CN110873647A - Rolling and pitching attitude test bed for micro engine - Google Patents
Rolling and pitching attitude test bed for micro engine Download PDFInfo
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- CN110873647A CN110873647A CN201911332881.6A CN201911332881A CN110873647A CN 110873647 A CN110873647 A CN 110873647A CN 201911332881 A CN201911332881 A CN 201911332881A CN 110873647 A CN110873647 A CN 110873647A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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Abstract
The invention relates to a miniature engine test bed. A rolling and pitching attitude test bed for a micro engine comprises the micro engine and a supporting base and is characterized by further comprising a pitching test bed, wherein the pitching test bed is arranged on the supporting base through a pitching device which drives the pitching test bed to perform pitching and pitching motions; the miniature engine is fixedly arranged on the rolling platform, and the rolling platform is arranged on the pitching test bed through a rolling device for driving the rolling platform to perform rolling motion; the rolling platform is provided with a vibration sensor, a rotating speed sensor and an inclination angle sensor, the tail nozzle temperature sensor sends sensing signals to the electrical control cabinet, and meanwhile, the electrical control cabinet is electrically connected with the pitching device and the rolling device and is used for controlling the pitching device and the rolling device. The invention realizes the accurate control of the pitch angle and the roll angle of the turbojet engine, simulates the real attitude of the miniature turbojet engine in the air, and accurately obtains various technical parameters of the miniature turbojet engine during the roll and pitch.
Description
Technical Field
The invention relates to a miniature engine test bed.
Background
The aircraft engine technology has been known as "pearl on the crown of industrial technology" and the aircraft engine provides the power required by the flight for the aircraft. The rapid development of small aircraft, navigation aircraft and unmanned aircraft puts higher demands on the performance of the micro turbojet engine. At present, most of test beds of the micro turbojet engine are fixed simple test beds, and various real pitching actions of an aircraft in the air cannot be simulated.
The utility model discloses a micro turbine engine test bed has been proposed in utility model patent and the invention patent of publication number CN 208076159U and CN 108387379A, is mainly used for miniature turbojet engine and miniature turboprop engine and carries out the installation test, is applicable to the turbine engine of different grade type through adjusting different supports to can real time monitoring and record data such as the rotational speed of engine, temperature.
The invention patent with the publication number of CN 102507204A provides a movable micro-small turbojet engine test bed, which mainly comprises a test bed frame and a control cabinet and is mainly used for measuring parameters such as the rotating speed, the air inlet flow, the oil consumption rate, the rear temperature and the pressure of an air compressor and the like of a micro turbojet engine.
A turbojet engine test rig is proposed in utility model patent publication No. CN 202693314U. The device is used for testing the thrust, the temperature and the rotating speed of the small turbojet engine, is convenient to move, and can be used for carrying out static test on the engine in various occasions.
With the development of science and technology in recent years, miniature aircrafts are developed rapidly, common small consumer-grade aircrafts mostly use motors as power sources, and quadcopters are the most common, while large models, industrial-grade aircrafts and navigation/unmanned planes mainly use miniature turbine engines as main power sources. The most common power source is the micro turbojet.
The patent publication nos. CN 208076159U, CN 108387379A, CN 102507204 a and CN 202693314U in the above patents both propose a test bed for measuring a micro turbojet engine, which can measure data such as rotation speed, temperature, thrust, etc. of the micro turbojet engine, but the test bed with the structure can only test various technical parameters of the micro turbojet engine in a fixed posture, and cannot simulate the real posture of the aircraft engine in the air, i.e. the rolling and pitching posture. Therefore, various technical parameters of the aircraft engine in the actual attitude in the air cannot be obtained.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a miniature engine attitude test bed which can simulate the real attitude of a miniature engine in rolling and pitching in the air and measure technical parameters of the miniature turbojet engine in the instantaneous attitude.
In order to achieve the purpose, the invention adopts the technical scheme that: a rolling and pitching attitude test bed for a micro engine comprises the micro engine, a supporting base and a pitching test bed, wherein the pitching test bed is arranged on the supporting base through a pitching device which drives the pitching test bed to perform pitching and pitching motions; the miniature engine is fixedly arranged on the rolling platform, the rolling platform is arranged on the pitching test bed through a rolling device which drives the rolling platform to perform rolling motion, and the pull pressure sensor is arranged on the pitching test bed below the rolling device; the micro engine is provided with a pressure sensor, a compressor rear temperature sensor and an oil pipe quick joint arranged on the side of an air inlet at the front end of the micro engine; a vibration sensor, a rotating speed sensor, an inclination angle sensor and a tail nozzle temperature sensor are arranged on the rolling table; the system also comprises a data acquisition card and a flowmeter which are arranged on the lower supporting platform, and the engine kerosene is connected into an oil pipe quick joint of the micro turbojet engine through the flowmeter; the vibration sensor, the rotating speed sensor, the inclination angle sensor, the tail nozzle temperature sensor, the gas compressor rear temperature sensor, the pressure sensor and the pull pressure sensor send sensing signals to the data acquisition card, the sensing signals are converted into digital signals through the data acquisition card and then transmitted to the electrical control cabinet, and the electrical control cabinet is further electrically connected with the pitching device and the rolling device and used for controlling the pitching device and the rolling device.
Furthermore, the pitching device comprises two connecting shafts which are arranged at the bottom of the pitching test bed through a connecting shaft support, and the two connecting shafts are arranged corresponding to the front end and the rear end of the micro-engine; one connecting shaft is movably arranged in a hole in one end of the supporting rib plate in a penetrating manner, and the other end of the supporting rib plate is fixedly arranged on the supporting base; the servo electric cylinder is arranged at the upper end of the servo electric cylinder, and an upper bracket of the servo electric cylinder is movably connected with the other connecting shaft; a servo electric cylinder lower support connecting shaft is fixed on the supporting base through a second connecting shaft support, a servo electric cylinder lower support arranged at the lower end of the servo electric cylinder is movably connected with the lower support connecting shaft, the servo electric cylinder is electrically connected with an electric control cabinet, and the electric control cabinet controls the servo electric cylinder to move up and down so as to realize the pitching and pitching movement of the pitching test bed.
Furthermore, the supporting base comprises an upper supporting plate, a lower supporting plate and a vertical plate, the upper supporting plate is arranged on the upper portion of one side of the vertical plate, the lower supporting plate is arranged on the lower portion of the other side of the vertical plate, the supporting rib plate is fixedly arranged on the upper supporting plate, and the lower support connecting shaft is fixedly arranged on the lower supporting plate.
The rolling device comprises a rolling table, the rolling table is installed on a rolling table support through a supporting rotor, the rolling table support is arranged on the pitching test table and rotates along the axis of the micro-engine, the rolling table is provided with a semi-arc-shaped groove, the section of the rolling table is in a semi-arc shape, the micro-engine is fixedly installed in the semi-arc-shaped groove of the rolling table, a gear is arranged on the outer surface of one end of the rolling table and is meshed with a motor gear, and the motor drives the motor gear to drive the rolling table to rotate; the electric control cabinet controls the motor to realize the rotation of the rolling table.
Furthermore, one end of the rolling table is also provided with a rolling table fixing block which is fixedly arranged on the pitching test bed; and a fixed block bearing is arranged on the fixed block of the rolling table and tightly presses the inner side of the semi-arc-shaped groove of the rolling table.
Furthermore, a slide channel groove is formed in the bottom of the rolling table in the rolling direction of the rolling table, and the pulling pressure sensor is arranged in the slide channel groove.
Further, along the semiarc shape recess both sides of roll-over table are equipped with sensor mounting platform, speed sensor pass through the speed sensor locating plate and install on sensor mounting platform, inclination sensor passes through the bolt fastening on sensor mounting platform, tail nozzle temperature sensor support through two sensor solid fixed rings that correspond to set up on sensor mounting platform and set up the tail nozzle exit at micro-engine.
Furthermore, the micro-engine is fixed in a semi-arc groove of the rolling table through a positioning ring, and the vibration sensor is installed on the positioning ring.
Furthermore, the pressure sensor and the compressor rear temperature sensor are arranged at the compressor outlet section of the micro-engine and symmetrically arranged in the direction vertical to the axis of the micro-engine, and the oil pipe quick connector is arranged on the side of the air inlet at the front end of the micro-engine.
Furthermore, the data acquisition cards at least comprise two data acquisition cards which are respectively arranged on two sides of the supporting base; an industrial personal computer is arranged in the electrical control cabinet, a control console is arranged on the electrical control cabinet, a display and a control console for controlling the pitching device and the rolling device are arranged on the control console, the display and the control console are respectively and electrically connected with the industrial personal computer, and the noise sensor is arranged in the control console; the data collected by the tension pressure sensor, the rotating speed sensor, the vibration sensor, the tail nozzle temperature sensor, the pressure sensor, the rear temperature sensor of the gas compressor and the inclination angle sensor are received by the data acquisition card, converted into digital signals and transmitted to the industrial personal computer, and the digital signals are displayed on a display of the console; and outputting final thrust values at different angles on a display through the pitching angle value of the industrial personal computer and a calculation program.
The invention has the beneficial effects that: the method mainly comprises the steps of testing the micro turbojet engine, testing various technical parameters of the micro turbojet engine when the micro turbojet engine works under different pitching and rolling angles, accurately controlling the angles through the servo motor, the servo electric cylinder and the inclination angle sensor, measuring the thrust of the engine in the axial direction through the thrust sensor, removing the influence of the gravity of the engine through a built-in program, and calculating to obtain the thrust under the pitching attitude. In addition, the temperature, rotating speed and thrust sensors are installed, so that the temperature, rotating speed, pressure and other data of the micro turbojet engine can be collected in real time, various rolling and pitching postures of the micro turbojet engine in the air can be simulated, and the purpose of measuring parameters of the instantaneous pitching angle, rolling angle, thrust, vibration, rotating speed, oil consumption rate, temperature and pressure of a gas compressor, temperature of a tail nozzle and the like of the turbojet engine is achieved. The method really realizes the accurate control of the pitch angle and the roll angle of the turbojet engine, simulates the real attitude of the miniature turbojet engine in the air, accurately obtains various technical parameters of the miniature turbojet engine during the roll and pitch, improves the reliability, and provides data for the delivery inspection of the engine.
Drawings
FIG. 1 is a front isometric view of a roll and pitch attitude test bed of a micro turbojet engine of the present invention;
FIG. 2 is a bottom isometric view of the roll and pitch attitude test bed of the micro turbojet engine of the present invention;
FIG. 3 is a side view of a roll and pitch attitude test bed of the micro turbojet engine of the present invention;
FIG. 4 is a front view of a micro turbojet engine of the present invention;
FIG. 5 is an isometric view of the console of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1: as shown in fig. 1 to 5, a rolling and pitching attitude test bed of a micro-engine comprises a micro-engine 1, a supporting base 14 and a pitching test bed 16, wherein the pitching test bed 16 is installed on the supporting base 14 through a pitching device for driving the pitching test bed 16 to perform pitching and pitching motions; the micro-engine 1 is fixedly arranged on a rolling platform 23, the rolling platform 23 is arranged on a pitching test bed 16 through a rolling device which drives the rolling platform 23 to perform rolling motion, and a tension and pressure sensor 34 is arranged on the pitching test bed 16 below the rolling device; the micro engine 1 is provided with a pressure sensor 22, a compressor rear temperature sensor 30 and an oil pipe quick joint 20 arranged on the side of the air inlet at the front end of the micro engine 1; the rolling platform 23 is provided with a vibration sensor 6, a rotating speed sensor 7, an inclination angle sensor 9 and a tail nozzle temperature sensor 2; the device also comprises a data acquisition card 10 and a flow meter 27 which are arranged on the lower supporting platform 14, and the engine kerosene is connected into an oil pipe quick joint 20 of the micro turbojet engine through the flow meter 27; the vibration sensor 6, the rotating speed sensor 7, the inclination angle sensor 9, the tail nozzle temperature sensor 2, the compressor rear temperature sensor 30, the pressure sensor 22 and the pulling pressure sensor 34 all send sensing signals to the data acquisition card 10, and the sensing signals are converted into digital signals through the data acquisition card 10 and then transmitted to the electrical control cabinet 31, and meanwhile, the electrical control cabinet 31 is also electrically connected with the pitching device and the rolling device and used for controlling the pitching device and the rolling device.
The pitching device comprises two connecting shafts 24 which are arranged at the bottom of the pitching test bed 16 through connecting shaft supports, and the two connecting shafts 24 are arranged corresponding to the front end and the rear end of the micro-engine 1; one of the connecting shafts 24 is movably arranged in a hole at one end of the supporting rib plate 25 in a penetrating way, and the other end of the supporting rib plate 25 is fixedly arranged on the supporting base 14; the servo electric cylinder 13 is also included, and a servo electric cylinder upper bracket 35 arranged at the upper end of the servo electric cylinder 13 is movably connected with the other connecting shaft 24; a servo electric cylinder lower support connecting shaft 24 is fixed on the supporting base 14 through a second connecting shaft support, a servo electric cylinder lower support 36 arranged at the lower end of the servo electric cylinder 13 is movably connected with the lower support connecting shaft 24, the servo electric cylinder 13 is electrically connected with an electric control cabinet 31, and the electric control cabinet 31 controls the servo electric cylinder 13 to move up and down so as to realize the pitching and pitching motions of the pitching test bed 16.
The supporting base 14 comprises an upper supporting plate, a lower supporting plate and a vertical plate, the upper supporting plate is arranged on the upper part of one side of the vertical plate, the lower supporting plate is arranged on the lower part of the other side of the vertical plate, the supporting rib plate 25 is fixedly arranged on the upper supporting plate, and the lower support connecting shaft 24 is fixedly arranged on the lower supporting plate.
The rolling device comprises a rolling table 23, the rolling table 23 is installed on a rolling table bracket 5 through a supporting rotor 4, the rolling table bracket 5 is arranged on a pitching test table 16, the rolling table 23 rotates along the axis of the micro-engine 1, the rolling table 23 is provided with a semi-arc-shaped groove, the section of the rolling table 23 is in a semi-arc shape, the micro-engine 1 is fixedly installed in the semi-arc-shaped groove of the rolling table, a gear 18 is arranged on the outer surface of one end of the rolling table 23, the gear 18 is meshed with a motor gear 11, and the motor 15 drives the motor gear 11 so as to drive the rolling table 23 to rotate; the electric control cabinet 31 controls the motor 15 to realize the rotation of the rolling platform 23. A roll table fixing block 17 is further arranged at one end of the roll table 23, and the roll table fixing block 17 is fixedly arranged on the pitch test table 16; the fixed block bearing 19 is arranged on the fixed block 17 of the rolling table, and the fixed block bearing 19 is tightly pressed on the inner side of the semi-arc-shaped groove of the rolling table 23. A chute groove is provided at the bottom of the rolling table 23 in the rolling direction of the rolling table 23, and the tension and pressure sensor 34 is provided in the chute groove. Along the semiarc shape recess both sides of roll-over platform 23 are equipped with sensor mounting platform, speed sensor 7 install on sensor mounting platform through speed sensor locating plate 8, inclination sensor 9 passes through the bolt fastening on sensor mounting platform, jet nozzle temperature sensor 2 support the jet nozzle exit that sets up at micro-engine 1 through two sensor fixing ring 3 that correspond to set up on sensor mounting platform. The micro-engine 1 is fixed in a semi-arc groove of a rolling platform 23 through a positioning ring 21, and the vibration sensor 6 is arranged on the positioning ring 21.
The pressure sensor 22 and the compressor rear temperature sensor 30 are installed at the compressor outlet section of the micro-engine 1 and symmetrically arranged in the direction vertical to the axis of the micro-engine 1, and the oil pipe quick connector 20 is arranged on the side of the air inlet at the front end of the micro-engine 1.
The data acquisition card 10 at least comprises two data acquisition cards which are respectively arranged on two sides of the supporting base 14; an industrial personal computer is arranged in the electric control cabinet 31, a control console 31 is arranged on the electric control cabinet 31, a display 32 and a control console 33 used for controlling the pitching device and the rolling device are arranged on the control console 31, the display 32 and the control console 33 are respectively and electrically connected with the industrial personal computer, and a noise sensor is arranged in the control console 31; the data collected by the tension pressure sensor 34, the rotating speed sensor 7, the vibration sensor 6, the jet nozzle temperature sensor 2, the pressure sensor 22, the compressor rear temperature sensor 30 and the inclination angle sensor 9 are received by the data acquisition card 10, converted into digital signals and transmitted to the industrial personal computer, and displayed on the display 32 of the console 31, and the final thrust values at different angles are output on the display 32 through the pitching angle value and the calculation program of the industrial personal computer.
During formal test, the engine is started, and the display 32 displays various technical parameters of the engine detected by various sensors, including thrust, rotating speed, vibration, compressor temperature, compressor pressure, tail nozzle jet temperature, fuel flow, pitch angle and roll angle; the expansion and contraction of the servo electric cylinder are controlled through a pitch button of the console 33, at the moment, the pitch platform 16 starts to turn over until the limit value of the pitch angle is reached, and the pitch angle can be positioned at a certain given position or the change rate of the given roll and pitch angles through a roll stop button on the console 33, so that the engine attitude test bed rolls and pitches at a given rate; the pitch angle can also be set at a given position by a roll stop button on the console 33. Meanwhile, the servo motor 15 is controlled through a rolling button on the control platform 33, so that the rolling platform 23 can roll or stop rolling, and the rolling and pitching attitude of the micro turbojet engine 1 in the air is simulated; the change rate of the roll angle and the change rate of the pitch angle can be given through the industrial personal computer, so that the engine attitude test bed rolls and pitches according to the given rate, and various technical parameters of the engine in the actual attitude in the air are obtained.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A rolling and pitching attitude test bed for a micro engine comprises the micro engine and a supporting base and is characterized by further comprising a pitching test bed, wherein the pitching test bed is arranged on the supporting base through a pitching device which drives the pitching test bed to perform pitching and pitching motions; the miniature engine is fixedly arranged on the rolling platform, the rolling platform is arranged on the pitching test bed through a rolling device which drives the rolling platform to perform rolling motion, and the pull pressure sensor is arranged on the pitching test bed below the rolling device; the micro engine is provided with a pressure sensor, a compressor rear temperature sensor and an oil pipe quick joint arranged on the side of an air inlet at the front end of the micro engine; a vibration sensor, a rotating speed sensor, an inclination angle sensor and a tail nozzle temperature sensor are arranged on the rolling table; the system also comprises a data acquisition card and a flowmeter which are arranged on the lower supporting platform, and the engine kerosene is connected into an oil pipe quick joint of the micro turbojet engine through the flowmeter; the vibration sensor, the rotating speed sensor, the inclination angle sensor, the tail nozzle temperature sensor, the gas compressor rear temperature sensor, the pressure sensor and the pull pressure sensor send sensing signals to the data acquisition card, the sensing signals are converted into digital signals through the data acquisition card and then transmitted to the electrical control cabinet, and the electrical control cabinet is further electrically connected with the pitching device and the rolling device and used for controlling the pitching device and the rolling device.
2. The rolling and pitching attitude test bed of the micro-engine as claimed in claim 1, wherein said pitching means comprises two connecting shafts mounted on the bottom of the pitching test bed through connecting shaft supports, and the two connecting shafts are disposed corresponding to the front and rear ends of the micro-engine; one connecting shaft is movably arranged in a hole in one end of the supporting rib plate in a penetrating manner, and the other end of the supporting rib plate is fixedly arranged on the supporting base; the servo electric cylinder is arranged at the upper end of the servo electric cylinder, and an upper bracket of the servo electric cylinder is movably connected with the other connecting shaft; a servo electric cylinder lower support connecting shaft is fixed on the supporting base through a second connecting shaft support, a servo electric cylinder lower support arranged at the lower end of the servo electric cylinder is movably connected with the lower support connecting shaft, the servo electric cylinder is electrically connected with an electric control cabinet, and the electric control cabinet controls the servo electric cylinder to move up and down so as to realize the pitching and pitching movement of the pitching test bed.
3. The rolling and pitching attitude test bed for the micro-engine according to claim 2, wherein the supporting base comprises an upper supporting plate, a lower supporting plate and a vertical plate, the upper supporting plate is disposed on the upper portion of one side of the vertical plate, the lower supporting plate is disposed on the lower portion of the other side of the vertical plate, the supporting rib plate is fixedly disposed on the upper supporting plate, and the lower support connecting shaft is fixedly disposed on the lower supporting plate.
4. The microengine roll-pitch attitude testing stand as claimed in claim 1, wherein the rolling device comprises a roll table mounted on a roll table support by a support rotor, the roll table support being disposed on the pitch testing stand, the roll table being rotatable along the axis of the microengine, the roll table having a semi-arc recess with a semi-arc cross-section, the microengine being fixedly mounted in the semi-arc recess of the roll table, a gear being provided on an outer surface of one end of the roll table, the gear being engaged with a gear of a motor, the motor driving the gear of the motor thereby rotating the roll table; the electric control cabinet controls the motor to realize the rotation of the rolling table.
5. The attitude test bed of a micro-engine according to claim 4, wherein a roll bed fixing block is further provided at one end of the roll bed, and the roll bed fixing block is fixedly mounted on the pitch test bed; and a fixed block bearing is arranged on the fixed block of the rolling table and tightly presses the inner side of the semi-arc-shaped groove of the rolling table.
6. The attitude test bed of a micro-engine according to claim 4, wherein a slide groove is provided at the bottom of the roll table in the rolling direction of the roll table, and a tension/pressure sensor is provided in the slide groove.
7. The attitude testing stand for the micro-engine according to claim 4, wherein sensor mounting platforms are provided along both sides of the semi-arc recess of the rolling table, the rotation speed sensor is mounted on the sensor mounting platforms through a rotation speed sensor positioning plate, the tilt sensor is fixed on the sensor mounting platforms through bolts, and the jet nozzle temperature sensor is supported at the jet nozzle outlet of the micro-engine through two sensor fixing rings correspondingly provided on the sensor mounting platforms.
8. The micro-engine attitude test bed of claim 4, wherein said micro-engine is fixed in a semi-arc recess of a roll table by a positioning ring, said vibration sensor being mounted on said positioning ring.
9. The attitude test bed for the micro-engine according to claim 1, wherein the pressure sensor and the compressor rear temperature sensor are installed at the outlet section of the compressor of the micro-engine and symmetrically arranged in the direction perpendicular to the axis of the micro-engine, and the oil pipe quick connector is arranged on the side of the air inlet at the front end of the micro-engine.
10. The attitude test bed of a micro-engine according to any one of claims 1 to 9, wherein said data acquisition cards comprise at least two and are respectively mounted on both sides of said supporting base; an industrial personal computer is arranged in the electrical control cabinet, a control console is arranged on the electrical control cabinet, a display and a control console for controlling the pitching device and the rolling device are arranged on the control console, and the display and the control console are respectively and electrically connected with the industrial personal computer; the data collected by the tension pressure sensor, the rotating speed sensor, the vibration sensor, the tail nozzle temperature sensor, the pressure sensor, the gas compressor rear temperature sensor and the inclination angle sensor are received by the data acquisition card, converted into digital signals and transmitted to the industrial personal computer, and displayed on a display of the console, and final thrust values at different angles are output on the display through the pitching angle value and the calculation program of the industrial personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332881.6A CN110873647A (en) | 2019-12-20 | 2019-12-20 | Rolling and pitching attitude test bed for micro engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332881.6A CN110873647A (en) | 2019-12-20 | 2019-12-20 | Rolling and pitching attitude test bed for micro engine |
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| CN110873647A true CN110873647A (en) | 2020-03-10 |
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| CN201911332881.6A Pending CN110873647A (en) | 2019-12-20 | 2019-12-20 | Rolling and pitching attitude test bed for micro engine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088390A (en) * | 2021-11-15 | 2022-02-25 | 江苏科技大学 | Turbine mechanical foundation variable acceleration motion simulation test platform and motion simulation method |
| EP3964816A1 (en) * | 2020-09-04 | 2022-03-09 | Pratt & Whitney Canada Corp. | Portable test stand for aircraft engines |
| CN114524109A (en) * | 2021-07-07 | 2022-05-24 | 力姆泰克（北京）传动设备股份有限公司 | Multi-degree-of-freedom testing device |
-
2019
- 2019-12-20 CN CN201911332881.6A patent/CN110873647A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3964816A1 (en) * | 2020-09-04 | 2022-03-09 | Pratt & Whitney Canada Corp. | Portable test stand for aircraft engines |
| US11460373B2 (en) | 2020-09-04 | 2022-10-04 | Pratt & Whitney Canada Corp. | Portable test stand for aircraft engines |
| US11874196B2 (en) | 2020-09-04 | 2024-01-16 | Pratt & Whitney Canada Corp. | Portable test stand and method for testing aircraft engines |
| CN114524109A (en) * | 2021-07-07 | 2022-05-24 | 力姆泰克（北京）传动设备股份有限公司 | Multi-degree-of-freedom testing device |
| CN114088390A (en) * | 2021-11-15 | 2022-02-25 | 江苏科技大学 | Turbine mechanical foundation variable acceleration motion simulation test platform and motion simulation method |
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