The disclosure provides an single-channel aerodynamic loading test system of a simple pendulum thrust vectoring nozzle, which comprises a loading connecting part, a loading device support and a thrust vectoring nozzle installation device, wherein the loading connecting part is connected with the thrust vectoring nozzle, the loading device is connected with the loading connecting part and used for achieving aerodynamic loading of the thrust vectoring nozzle, the loading device support is connected with the loading device so as to support the loading device, and the thrust vectoring nozzle installation device is used for installing the thrust vectoring nozzle.

Description

Single-channel aerodynamic loading test system of simple pendulum thrust vectoring nozzle

Technical Field

The disclosure relates to a single-channel aerodynamic loading test system of simple pendulum thrust vectoring nozzles.

Background

In the flying process of the aircraft, the vectoring nozzle needs to play a plurality of roles of pushing, turning, posture adjusting and the like. If the vector nozzle has defects in design or control, flight accidents are easily caused. Therefore, the load simulation test of the thrust vectoring nozzle in the aircraft design process is particularly important.

The vectoring nozzle loading has various requirements on the aspects of loading mode, load size, load embodiment form and the like, so that the selection of a loading mechanism, the fixing mode of a loading channel and the connection form of the loading mechanism and a control surface become the key points for building different load simulation platforms.

novel load simulator loading structures are designed to meet the technical indexes of steering engine loading tests and facilitate adjustment, maintenance and replacement.

Disclosure of Invention

To address at least of the above-mentioned technical problems, the present disclosure provides a single-pass aerodynamic loading test system for a simple pendulum thrust vectoring nozzle.

According to aspects of the present disclosure, a single-pass aerodynamic loading test system of a simple pendulum thrust vectoring nozzle, comprising:

the loading connecting part is connected with the vectoring nozzle;

the loading device is connected with the loading connecting part to realize aerodynamic loading of the vectoring nozzle;

a loading device support connected with the loading device to support the loading device; and

and the vector spray pipe mounting device is used for mounting the vector spray pipe.

According to at least embodiments of the present disclosure, the loading test system further comprises a platform, the vectoring nozzle mounting device is arranged on the top surface of the platform, and the bottom surface of the platform is fixedly connected with the ground.

In at least embodiments according to the present disclosure, the top surface of the stage is provided with a T-slot into which the vectoring nozzle mount is disposed, and the position of the vectoring nozzle mount is adjusted by movement of the vectoring nozzle mount along the T-slot.

In accordance with at least embodiments of the present disclosure, the securement is by a T-bolt when the vectoring nozzle mounting device is moved to a predetermined position in the T-slot.

At least embodiments of the present disclosure provide a loading device support that is fixedly coupled to the top surface of the table body.

In accordance with at least embodiments of the present disclosure, the height of the loading device and the loading connection is adjusted by the loading device mount.

In accordance with at least embodiments of the present disclosure, the vectoring nozzle mounting arrangement is configured to provide single axis oscillation of the vectoring nozzle.

In accordance with at least embodiments of the present disclosure, the load testing system further includes a servo control device that servo controls the thrust vectoring nozzle and is coupled to the thrust vectoring nozzle mounting device.

In at least embodiments according to the present disclosure, the loading device is hinged to the loading device mount and the servo control device is hinged to the vectoring nozzle mount, and the loading device is hinged to the loading connection and the servo control device is hinged to the loading connection.

According to at least embodiments of the present disclosure, the loading force generated by the loading device and the control force generated by the servo control device are in the same plane through the position adjustment of the loading device support.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is a loading configuration schematic of a single pass aerodynamic loading test system of a simple pendulum thrust vectoring nozzle according to embodiments of the present disclosure.

FIG. 2 is a schematic block diagram of a single pass aerodynamic loading test system for a simple pendulum thrust vectoring nozzle according to embodiments of the present disclosure.

Fig. 3 is a schematic diagram of embodiments of a loading channel according to the present disclosure.

Detailed Description

The present disclosure will now be described in further detail with reference to the figures and examples , it being understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the disclosure.

It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Fig. 1 shows a loading configuration diagram of a single-pass aerodynamic loading test system for a simple pendulum thrust vectoring nozzle according to embodiments of the present disclosure, a servo control device 10, a loading device 20, and a thrust vectoring nozzle 30 are shown in fig. 1.

Wherein the servo-control device 10 can be used for servo-controlling the vectoring nozzle 30 and the loading device 20 is used for carrying out an aerodynamic simulation loading of the vectoring nozzle 30.

In the alternative embodiments of the present disclosure, the servo control may be achieved by electronic control.

Referring now to FIG. 2, a single pass aerodynamic loading test system for an embodiment of a simple pendulum thrust vectoring nozzle according to the present disclosure will be described in detail, in contrast to FIG. 1, the servo control 10 is not shown in FIG. 2.

Referring to fig. 2, the single-channel aerodynamic loading test system of the simple pendulum thrust vectoring nozzle comprises a loading connecting part 1, a loading device support 3 and a thrust vectoring nozzle mounting device 4.

Load attachment 1 is used to mount the vectoring nozzle 30 and aerodynamically load the vectoring nozzle 30. in the alternative embodiment of the present disclosure, the load attachment 1 may be a load attachment bracket that may be hinged to the end of the loading device by a linkage member so as to be movable relative to the loading device.

The loading means may comprise a loading cylinder 2, whereby hydraulic pressure is used as a power source.

The other end of the loading device can be connected to the loading device support 3, optionally by a hinged connection, and the height and position of the loading device and the loading connection can be adjusted by adjusting the loading device support 3. in alternative embodiments of the present disclosure, the height of the loading device support 3 can be adjusted by replacing a support 3 of a different size and adding a backing plate, etc., thereby achieving the function of adjusting the height and position by the loading device support 3.

Vectoring nozzle mounting device 4 is used to mount a vectoring nozzle 30 (not shown in FIG. 2).

In the alternative embodiments of the present disclosure, shown in FIG. 2, vectoring nozzle mounting device 4 includes a plurality of struts 41, a mounting block 42, side mounts 43, and a base member 44.

The strut 41 is connected at both ends thereof to a mounting table 42 and a bottom member 44, respectively, and side mounting pieces 43 (alternatively, two side mounting pieces) are provided on the mounting table 42. When performing a loading test, vectoring nozzle 30 may be directly mounted on mounting block 42 to support vectoring nozzle 30.

Side mounts 43 may be used to effect a single axis swing of vectoring nozzle 30, such as a side-to-side swing in FIG. 2.

The servo control 10 has its end connected to the hinge connection 11 shown in fig. 2 and its end connected to the hinge connection end 12 at the load connection 1.

According to optional embodiments of the disclosure, the single-channel aerodynamic loading test system of the simple pendulum thrust vectoring nozzle can further comprise a table body 5. the table body 5 can be manufactured in an integral casting manner, the installation of the tool of the table body can ensure the structural stability of the thrust vectoring nozzle under the loading working condition during installation, can ensure the installation rigidity relatively close to that of a real aircraft, and can also leave fixed adjustment margins in all installation directions.

The top surface of the table body 5 is provided with a T-shaped groove 51, and the bottom part 44 of the vectoring nozzle mounting device 4 is connected with the table body 5. And the vectoring nozzle mounting device 4 can be moved along the T-slot 51, for example back and forth in fig. 2, so that back and forth movement of the load connection 1 can be achieved. When the load attachment 1 is moved to a predetermined position, the vectoring nozzle mounting device 4 may be secured by a fastener, such as a T-bolt.

Further, the loading device mount 3 may be provided at the top surface of the table body 5.

The table body 5 may be fixed to the ground, for example, by anchor bolts, thereby securing the structural stability.

The design of the loading device needs to consider the positions of the loading channel and the loading connecting frame, the acting direction and the acting point of the applied force and the like.

In the present disclosure, the loading unit 20 is pivotally mounted on the loading unit support 3. by controlling the loading passage, it is possible to ensure loading of unidirectional force to the vectoring nozzle, the position of the pivoting support can be adjusted, and at the same time, it is ensured by the link that the loading force generated by the loading unit is in the same plane as the force generated by the servo control unit of the vectoring nozzle.

According to the loading test system disclosed by the invention, firmware adjustment can be carried out according to different vectoring nozzles, and the loading test system is suitable for single-channel force loading tests of various one-way adjusting nozzles. And its mechanical structure design is exquisite, is convenient for adjust and part change, safe and reliable, long service life.

The loading test system of the present disclosure may thus be well suited for use in simulation testing of aircraft vectoring nozzle loads.

Furthermore, it should be understood by those skilled in the art that the loading test system of the present disclosure is not limited to simulation testing of aircraft vectoring nozzle loads, but may be adapted for testing of corresponding other nozzles and the like.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1, kind of simple pendulum thrust vectoring nozzle's single channel aerodynamic force loading test system, its characterized in that includes:

a load connection to the end of the vectoring nozzle;

the loading device is connected with the loading connecting part and used for realizing unidirectional aerodynamic loading of the vectoring nozzle;

a loading device support connected with the loading device so as to support the loading device;

vectoring nozzle mounting means for mounting the other end of the vectoring nozzle and imparting a single axis of oscillation to the vectoring nozzle, and

a servo control device for servo-controlling the vectoring nozzle, wherein an end of the servo control device is connected to the hinged connection end of the vectoring nozzle mounting device, and the other end of the servo control device is connected to the hinged connection end of the loading connection part;

the loading force generated by the loading device and the control force generated by the servo control device are in the same plane through the position adjustment of the loading device support.

2. The loading test system of claim 1, further comprising a platform, wherein the vectoring nozzle mount is disposed on a top surface of the platform, and a bottom surface of the platform is fixedly attached to the ground.

3. The load testing system of claim 2, wherein a top surface of the table body is provided with a T-slot, the vectoring nozzle mount being disposed into the T-slot, the position of the vectoring nozzle mount being adjusted by movement of the vectoring nozzle mount along the T-slot.

4. A load testing system according to claim 3, wherein said vectoring nozzle mounting means is secured by a T-bolt when moved to a predetermined position in said T-slot.

5. A load testing system according to any of claims 2 to 4 and , wherein the loading device support is fixedly attached to the top surface of the platform.

6. A load testing system according to claim 5, wherein the height of the loading means and the loading connection is adjusted by the loading means support.

7. A load testing system according to any wherein the height of the loading unit and the load connection is adjusted by the loading unit mount.

8. The load testing system of claim 1,

the loading device is hinged to the loading device support.