CN115791084A - Propeller unsteady force test power meter and cavitation water tunnel experiment system - Google Patents
Propeller unsteady force test power meter and cavitation water tunnel experiment system Download PDFInfo
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- CN115791084A CN115791084A CN202211500272.9A CN202211500272A CN115791084A CN 115791084 A CN115791084 A CN 115791084A CN 202211500272 A CN202211500272 A CN 202211500272A CN 115791084 A CN115791084 A CN 115791084A
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Abstract
The invention relates to a propeller unsteady force test power instrument and a vacuole water tunnel experiment system, wherein the power instrument comprises a sealed shell, an underwater motor, a power shaft, a propeller model and an unsteady force measuring sensor, wherein the underwater motor, the power shaft and the unsteady force measuring sensor are positioned in the sealed shell, the propeller model is positioned outside the sealed shell, the power shaft comprises a front shaft and a rear shaft, the propeller model is arranged on the front shaft, the unsteady force measuring sensor comprises a thrust torque sensor which is arranged between the rear shaft and the front shaft and positioned in the sealed shell, the test power instrument further comprises a first cable connected with the thrust torque sensor, and the propeller unsteady force test power instrument further comprises a data acquisition device which is positioned outside the sealed shell. The propeller unsteady force test power instrument can overcome the defects that the existing test device cannot test the propeller unsteady force, can not be matched with a cavitation bubble water tunnel for testing, and can be separated from the cavitation bubble water tunnel for testing independently.
Description
Technical Field
The invention relates to the field of ship experiments, in particular to a propeller unsteady force test dynamometer and a cavitation water tunnel experiment system.
Background
The performance of the propeller is tested by an open water experiment and a cavity water tunnel experiment, wherein a propeller model is placed in a uniform water flow when the open water experiment is carried out, so as to test the performance of the propeller in the uniform water flow. The conventional open-water propeller dynamometer is generally suitable for open water tests in a normal-pressure environment, in the tests, a motor is arranged on water, an underwater propeller is driven through a right-angle transmission mechanism, the number of the transmission mechanisms is large, noise is high, and meanwhile, only constant values of propeller thrust and torque can be tested.
In the cavitation water tunnel experiment, the propeller unsteady force test power instrument is placed in a pipeline, and the pressure of water flow in the pipeline can be increased and reduced to realize the simulation of different water depths and cavitation numbers, so that the test can be realized. The conventional propeller cavitation water tunnel equipment only tests the steady values of propeller thrust and torque, which is the basis of hydrodynamic working condition setting of cavitation test. However, with the continuous and deep research, the vibration reduction and noise reduction needs to be further improved, the performance of the propeller and the multi-component force and moment of a single blade in the non-uniform flow behind the ship are gradually concerned, and no matter in open water experiments or cavity water tunnel experiments, the related performance cannot be tested by the conventional propeller constant force test power instrument.
Disclosure of Invention
The invention provides a propeller unsteady force test power instrument which can overcome the defects that the existing test device can not test the propeller unsteady force, can not be matched with a cavitation bubble water hole for testing, and can be separated from the cavitation bubble water hole for testing independently.
The propeller unsteady force test power instrument can be installed in a cavity water tunnel for experiment and also can be detached from the cavity water tunnel for independent experiment, and comprises a sealed shell, an underwater motor, a power shaft driven by the underwater motor to rotate, a propeller model and an unsteady force measuring sensor, wherein the propeller model is fixed at one end of the power shaft, which is far away from the motor, the underwater motor, the power shaft and the unsteady force measuring sensor are positioned in the sealed shell, the propeller model is positioned outside the sealed shell, the power shaft comprises a front shaft and a rear shaft, the front shaft is provided with the propeller model, the rear axle pass through the shaft coupling with the output shaft of motor under water, simultaneously, the rear axle pass through thrust bearing install in the sealed casing, unsteady force cell sensor is including installing the rear axle with just be located between the front axle thrust torque sensor in the sealed casing, test power appearance still include with the first cable that thrust torque sensor connects, screw unsteady force test power appearance still is including being located the outer data acquisition device of sealed casing, the rear axle is equipped with the sliding ring, first data cable pass through behind the sliding ring with data acquisition device connects.
Preferably, the sealing shell is streamline as a whole.
Preferably, the propeller unsteady force test dynamometer further comprises a wing-shaped support, one end of the wing-shaped support is connected with the outer wall of the sealed shell, the other end of the wing-shaped support is detachably connected with an installation cover plate of the cavity water hole, and the first data cable is connected with the data acquisition device after passing through the slip ring and the wing-shaped support in sequence.
Preferably, the propeller unsteady force test dynamometer further comprises a rear support, one end of the rear support is detachably connected with the mounting cover plate of the cavity water tunnel, and the other end of the rear support is connected with the outer wall of the sealed shell.
Preferably, the underwater motor is a brushless direct current motor, the propeller unsteady force test power meter further comprises a second data cable and a control device, one end of the second data cable is connected with the underwater motor, the control device is located outside the sealed shell, the rear support is tubular, and the other end of the second data cable penetrates through the pipe of the rear support and then is connected with the control device to supply power to the underwater motor, so that the rotation speed of the underwater motor can be adjusted under the control of the control device.
Preferably, the propeller model comprises a propeller hub and a plurality of blades arranged outside the propeller hub, the unsteady force measuring sensor further comprises a single-blade-root multi-component sensor arranged in the propeller hub and used for testing the forces and torques in multiple directions borne by one of the blades, the propeller unsteady force testing power meter further comprises a third data cable, one end of the third data cable is connected with the single-blade-root multi-component sensor, and the other end of the third data cable is connected with the data acquisition device after sequentially penetrating through the slip ring and the wing-shaped support.
Preferably, the third data cable is embedded in the power shaft, a jack connected with the third data cable is arranged at the front end of the front shaft of the power shaft, and the single-blade-root multi-component sensor is inserted into the jack.
Preferably, a transparent window is arranged at the front end and/or the rear end of the sealed shell, and silica gel which can change color after absorbing water is arranged in the position, corresponding to the transparent window, in the sealed shell.
The invention also provides a cavitation water tunnel experiment system which comprises cavitation water tunnel equipment and the propeller unsteady force testing power instrument, wherein the cavitation water tunnel equipment comprises a cylindrical tunnel body, and the propeller unsteady force testing power instrument is detachably arranged in the tunnel body.
Preferably, the cavitation water tunnel equipment further comprises a water outer motor located outside the tunnel body and a propeller model located in the tunnel body, the water outer motor drives the propeller model of the cavitation water tunnel through a power shaft, the propeller model of the cavitation water tunnel equipment forms a first propeller of a contra-rotating propeller, the propeller model of the propeller unsteady force testing power instrument forms a second propeller of the contra-rotating propeller, and the second propeller is coaxial with the first propeller and opposite in rotating direction.
Preferably, the power shaft of the cavity water tunnel equipment comprises a front shaft and a rear shaft, a thrust torque sensor is installed between the front shaft and the rear shaft of the cavity water tunnel equipment, the first propeller is installed on the front shaft of the cavity water tunnel equipment and can synchronously rotate with the first propeller, the first propeller comprises a propeller hub and a plurality of blades arranged outside the propeller hub, and a single-blade-root multi-component sensor used for testing the force and the torque of one blade in multiple directions is arranged in the propeller hub of the first propeller.
Preferably, the first and second propellers are two propellers of a contra-rotating propeller pump.
Compared with the prior art, the invention has the following beneficial effects:
1. the propeller unsteady force test power instrument provided by the invention is provided with a complete driving system, a built-in sensor and a related cable to form an independent test system, when the driving system drives a propeller model, the propeller model rotates to generate thrust which is transmitted to a thrust torque sensor through a front shaft, and the sensor is an unsteady force test sensor which can measure the integral unsteady force and unsteady force of the propeller. Motor, power shaft and thrust torque sensor all lie in sealed housing under water, can install and carry out the cavity water tunnel experiment in the cavity water tunnel, have increased the equipment of the unsteady power of test screw in the cavity water tunnel simply conveniently, have compensatied conventional water tunnel and can only measure the not enough of screw unsteady power from taking drive arrangement. In addition, the propeller unsteady force test power instrument is matched with the existing power instrument of the cavity water tunnel, and can also carry out contra-rotating propeller or pump test of any rotating speed ratio of front propeller to rear propeller in the cavity water tunnel. In addition, the propeller unsteady force test power meter can be integrally disassembled from the cavity water tunnel for independent experiment.
2. The first propeller and the second propeller of the cavitation water tunnel experiment system are driven by different driving mechanisms, and the rotating speed of the second propeller can be adjusted at will according to needs, so that different rotating speed ratios of the two propellers can be obtained, and the stress conditions of the two propellers under different speed ratio conditions can be tested. The stress condition of the contra-rotating propeller pump can be tested.
Drawings
Fig. 1 is a schematic structural view illustrating a propeller unsteady force test dynamometer according to an embodiment of the present invention installed together with an installation cover plate of a cavitation water tunnel.
Fig. 2 is a schematic structural view of a propeller unsteady force test dynamometer according to an embodiment of the present invention, after a propeller model is removed and the propeller model is detached from an installation cover plate of a cavitation water tunnel.
Fig. 3 is a schematic structural diagram of a cavitation water tunnel experiment system according to an embodiment of the present invention.
FIG. 4 is a schematic structural diagram of a cavitation experiment system according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a propeller unsteady force test dynamometer according to another embodiment of the present invention, which performs a performance test on a contra-rotating propeller pump.
Reference numerals
1, sealing the shell, 11, and making the transparent window;
2 power shaft, 21 front shaft, 211 connecting key, 212 bearing, 213 jack, 22 rear shaft, 221 slip ring, 222 thrust bearing, 23 thrust torque sensor and 24 coupler;
3, a propeller model, 31 a propeller hub, 32 blades and 33 single-blade root multi-component sensors;
4, an underwater motor;
5, wing-shaped support;
6, rear support;
7, mounting a cover plate;
8, a hole body;
9 contra-rotating propeller pumps;
a, a first propeller;
b, a second propeller.
Detailed Description
The propeller unsteady force test power meter provided by the invention can be installed in a cavity water tunnel for experiment, and also can be detached from the cavity water tunnel for independent experiment. As shown in fig. 1 and 2, the propeller unsteady force test dynamometer of the present embodiment includes a sealed housing 1, an underwater motor 4, a power shaft 2 driven by the underwater motor 4 to rotate, a propeller model 3 fixed at an end of the power shaft 2 far from the motor, and an unsteady force load cell, where the underwater motor 4, the power shaft 2, and the unsteady force load cell are located in the sealed housing 1, the propeller model 3 includes a hub 31 and a plurality of blades 32 arranged outside the hub 31, the hub 31 and the blades 32 are located outside the sealed housing 1, the power shaft 2 includes a front shaft 21 and a rear shaft 22, the front shaft 21 is mounted with the propeller model 3, the front shaft 21 is mounted near the propeller model 3 via a bearing 212 to an inner wall of the sealed housing 1, the rear shaft 22 is connected to an output shaft of the underwater motor 4 via a coupling 24, meanwhile, the rear shaft 22 is mounted to the inner wall of the sealed housing 1 via a thrust bearing 222, the unsteady force load cell includes a torque sensor (not shown in the figure) mounted between the rear shaft 22 and the front shaft 21, the sealed housing 1 is located inside the sealed housing 1, and the sealed housing 23 also includes a first data acquisition device (a first data acquisition device for acquiring propeller unsteady force data and a second data acquisition device (not shown in the sealed housing 1). The rear shaft 22 is provided with a slip ring 221, and the first data cable is connected with the data acquisition device through the slip ring 221 to realize data transmission between the thrust torque sensor 23 and the data acquisition device.
The propeller unsteady force test power instrument provided by the invention is provided with a complete driving system, a built-in sensor and related cables to form an independent test system, when an underwater motor 4 drives a propeller model 3 through a power shaft 2, the propeller model 3 rotates to generate thrust, and the thrust is transmitted to a thrust torque sensor 23 through a front shaft 21 of the power shaft 2, and the sensor is an unsteady force sensor and can measure the integral unsteady force and unsteady force of a propeller. Motor 4, power shaft 2 and thrust torque sensor 23 all are located seal housing 1 under water, and whole dynamometer can install and carry out the cavitation water tunnel experiment in the cavitation water tunnel, has increased the equipment of the unsteady power of test screw in the cavitation water tunnel simply conveniently, has compensatied conventional water tunnel and has taken drive arrangement from only measuring the not enough of screw unsteady power.
In addition, the propeller unsteady force test power meter of the invention is matched with the existing power meter of the cavity water tunnel, and can also carry out contra-rotating propeller or contra-rotating propeller pump test of any rotation speed ratio of front propeller and rear propeller in the cavity water tunnel, and the specific mode is described in detail when introducing a cavity water tunnel experiment system. The rotating speed ratio of the front propeller and the rear propeller of the existing rotating-propeller testing instrument is fixed, and the test requirement of any rotating speed ratio cannot be realized. In addition, as shown in fig. 2, the propeller unsteady force test dynamometer of the present invention can be integrally disassembled from the cavity water tunnel for independent experiment.
As shown in fig. 1 and 2, the sealed casing 1 is streamline as a whole, so that the influence of water flow can be reduced, and as shown in fig. 3, even if the sealed casing is installed in a flow field (cavity) with a small cross section, more accurate test data can be obtained.
The propeller unsteady force test power meter further comprises a wing-shaped support 5, wherein the wing-shaped support 5 comprises a plate parallel to the axial direction of the power shaft 2, one end of the wing-shaped support 5 is connected with the outer wall of the sealed shell 1, and the other end of the wing-shaped support is detachably connected with an installation cover plate 7 of the cavitation bubble water hole. The first data cable is connected with the data acquisition device after passing through the slip ring 221 and the wing-shaped support 5 in sequence. The plate of the wing support 5 is parallel to the direction of the water flow during testing, minimizing the effect on the water flow and thus making the test more accurate. The propeller unsteady force test power instrument is detachably connected with the mounting cover plate 7 of the cavity water tunnel, so that the propeller unsteady force test power instrument can be conveniently mounted in the cavity water tunnel or dismounted from the cavity water tunnel.
The propeller unsteady force testing power instrument further comprises a rear support 6, one end of the rear support 6 is detachably connected with an installation cover plate 7 of the cavity water hole, the other end of the rear support is connected with the outer wall of the sealing shell 1, and the rear support 6 can strengthen the connection between the propeller unsteady force testing power instrument and the cavity water hole.
The underwater motor 4 is a brushless direct current motor, the propeller unsteady force testing power meter further comprises a second data cable (not shown in the figure) and a control device (not shown in the figure), wherein one end of the second data cable is connected with the underwater motor 4, the control device is positioned outside the sealing shell 1, and when the power meter is used for open water experiments, the control device is positioned on the water surface. When the power instrument is installed in the cavity water hole for cavity experiment, the control device is positioned outside the cavity water hole. Preferably, the rear support 6 is tubular, and the other end of the second data cable passes through the inside of the rear support 6 along the axial direction of the pipe and then is connected with the control device, so that the rotation speed of the underwater motor 4 can be adjusted under the control of the control device. The rotating speed can be adjusted at will according to the needs, thereby providing more test conditions for the test of the abnormal force. The rotating speed of the motor can be fed back to the control device through the second data line, and the underwater motor 4 is powered.
The unsteady force load cell also includes a single-blade root multi-component sensor 33 disposed within the hub 31 for testing the multi-directional forces and torques experienced by one of the blades 32. The propeller unsteady force test dynamometer further comprises a third data cable (not shown in the figure), one end of the third data cable is connected with the single-propeller-root multi-component sensor 33, and the other end of the third data cable penetrates through the slip ring 221 and the wing-shaped support 5 in sequence and then is connected with the data acquisition device. The forces and torques in multiple directions experienced by a single blade 32 can be tested by the single-blade root multi-component sensor 33.
In the present embodiment, a connection key 211 is provided at the front end of the front shaft 21, and the propeller model 3 is connected to the front shaft 21 through the connection key 211. The third data cable is pre-buried inside the power shaft 2, the front end part of the front shaft 21 of the power shaft 2 is provided with a jack 213 connected with the third data cable, and the single-blade-root multi-component sensor 33 is spliced with the jack 213 to realize data transmission. This configuration allows the third data cable to be more easily connected to and disconnected from the single-bladed root multi-component sensor 33.
The front end of the sealed shell body 1 is provided with a transparent window 11, the transparent window 11 can be made of organic glass materials and can be shaped like a hemisphere, and the position in the sealed shell body 1 corresponding to the transparent window 11 is provided with silica gel which can change color after absorbing water. If the silica gel discolors, the condition of sealing failure can be visually displayed.
The invention also provides a cavitation water tunnel experiment system, one embodiment of which is shown in fig. 3, the cavitation water tunnel experiment system comprises cavitation water tunnel equipment and the propeller unsteady force test dynamometer, wherein the cavitation water tunnel equipment comprises a cylindrical tunnel body 8, and the propeller unsteady force test dynamometer is detachably arranged in the tunnel body 8.
Fig. 4 shows another embodiment of the cavitation tunnel experiment system, in which the cavitation tunnel experiment system comprises a cavitation tunnel device comprising a cylindrical tunnel body 8 and a propeller unsteady force test dynamometer as described above, the propeller unsteady force test dynamometer being detachably mounted in the tunnel body 8. The cavitation water tunnel equipment further comprises a water outer motor located outside the tunnel body 8 and a propeller model located in the tunnel body 8 and driven to rotate by the water outer motor, the water outer motor drives the propeller model of the cavitation water tunnel equipment to rotate through a power shaft, the propeller model of the cavitation water tunnel equipment forms a first propeller A of a contra-rotating propeller, the test power instrument is installed in the tunnel body 8, the propeller model of the propeller unsteady force test power instrument forms a second propeller B of the contra-rotating propeller, the second propeller B is coaxial with the first propeller A and opposite in rotating direction, and the coaxiality of the second propeller B refers to that the propeller model is installed on the same shaft and the rotating shaft center of the second propeller B is on the same axis.
The first propeller A and the second propeller B of the cavitation water tunnel experiment system are driven by different driving mechanisms, and the rotating speed of the second propeller B can be adjusted at will according to needs, so that different rotating speed ratios of the two propellers can be obtained, and the stress conditions of the two propellers under different speed ratio conditions can be tested.
The power shaft of the cavitation water tunnel equipment also comprises a front shaft and a rear shaft (not shown in the figure), a thrust torque sensor (not shown in the figure) is installed between the front shaft and the rear shaft of the cavitation water tunnel equipment, the thrust torque sensor can adopt a constant force measuring sensor and can also adopt an unsteady force measuring sensor, the first propeller A comprises a propeller hub and a plurality of blades arranged outside the propeller hub, a single-propeller-root multi-component sensor used for testing the force and the torque of one of the blades in multiple directions is arranged in the propeller hub of the first propeller A, and the single-propeller-root multi-component sensor can adopt a constant force measuring sensor and can also adopt an unsteady force measuring sensor. Therefore, the thrust and the torque of the two propellers under different speed measurement ratios and the multi-component of a single blade can be tested, and a steady force test and an unsteady force test can be carried out.
Fig. 5 shows another embodiment of the cavitation tunnel experiment system, which has the following features in addition to all the structures of the embodiment shown in fig. 4, wherein the first propeller a and the second propeller B are two propellers of the contra-rotating propeller pump 9. The cavitation water tunnel experiment system can test the stress condition of the contra-rotating propeller pump 9.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the invention.
Claims (12)
1. The utility model provides a propeller unsteady force test power appearance, its characterized in that, the mountable is experimented in the vacuole water hole, also can follow the vacuole water hole and tear out and experiment alone out, including sealed housing, motor under water, by motor drive and rotatory power shaft under water, fix the power shaft is kept away from the propeller model and the unsteady force cell sensor of motor one end, motor, power shaft, unsteady force cell sensor under water are located in the sealed housing, the propeller model is located outside the sealed housing, the power shaft includes front axle and rear axle, the front axle is installed the propeller model, the rear axle pass through the shaft coupling with the output shaft of motor under water, simultaneously, the rear axle pass through thrust bearing install in the sealed housing, unsteady force cell sensor including install between the rear axle with the front axle and be located torque sensor in the sealed housing, test power appearance still include with the first cable that thrust torque sensor is connected, propeller unsteady force test power appearance still includes the data acquisition device that is located outside the sealed housing, the rear axle is equipped with the slip ring, first data acquisition device passes through the slip ring and is connected with the rear data acquisition device.
2. The propeller unsteady force test dynamometer of claim 1, wherein the sealed housing is streamlined as a whole.
3. The propeller unsteady force test dynamometer of claim 2, further comprising a wing-shaped support, wherein one end of the wing-shaped support is connected with an outer wall of the sealed housing, the other end of the wing-shaped support is detachably connected with a mounting cover plate of the cavitation water tunnel, and the first data cable is connected with the data acquisition device after passing through the slip ring and the wing-shaped support in sequence.
4. The propeller unsteady force test dynamometer of claim 3, further comprising a rear support, wherein one end of the rear support is detachably connected with a mounting cover plate of the cavitation water hole, and the other end of the rear support is connected with an outer wall of the sealed housing.
5. The propeller unsteady force test power meter according to claim 4, wherein the underwater motor is a brushless direct current motor, the propeller unsteady force test power meter further comprises a second data cable and a control device, the second data cable is connected with the underwater motor at one end, the control device is located outside the sealed shell, the rear support is tubular, and the other end of the second data cable penetrates through the tube of the rear support and then is connected with the control device to supply power to the underwater motor, so that the underwater motor can adjust the rotating speed under the control of the control device.
6. The propeller unsteady force test dynamometer of claim 1, wherein the propeller model includes a hub and a plurality of blades disposed outside the hub, the unsteady force load cell further includes a single-blade root multi-component sensor disposed in the hub for testing forces and torques in multiple directions received by one of the blades, the propeller unsteady force test dynamometer further includes a third data cable, one end of the third data cable is connected to the single-blade root multi-component sensor, and the other end of the third data cable is connected to a data acquisition device after passing through a slip ring and an airfoil support in sequence.
7. The propeller unsteady force test dynamometer of claim 6, wherein the third data cable is pre-buried in the power shaft, a jack connected with the third data cable is arranged at a front end of a front shaft of the power shaft, and the single-blade-root multi-component sensor is plugged with the jack.
8. The propeller unsteady force test power meter according to claim 1, wherein a transparent window is arranged at the front end and/or the rear end of the sealed shell, and silica gel which can change color after absorbing water is arranged in the position corresponding to the transparent window in the sealed shell.
9. A cavitation tunnel experiment system comprising a cavitation tunnel device and a propeller unsteady force test dynamometer according to any one of claims 1-8, the cavitation tunnel device comprising a cylindrical tunnel body in which the propeller unsteady force test dynamometer is removably mounted.
10. The cavitation water tunnel experiment system of claim 9, wherein the cavitation water tunnel equipment further comprises an out-of-water motor located outside the tunnel body and a propeller model located inside the tunnel body, the out-of-water motor drives the propeller model of the cavitation water tunnel through a power shaft, the propeller model of the cavitation water tunnel equipment forms a first propeller of a contra-rotating propeller, the propeller model of the propeller unsteady force testing power instrument forms a second propeller of the contra-rotating propeller, and the second propeller is coaxial with the first propeller and has opposite rotation direction.
11. The cavitation tunnel experiment system of claim 10, wherein the power shaft of the cavitation tunnel equipment comprises a front shaft and a rear shaft, a thrust torque sensor is installed between the front shaft and the rear shaft of the cavitation tunnel equipment, the first propeller is installed on the front shaft of the cavitation tunnel equipment and can rotate synchronously with the first propeller, the first propeller comprises a hub and a plurality of blades arranged outside the hub, and a single-blade multi-component sensor for testing multi-directional forces and blade root torques to which one of the blades is subjected is arranged in the hub of the first propeller.
12. The cavitation tunnel experiment system of claim 10 or 11, wherein the first propeller and the second propeller are two propellers of a contra-rotating propeller pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211500272.9A CN115791084A (en) | 2022-11-28 | 2022-11-28 | Propeller unsteady force test power meter and cavitation water tunnel experiment system |
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| CN202211500272.9A CN115791084A (en) | 2022-11-28 | 2022-11-28 | Propeller unsteady force test power meter and cavitation water tunnel experiment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117405354A (en) * | 2023-12-13 | 2024-01-16 | 中国人民解放军海军工程大学 | Flow excitation resonance suppression method for cavitation water hole corner segment guide vane |
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2022
- 2022-11-28 CN CN202211500272.9A patent/CN115791084A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117405354A (en) * | 2023-12-13 | 2024-01-16 | 中国人民解放军海军工程大学 | Flow excitation resonance suppression method for cavitation water hole corner segment guide vane |
| CN117405354B (en) * | 2023-12-13 | 2024-02-23 | 中国人民解放军海军工程大学 | Flow excitation resonance suppression method for cavitation water hole corner segment guide vane |
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