CN113819487A - Transient adjustable distortion generating device for coupling air inlet surplus rotation angle and temperature distribution - Google Patents
Transient adjustable distortion generating device for coupling air inlet surplus rotation angle and temperature distribution Download PDFInfo
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- 230000001052 transient effect Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 122
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 12
- 230000003993 interaction Effects 0.000 claims description 3
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
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Abstract
The invention discloses a transient adjustable distortion generating device for coupling an air inlet surplus rotation angle and temperature distribution, belonging to the technical field of afterburners of gas turbines; each coupling blade is provided with six independent driving mechanisms, and the installation angle, the torsion angle and the cooling air flow temperature of different coupling blades can be independently adjusted in real time through the adjusting mechanism, so that a complex extreme coupling flow field with temperature distribution and non-uniform complementary rotation angle distribution existing at the inlet of an actual afterburner can be immediately generated at the speed of real engine maneuvering. The tail edge of the coupling blade can be twisted to enlarge the range of a mode capable of generating a temperature uneven flow field profile, the reproduction capability of the coupling blade with high degree of freedom to a high-complementary rotation angle area is enhanced, the order reduction approximation of a distorted flow field profile is not needed, a target complementary rotation angle and a temperature distribution coupling distorted inlet flow field can be obtained on a time space scale under the condition of no stop, and the transient complementary rotation angle and temperature distribution coupling distortion simulation is realized.
Description
Technical Field
The invention belongs to the technical field of afterburners of gas turbines, and particularly relates to a transient adjustable distortion generating device for coupling an air inlet surplus rotation angle and temperature distribution.
Background
The integrated afterburner divides the support means of the conventional turbine components into afterburners for integrated design, so that the inlet cross-section of the integrated afterburner is advanced to the power outlet cross-section of the turbine. The air inlet condition of the afterburner is worse, and the air inlet surplus rotation angle has non-uniformity in the radial direction and the circumferential direction due to non-uniformity in the work of the turbine and the wake flow effect generated by the rotation of the turbine blades; the uneven temperature distribution at the outlet of the turbine is generated by cooling the wall surface of the turbine by cooling air and discontinuous fuel injection of a main combustion chamber. The above factors jointly cause the inlet of the integrated afterburner to be the air inlet condition with strong non-uniform complementary rotation angle (non-uniform air inlet complementary rotation angle and non-uniform air inlet temperature distribution), and the integrated afterburner is one of the important factors influencing the stable work of the afterburner.
Under the real flight condition, the inlet airflow parameters of the afterburner have air inlet corotation angle and air inlet temperature distribution distortion at the same time, the flow field is not the simple superposition of two distorted flow fields, the traditional corotation distortion generating device can only generate a single air inlet distorted flow field, and the effect of the two distorted flow field coupling on the afterburner cannot be simulated at the same time. The flow field generated by some adjustable residual rotation or temperature distortion generating devices is only approximate to the reduced order of a real inlet flow field, cannot reproduce a transient complex extreme distortion flow field under an actual flight working condition, and cannot meet the test requirements of researching the residual rotation angle and temperature distribution coupling distortion characteristic and simulating the air inlet residual rotation angle and temperature distribution coupling distortion flow field in real time in the future.
Disclosure of Invention
The invention discloses a transient adjustable distortion generating device for coupling an air inlet surplus rotation angle and temperature distribution, which aims at solving the problems in the prior art, is an air inlet surplus rotation angle and temperature distribution coupling distortion generating device for intelligently adjusting the torsion angle and the installation angle of a blade and the flow temperature of cold air released by the tail edge of the blade, and solves the problem that the coupled air inlet flow field of complex extreme surplus rotation angle and temperature which are unevenly distributed along the radial direction and the circumferential direction under the real working condition of an afterburner inlet cannot be generated in real time at present.
The invention is realized by the following steps:
a transient adjustable distortion generating device for coupling an air inlet surplus rotation angle and temperature distribution is characterized by comprising an annular casing, wherein a plurality of coupling blades are arranged in the annular casing; the coupling blade is divided into three parts, including a blade front edge, a blade main body and a blade tail edge which is obliquely arranged; the trailing edge of the vane acts as a cooling air nozzle which may twist to expand the range of flow field profile modes in which temperature non-uniformities may be generated. The tail edge of the twistable blade is used as a cooling gas release component to perform distortion coupling on the air inlet surplus rotation angle and the temperature distribution, so that the problem that the coupled air inlet flow field with the complex extreme surplus rotation angle and the temperature which are unevenly distributed along the radial direction and the circumferential direction under the real working condition cannot be generated in real time in the existing afterburner is solved.
The tail edge of the blade is divided into four tail edge sections, namely a first tail edge section, a second tail edge section, a third tail edge section and a fourth tail edge section; the tail edge sections have no interaction; the hollow cylindrical rotating mechanism comprises a first hollow cylindrical rotating mechanism, a second hollow cylindrical rotating mechanism, a third hollow cylindrical rotating mechanism and a fourth hollow cylindrical rotating mechanism; the first tail edge section, the second tail edge section, the third tail edge section and the fourth tail edge section are respectively welded with the first hollow cylindrical rotating mechanism, the second hollow cylindrical rotating mechanism, the third hollow cylindrical rotating mechanism and the fourth hollow cylindrical rotating mechanism;
the first hollow cylindrical rotating mechanism, the second hollow cylindrical rotating mechanism, the third hollow cylindrical rotating mechanism and the fourth hollow cylindrical rotating mechanism are respectively connected with the stepping motor through four parts which penetrate through the external casing through the second arc-shaped opening, and output adjusting signals through a set program to drive the hollow cylindrical rotating mechanisms to circumferentially rotate within a range of +/-30 degrees along the central line of the second arc-shaped opening, so that the tail edge angle of the coupling blade can be adjusted in real time along the radial direction.
Further, a rectangular flow channel is arranged inside the tail edge of the blade; a hollow cylindrical mechanism flow channel is arranged in the hollow cylindrical rotating mechanism; specifically, the centers of the first trailing edge section, the second trailing edge section, the third trailing edge section and the fourth trailing edge section are respectively and correspondingly provided with a first rectangular flow channel, a second rectangular flow channel, a third rectangular flow channel and a fourth rectangular flow channel;
the center of the first hollow cylindrical rotating mechanism, the center of the second hollow cylindrical rotating mechanism, the center of the third hollow cylindrical rotating mechanism and the center of the fourth hollow cylindrical rotating mechanism are respectively and correspondingly provided with a first hollow cylindrical mechanism flow channel, a second hollow cylindrical mechanism flow channel, a third hollow cylindrical mechanism flow channel and a fourth hollow cylindrical mechanism flow channel.
Furthermore, the first rectangular flow channel, the second rectangular flow channel, the third rectangular flow channel, the fourth rectangular flow channel, the first hollow cylindrical mechanism flow channel, the second hollow cylindrical mechanism flow channel, the third hollow cylindrical mechanism flow channel and the fourth hollow cylindrical mechanism flow channel are correspondingly connected, cooling air with adjustable flow and temperature is provided for each hollow cylindrical mechanism flow channel and is released through each trailing edge rectangular flow channel, the cooling air speed is approximately equal to the high-temperature main flow speed so as to inhibit temperature gradient dissipation, and then a temperature uneven flow field with an obvious outline is formed at the trailing edge of the blade.
Furthermore, a first cylindrical rotating mechanism, a second cylindrical rotating mechanism and a hollow cylindrical rotating mechanism are welded at the end part of the front edge of the blade; the first cylindrical rotating mechanism is hinged with the blade main body at the same time; a first arc-shaped opening is formed in the joint of the first cylindrical rotating mechanism and the front edge of the blade, the first cylindrical rotating mechanism penetrates through an external casing through the first arc-shaped opening to be connected with a stepping motor, and an adjusting signal is output through a set program to drive the first cylindrical rotating mechanism to rotate circumferentially along the central line of the first arc-shaped opening, so that the front edge of the blade of the coupling blade is adjusted within a +/-15-degree range in real time;
the second cylindrical rotating mechanism is welded with the blade main body at the same time, a circular opening is formed in the joint of the second cylindrical rotating mechanism and the front edge of the blade, the second cylindrical rotating mechanism is connected with the stepping motor through the circular opening, and the adjustment signal is output through a set program to drive the second cylindrical rotating mechanism to rotate circumferentially along the fixed shaft, so that the real-time adjustment of the installation angle of the coupling blade within the range of +/-25 degrees is realized.
Furthermore, the blade front edge, the blade main body, the first tail edge section, the second tail edge section, the third tail edge section and the fourth tail edge section of the coupling blade form six independent driving mechanisms, so that the torsion angle of the coupling blade can be adjusted along the radial direction.
Further, the coupling blade planforms are tapered to maintain a constant consistency from the blade root to the blade tip, and each blade assembly is removable for maintenance or replacement.
Further, the first arc-shaped opening and the second arc-shaped opening both use an arc-shaped sealing sheet as a sealing device, and the angle of the arc-shaped sealing sheet is more than twice of the angle of the first arc-shaped opening and the angle of the second arc-shaped opening; and a graphite packing seal is used between the circular opening and the second cylindrical rotating mechanism as a sealing measure.
The front edge of the blade is welded with the cylindrical rotating mechanism, the cylindrical rotating mechanism is hinged with the main body of the blade at the same time, the cylindrical rotating mechanism penetrates through an external casing through an arc-shaped opening and can be connected with a stepping motor, and an adjusting signal is output through a set program to drive the cylindrical rotating mechanism to rotate circumferentially along the central line of the arc-shaped opening, so that the real-time adjustment of the angle of the front edge of the coupled blade within the range of +/-15 degrees is realized. The blade main body is welded with the cylindrical rotating mechanism, the cylindrical rotating mechanism is connected with the stepping motor through a circular opening of an external casing, and the cylindrical rotating mechanism is driven to rotate circumferentially along the fixed shaft by outputting an adjusting signal through a set program, so that the real-time adjustment of the installation angle of the coupling blade within the range of +/-25 degrees is realized. The tail edge of the blade is divided into four tail edge sections, the tail edge sections have no interaction effect, the tail edge sections are respectively welded with the hollow cylindrical rotating mechanisms, the hollow cylindrical rotating mechanisms penetrate through an external casing through an arc opening and are connected with a stepping motor, and adjusting signals are output through a set program to drive the cylindrical rotating mechanisms to circumferentially rotate within the range of +/-30 degrees along the central line of the arc opening, so that the tail edge angle of the coupling blade can be adjusted in real time along the radial direction.
The rectangular flow channel is arranged in the center of the tail edge section of the blade and connected with the flow channels in the hollow cylindrical rotating mechanisms, cooling air with adjustable flow and temperature is provided for each hollow cylindrical mechanism and is released through each tail edge flow channel, the speed of the cooling air is approximately equal to that of a high-temperature main flow speed, so that the temperature gradient dissipation is inhibited, and a flow field with an obvious profile and uneven temperature is formed. The stepping motors matched with the three parts of each coupling blade in the device are controlled by an automatic control terminal program, the functions of all the blades can be driven simultaneously, the control terminal stores the displacement and the cooling air flow temperature data required by each coupling blade mechanism in the required surplus rotation angle and temperature distribution coupling distortion mode, and then adjusting signals are transmitted to the stepping motors and the cooling air supply system for real-time adjustment according to the required distortion flow field mode. The adjusting mechanism for driving the blades to rotate is arranged outside the casing and is connected with the coupling complementary rotation blades through the driving mechanism, so that mutual influence of the adjusting device and a flow field in the casing is avoided.
Compared with the prior art, the invention has the beneficial effects that:
the invention designs an air inlet surplus rotation angle and temperature distribution coupled transient adjustable distortion generating device, which aims to instantly generate a complex extreme coupling flow field with non-uniform distribution of temperature and surplus rotation angle existing at an inlet of an actual afterburner at the maneuvering speed of a real engine so as to solve the problems existing in the traditional distortion generating device.
The device disclosed by the invention controls the torsion angle of the front edge of the blade, the installation angle of the blade and the torsion angle of each tail edge in the wingspan direction of the blade through programs without interrupting a test, and simultaneously solves the problem that the coupled air inlet flow field with complicated extreme residual rotation angle and temperature which are unevenly distributed along the radial direction and the circumferential direction under the real working condition of an afterburner inlet cannot be generated in real time at present by adjusting the quantity and the temperature of cold air released from the tail edge of the blade.
The transient adjustable distortion generating device for coupling the air inlet surplus rotation angle and the temperature distribution realizes the coupling simulation of the complex extreme surplus rotation angle and the temperature distribution distortion in an actual engine system on the premise of not performing order reduction approximation, and the high-temperature area of a flow field is equal to the number of blades, so that the test requirement of researching the transient surplus rotation angle and the temperature distribution coupling distortion characteristic in the future is met.
Each coupling blade is provided with six independent driving mechanisms, a real-time control stepping motor is set through a program, the installation angle and the torsion angle of different coupling blades can be independently adjusted in real time through an adjusting mechanism, the reproduction capability of the coupling blade with high degree of freedom to a high-despinning angle area is enhanced, order reduction approximation is not needed to be carried out on the outline of a distorted flow field, and a target despinning distorted inlet flow field can be obtained on a time-space scale under the condition of no stop.
Different temperature gradient distributions are obtained by changing the temperature and the flow of cooling gas, the tail edge of the coupled blade can be twisted to expand the range of a flow field profile mode capable of generating uneven temperature, and meanwhile, the cooling gas flowing in the blade enables the generating device to simulate a temperature distortion flow field under the high-temperature working condition of an actual afterburner so as to research the performance of the afterburner at low cost under the safety condition before flight test.
Drawings
FIG. 1 is a schematic structural diagram of a transient adjustable distortion generating device with coupled intake air swirl angle and temperature distribution;
FIG. 2 is a schematic structural diagram of coupled blades of a transient adjustable distortion generating device coupled with an air inlet surplus rotation angle and temperature distribution;
FIG. 3 is a partially enlarged schematic view of an adjustment mechanism of the transient adjustable distortion generating device coupled with an air intake over-rotation angle and a temperature distribution;
FIG. 4 is an internal cross-sectional view of a coupled blade of the transient adjustable distortion generating device with coupled inlet swirl angle and temperature;
FIG. 5 illustrates three exemplary torsional configuration changes for the coupling blade;
wherein, 1-annular casing, 2-coupled blade, 3-blade leading edge, 4-blade body, 5-blade trailing edge, 6-first cylindrical rotating mechanism, 7-second cylindrical rotating mechanism, 8-hollow cylindrical rotating mechanism, 9-first arc opening, 10-circular opening, 11-second arc opening, 12-arc sealing piece, 13-rectangular flow channel, 14-hollow cylindrical mechanism flow channel, 5-1-first trailing edge section, 5-2-second trailing edge section, 5-3-third trailing edge section, 5-4-fourth trailing edge section, 8-1-first hollow cylindrical rotating mechanism, 8-2-second hollow cylindrical rotating mechanism, 8-3-third hollow cylindrical rotating mechanism, 8-4-fourth hollow cylindrical rotating mechanism, 13-1-first rectangular flow channel, 13-2-second rectangular flow channel, 13-3-third rectangular flow channel, 13-4-fourth rectangular flow channel, 14-1-first hollow cylindrical mechanism flow channel, 14-2-second hollow cylindrical mechanism flow channel, 14-3-third hollow cylindrical mechanism flow channel, and 14-4-fourth hollow cylindrical mechanism flow channel.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention more clear, the present invention is further described in detail by the following examples. It should be noted that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 shows a transient adjustable distortion generating device for generating coupling of a complementary rotation angle and temperature distribution under a real air inlet test condition of an afterburner, which comprises an annular casing 1 and a plurality of coupling blades 2 with six independent driving mechanisms, wherein the coupling blades 2 are arranged in the casing. In the embodiment, the number of the coupling blades is 9, the geometric profile of the blades is J5012, the blades are uniformly arranged at intervals in the circumferential direction of the casing, and in an actual test, each parameter and the profile of the blades can be adjusted according to actual needs.
As shown in fig. 2 to 4, according to the required distortion flow field mode, the control terminal retrieves required displacement and cooling airflow temperature data of each coupling blade mechanism in the required complementary rotation angle and temperature distribution coupling distortion mode, and controls the stepping motor and the cooling air supply system to independently adjust six independent driving mechanisms of different coupling blades 2 in real time, so that the installation angle, the torsion angle and the released cooling airflow temperature of each coupling blade are changed in real time. The rotating angle of the front edge 3 of the coupling blade and the adjustable installation angle range of the main body 4 of the coupling blade are respectively limited by the arc length of a first arc-shaped opening 9 and a second arc-shaped opening 11 of the casing, the angle of the second arc-shaped opening 11 in the embodiment is 25 degrees, the requirement of simulating the maximum surplus rotation angle of an inlet of an actual integrated afterburner is met, and when the installation angle of the blade is adjusted to the maximum limit, the other end of an arc-shaped sealing sheet 12 just covers the tail end of a groove, so that the sealing effect of the casing is maintained. Different temperature gradient distribution is obtained by distributing the temperature and the flow of cooling air flowing through the rectangular flow channel 13 in each blade tail edge 5, the coupled blade tail edge 5 is similar to a cooling air nozzle, the range of the profile mode of a flow field with uneven temperature can be enlarged by twisting, and meanwhile, the cooling air flowing in the blades enables a generating device to simulate a temperature distortion flow field under the high-temperature working condition of an actual afterburner.
When only simulating a temperature distortion flow field, six coupling blades can be kept to be independently driven to keep the rotation angle zero, the balance rotation angle uniformity of the flow field has almost no interference effect, as shown in the A configuration in figure 5, cooling air is only supplied, wherein the temperature flow of the cooling air at the tail edge section of each coupling blade can be independently controlled, and then the temperature distortion flow field with an obvious outline is generated. When the afterflow distortion flow field is generated independently, six independent driving mechanisms of different coupling blades are adjusted independently, as shown in a configuration B in fig. 5, air with the same temperature as the main flow can be supplied to the tail edge of the coupling blade, and the temperature gradient in the afterflow distortion flow field is avoided. According to the required transient distortion flow field mode, an adjusting signal can be transmitted to the stepping motor and the cooling gas supply system for instant adjustment without disassembling and replacing the blades, as shown in a C configuration in figure 5, the mode is instantly converted into another mode of coupling distortion of the surplus rotation angle and the temperature distribution, and the transient complex extreme distortion flow field under the actual flight working condition is reproduced.
Therefore, according to the transient adjustable distortion generating device for coupling the air inlet complementary rotation angle and the temperature distribution, the control terminal obtains the required displacement and cooling air flow temperature data of each coupling blade mechanism in the required complementary rotation angle and temperature distribution coupling distortion mode according to the required distortion flow field mode, the stepping motor and the cooling air supply system are controlled in real time to independently adjust six independent driving mechanisms of different coupling blades in real time, and further the installation angle, the torsion angle and the released cooling air flow temperature of each coupling blade are changed in real time, and a complex extreme coupling flow field with the temperature distribution and the complementary rotation angle non-uniform distribution existing at the inlet of an actual afterburner is generated in real time at the speed of real engine maneuvering.
The preferred embodiments of the present invention described above with reference to the accompanying drawings are only for illustrating the embodiments of the present invention and are not to be construed as limiting the aforementioned object of the invention and the contents and scope of the appended claims, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention still fall within the technical and claim protection scope of the present invention.
Claims (7)
1. The transient adjustable distortion generating device is characterized by comprising an annular casing (1), wherein a plurality of coupling blades (2) are arranged in the annular casing (1); the coupling blade (2) is divided into three parts, including a blade front edge (3), a blade main body (4) and a blade tail edge (5) which is obliquely arranged; the blade tail edge (5) can be twisted;
the blade tail edge (5) is divided into four tail edge sections, namely a first tail edge section (5-1), a second tail edge section (5-2), a third tail edge section (5-3) and a fourth tail edge section (5-4); the tail edge sections have no interaction; the hollow cylindrical rotating mechanism (8) comprises a first hollow cylindrical rotating mechanism (8-1), a second hollow cylindrical rotating mechanism (8-2), a third hollow cylindrical rotating mechanism (8-3) and a fourth hollow cylindrical rotating mechanism (8-4); the first tail edge section (5-1), the second tail edge section (5-2), the third tail edge section (5-3) and the fourth tail edge section (5-4) are respectively welded with the first hollow cylindrical rotating mechanism (8-1), the second hollow cylindrical rotating mechanism (8-2), the third hollow cylindrical rotating mechanism (8-3) and the fourth hollow cylindrical rotating mechanism (8-4);
the coupling blade is characterized in that the first hollow cylindrical rotating mechanism (8-1), the second hollow cylindrical rotating mechanism (8-2), the third hollow cylindrical rotating mechanism (8-3) and the fourth hollow cylindrical rotating mechanism (8-4) are respectively connected with a stepping motor through four second arc-shaped openings (11) penetrating through an external casing (1), and output adjusting signals through a set program to drive the hollow cylindrical rotating mechanism (8) to circumferentially rotate within a range of +/-30 degrees along the central line of the second arc-shaped openings (11), so that the angle of the tail edge (5) of the coupling blade can be adjusted in real time along the radial direction.
2. The transient adjustable distortion generating device for coupling the air inlet swirl angle and the temperature distribution is characterized in that a rectangular flow channel (13) is arranged inside the blade tail edge (5); a hollow cylindrical mechanism flow channel (14) is arranged in the hollow cylindrical rotating mechanism (8); specifically, the centers of the first tail edge section (5-1), the second tail edge section (5-2), the third tail edge section (5-3) and the fourth tail edge section (5-4) are respectively and correspondingly provided with a first rectangular flow channel (13-1), a second rectangular flow channel (13-2), a third rectangular flow channel (13-3) and a fourth rectangular flow channel (13-4);
the center of the first hollow cylindrical rotating mechanism (8-1), the center of the second hollow cylindrical rotating mechanism (8-2), the center of the third hollow cylindrical rotating mechanism (8-3) and the center of the fourth hollow cylindrical rotating mechanism (8-4) are respectively and correspondingly provided with a first hollow cylindrical mechanism flow channel (14-1), a second hollow cylindrical mechanism flow channel (14-2), a third hollow cylindrical mechanism flow channel (14-3) and a fourth hollow cylindrical mechanism flow channel (14-4).
3. The transient adjustable distortion generating device for coupling the intake swirl angle and the temperature distribution according to claim 2, it is characterized in that the first rectangular flow channel (13-1), the second rectangular flow channel (13-2), the third rectangular flow channel (13-3), the fourth rectangular flow channel (13-4) are correspondingly connected with the first hollow cylindrical mechanism flow channel (14-1), the second hollow cylindrical mechanism flow channel (14-2), the third hollow cylindrical mechanism flow channel (14-3) and the fourth hollow cylindrical mechanism flow channel (14-4), the cooling air with adjustable flow and temperature is provided for each hollow cylindrical mechanism flow channel and is released through each tail edge rectangular flow channel, the speed of the cooling air is approximately equal to the high-temperature main flow speed so as to inhibit the temperature gradient dissipation, and then a flow field with obvious profile and uneven temperature is formed at the tail edge of the blade.
4. The transient adjustable distortion generating device for coupling the air inlet surplus rotation angle and the temperature distribution is characterized in that a first cylindrical rotating mechanism (6), a second cylindrical rotating mechanism (7) and a hollow cylindrical rotating mechanism (8) are welded at the end part of the blade leading edge (3);
the first cylindrical rotating mechanism (6) is hinged with the blade body (4) at the same time; a first arc-shaped opening (9) is formed in the joint of the first cylindrical rotating mechanism (6) and the blade front edge (3), the first cylindrical rotating mechanism (6) penetrates through the external casing (1) through the first arc-shaped opening (9) to be connected with the stepping motor, and an adjusting signal is output through a set program to drive the first cylindrical rotating mechanism (6) to rotate circumferentially along the center line of the first arc-shaped opening (9), so that the blade front edge (3) of the coupling blade can be adjusted within a +/-15-degree range in real time;
the novel coupling blade is characterized in that the second cylindrical rotating mechanism (7) is welded with the blade main body (4) at the same time, a circular opening (10) is formed in the joint of the second cylindrical rotating mechanism (7) and the blade front edge (3), the second cylindrical rotating mechanism (7) is connected with the stepping motor through the circular opening (10), and the adjustment signal is output through a set program to drive the second cylindrical rotating mechanism (7) to rotate circumferentially along the fixed shaft, so that the real-time adjustment of the mounting angle of the coupling blade within the range of +/-25 degrees is realized.
5. The transient adjustable distortion generating device for coupling the air inlet swirl angle and the temperature distribution according to claim 1, wherein the blade leading edge (3), the blade main body (4), the first trailing edge section (5-1), the second trailing edge section (5-2), the third trailing edge section (5-3) and the fourth trailing edge section (5-4) of the coupling blade (2) form six independent driving mechanisms, so that the torsion angle of the coupling blade (2) can be adjusted in the radial direction.
6. The transient adjustable distortion generator of an inlet swirl angle and temperature distribution coupling of claim 5, characterized in that the coupling blades (2) are tapered in plan view to maintain a constant consistency from blade root to blade tip, each blade assembly being removable for maintenance or replacement.
7. The transient adjustable distortion generating device for coupling the intake air swirl angle and the temperature distribution is characterized in that the first arc-shaped opening (9) and the second arc-shaped opening (11) both use an arc-shaped sealing sheet (12) as a sealing device, and the angle of the arc-shaped sealing sheet (12) is more than twice of the angle of the first arc-shaped opening (9) and the second arc-shaped opening (11); graphite packing is used for sealing between the circular opening (10) and the second cylindrical rotating mechanism (7) as a sealing measure.
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