Semi-flexible wall throat block and flexible plate coordination control method for nozzle section of continuous transonic wind tunnel
A coordinated control and transonic technology, applied to controllers with specific characteristics, electric controllers, electrical program control, etc., can solve problems such as large safety hazards, damage to the throat block and flexible board actuators, and plastic deformation of the flexible board
Active Publication Date: 2018-06-29
中国空气动力研究与发展中心设备设计及测试技术研究所 +1
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Problems solved by technology
The presence of tension between the two means over-constraint. If the tension exceeds a certain strength, it will inevitably cause plastic deformation to the flexible board, thereby damaging the flexible board or even destroying the entire system, which poses a great safety hazard.
[0005] If the throat block part of the existing semi-flexible-wall nozzle still adopts the synchronous control method of the throat block of the traditional semi-flexible-wall nozzle, once the space pose of the throat block is not coordinated with the deformation control of the flexible plate, especially the positive deviation (throat block and flexible plate plate contact force is tension), on the one hand, it will damage the flexible plate, resulting in plastic deformation, on the other hand, it may also damage the throat block and the flexible plate actuator
Therefore, the traditional semi-flexible nozzle control method cannot be used
Method used
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[0073] The present invention will be further described below in conjunction with accompanying drawing:
[0074] The technical problem to be solved by the present invention is to provide a coordinated control method for the semi-flexible throat block and the flexible plate of the nozzle section of the continuous transonic wind tunnel.
[0075] The semi-flexible-wall throat block and flexible plate coordinated control method of the continuous transonic wind tunnel nozzle section of the present invention is characterized in that: the equipment used in the coordinated control method includes an upper computer, a lower computer, a driver, an actuator, a position transducers and force sensors such as Figure 6 ; The actuator includes an actuator that controls each drive unit of the adjustable shrinkage block, the throat block, and the flex plate, and the actuator includes a driver corresponding to the actuator.
[0076] The connection relationship is that the upper computer, the lo...
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The invention discloses a semi-flexible wall throat block and flexible plate coordination control method for a nozzle section of a continuous transonic wind tunnel. In a target Mach number pneumatic profile molding test, three parts of the nozzle section, namely an adjustable contraction section, a throat block section and a flexible plate section, are controlled to simulate a pneumatic profile required by the target Mach number. According to the semi-flexible wall throat block and flexible plate coordination control method for the nozzle section of the continuous transonic wind tunnel disclosed by the invention, tension and pressure at the joint of the throat block and the flexible plate can be monitored in real time, and by virtue of a deviation zone control method, the tension and pressure can be minimal, so that the throat block and the flexible plate can be well subjected to rigid-flexible coupled coordination control, the pneumatic profile precision requirement is met, and the system safety is improved.
Description
technical field [0001] The invention relates to the technical field of coordinated control of nozzle sections of continuous transonic wind tunnels, and in particular to a method for coordinating the space pose control of a throat block and the elastic deformation of a flex plate. This method is mainly used for the coordinated control of the semi-flexible throat block and the flexible plate in the nozzle section of the continuous transonic wind tunnel. Background technique [0002] The supersonic nozzle is the core section of the supersonic wind tunnel. With the improvement of its operating capability, the supersonic nozzle of the wind tunnel has gone through three processes: solid block nozzle, fully flexible nozzle and semi-flexible nozzle. Among them, the solid block nozzle is the type used in the early supersonic wind tunnel nozzle, which has good flow field quality and high repeatability, but has the disadvantages of being unable to adjust the Mach number and having low ...
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IPC IPC(8): G01M9/02G05B19/05G05B11/42
CPCG01M9/02G05B11/42G05B19/05
Inventor 皮阳军李念平刘飞谢志江宋代平陈振华尹永涛廖文林张浩张志秋
Owner 中国空气动力研究与发展中心设备设计及测试技术研究所