CN113607335A - Test system and test method for verifying reliability of turbine pump balancing device - Google Patents
Test system and test method for verifying reliability of turbine pump balancing device Download PDFInfo
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- CN113607335A CN113607335A CN202110893305.XA CN202110893305A CN113607335A CN 113607335 A CN113607335 A CN 113607335A CN 202110893305 A CN202110893305 A CN 202110893305A CN 113607335 A CN113607335 A CN 113607335A
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- 238000012360 testing method Methods 0.000 title claims abstract description 95
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000013016 damping Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 229920001967 Metal rubber Polymers 0.000 claims description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to a test system and a test method for verifying the reliability of a turbine pump balancing device, wherein the test system comprises a power device, a damping device and a measuring device, the output end of the power device is used for being matched and connected with an inlet shell of a turbine pump at the radial side of a rotor structure of the turbine pump, and the power device is used for providing a liquid medium with adjustable pressure and flow to drive the rotor structure of the turbine pump to rotate; the damping device is used for being matched with a rotor structure of the turbine pump so as to control the rotating speed and the axial displacement of the rotor structure of the turbine pump; the measuring device is used for measuring the axial displacement and the axial force of a rotor structure of the turbine pump; the testing system outputs high-pressure liquid by the simple and easily-obtained power device, and the power device controls the high-pressure liquid medium to enter the turbopump in the radial direction, so that the axial layout of the testing system is very simple, the arrangement of the damping device and the measuring device is convenient, the testing difficulty is reduced, and the testing cost is saved.
Description
Technical Field
The invention relates to the technical field of turbopumps of rocket engines, in particular to a test system and a test method for verifying the reliability of a turbopump balancing device.
Background
Both domestic and foreign high-thrust liquid rocket engines adopt pumping pressure type propellant supply systems to optimize rocket design schemes and improve carrying capacity. The turbo pump is an important component of an engine system, and the operational reliability of the turbo pump affects the safe operation of the whole engine. The centrifugal pump is limited by the factors such as the performance and the structural layout of the turbine pump, unbalanced axial force caused by asymmetric hydraulic distribution exists at the beginning of design of the turbine pump, particularly for a high-thrust liquid rocket engine, the hydraulic pressure of a centrifugal pump outlet is up to dozens of even dozens of megapascals, so that a turbine pump rotor bears huge axial force, the axial force must be balanced, otherwise, rotor and stator collision and abrasion can occur, the turbine pump is damaged, and the engine is not beneficial. At present, a balance piston device is usually adopted in a high-thrust liquid rocket engine at home and abroad to balance the larger axial force of a turbopump.
Due to the complexity of turbulent flow, it is difficult to accurately calculate the reliability of the balance piston device for balancing the axial force of the turbopump, and therefore, it can only be verified through a centrifugal pump liquid flow or real medium test whether the structural parameters of the balance piston are correctly designed, and therefore, providing a test system capable of verifying the reliability of the turbopump balance device becomes an important technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The first purpose of the invention is to provide a test system for verifying the reliability of a turbine pump balancing device, so as to verify the reliability of the turbine pump balancing device.
The second purpose of the invention is to provide a test method of the test system for verifying the reliability of the turbine pump balancing device.
In order to achieve the purpose, the invention provides the following technical scheme:
a test system for verifying reliability of a turbine pump balancing device, comprising:
the output end of the power device is used for being matched and connected with an inlet shell of the turbo pump at the radial side of a rotor structure of the turbo pump, and the power device is used for providing liquid medium with adjustable pressure and flow to drive the rotor structure of the turbo pump to rotate;
the damping device is used for being matched with the rotor structure of the turbine pump so as to control the rotating speed and the axial displacement of the rotor structure of the turbine pump;
and the measuring device is used for measuring the axial displacement of the rotor structure of the turbine pump and the axial force output by the rotor structure of the turbine pump.
Preferably, the power plant comprises a high pressure liquid tank or a plunger pump supply system.
Preferably, the damping device and the measuring device are respectively disposed at both ends of a rotor structure of the turbo pump.
Preferably, the damping means comprises a metal rubber damper.
Preferably, the measuring device comprises a displacement sensor and a load cell.
Preferably, a rotational speed measuring device for measuring a rotational speed of the rotor structure of the turbo pump is further included.
Preferably, the controller is in communication connection with the power device, the displacement sensor, the load cell, the rotating speed measuring device and the timer, and controls the output pressure and the flow rate of the power device and controls the timer to start timing when the rotating speed measuring device detects that the rotating speed of the rotor structure of the turbopump reaches a preset value.
Preferably, the liquid level detection device and the feedback device are used for detecting the liquid medium level of the power device, and the liquid level detection device and the feedback device are respectively in communication connection with the controller.
A testing method of the testing system for verifying the reliability of the balancing device of the turbine pump based on any one of the above items, comprising the steps of:
1) building a test system for verifying the reliability of the turbine pump balancing device based on the turbine pump to be verified;
2) starting a power device of the test system to drive a rotor structure of the turbopump to be verified to rotate at X% of a rated rotating speed for a preset time, wherein X is greater than 0, and collecting test data measured by a measuring device of the test system;
3) the pressure and the flow of the liquid medium output by the power device are adjusted to gradually increase the rotating speed of the rotor structure of the turbopump to (X + Y) of the rated rotating speed1)％、(X+Y 2)％...(X+Y n) % and after each adjustment, continuously running for a predetermined time and collecting test data measured by a measuring device of the test system, wherein Y1、Y 2…Y nSequentially increasing and all being greater than 0, n is a positive integer greater than 0, (X + Y)n) The percent is more than or equal to the rated rotating speed;
4) and analyzing the test data, if the analysis result meets the requirement, proving that the reliability of the turbine pump balancing device meets the requirement, otherwise, adjusting the parameters of the turbine pump balancing device according to the analysis result, and repeatedly performing the test.
Preferably, before the step 2), the internal flow path of the turbopump and test system combined structure to be verified is subjected to tightness inspection, and the step 2) is performed after the tightness inspection is qualified.
Preferably, the maximum rotational speed of the rotor structure of the turbopump in step 3) is 120% of the rated rotational speed.
According to the technical scheme, the test system for verifying the reliability of the turbine pump balancing device comprises a power device, a damping device and a measuring device, wherein the output end of the power device is used for being matched and connected with an inlet shell of the turbine pump on the radial side of a rotor structure of the turbine pump, and the power device is used for providing a liquid medium with adjustable pressure and flow to drive the rotor structure of the turbine pump to rotate; the damping device is used for being matched with a rotor structure of the turbine pump so as to control the rotating speed and the axial displacement of the rotor structure of the turbine pump; the measuring device is used for measuring the axial displacement of the rotor structure of the turbine pump and the axial force output by the rotor structure of the turbine pump; when the test system is applied, firstly, a test system for verifying the reliability of the turbine pump balancing device is built on the basis of the turbine pump to be verified; then starting a power device of the test system to drive a rotor structure of the turbopump to be verified to rotate at X% of the rated rotating speed for a preset time, wherein X is greater than 0, and collecting a test systemTest data measured by a conventional measuring device; then the pressure and the flow of the liquid medium output by the power device are adjusted to gradually increase the rotating speed of the rotor structure of the turbopump to (X + Y) of the rated rotating speed1)％、(X+Y 2)％...(X+Y n) % and after each adjustment, continuously running for a predetermined time and collecting test data measured by a measuring device of the test system, wherein Y1、Y 2…Y nSequentially increasing and all being greater than 0, n is a positive integer greater than 0, (X + Y)n) The percent is more than or equal to the rated rotating speed; finally, analyzing test data, if the analysis result meets the requirement, proving that the reliability of the turbine pump balancing device meets the requirement, otherwise, adjusting parameters of the turbine pump balancing device according to the analysis result, and repeating the test; the test system cancels a complex power device required by the axial force test of the turbine pump, such as a gas turbine or a high-power motor, and replaces the complex power device with a simple and easily-obtained power device to output high-pressure liquid; the power device controls the high-pressure liquid medium to enter the turbine pump from the radial direction, so that the axial layout of the test system is very simple, the arrangement of the damping device and the measuring device is convenient, the test difficulty is reduced, and the test cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test system for verifying reliability of a balancing device of a turbo pump according to an embodiment of the present invention.
Wherein:
1 is a power device; 2 is a damping device; 3 is a measuring device; 4 is a rotating shaft; 5 is an impeller; and 6 is a balance piston.
Detailed Description
The invention provides a test system for verifying the reliability of a turbine pump balancing device, and aims to verify the reliability of the turbine pump balancing device.
The invention further provides a test method of the test system for verifying the reliability of the turbine pump balancing device.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a testing system for verifying reliability of a balancing device of a turbo pump according to an embodiment of the present invention.
The embodiment of the invention discloses a test system for verifying the reliability of a turbine pump balancing device, which comprises a power device 1, a damping device 2 and a measuring device 3.
The output end of the power device 1 is used for being matched and connected with an inlet shell of the turbo pump at the radial side of a rotor structure of the turbo pump, the power device 1 is used for providing a liquid medium with adjustable pressure and flow to drive the rotor structure of the turbo pump to rotate, and the rotor structure of the turbo pump comprises a rotating shaft 4 and an impeller 5; the damping device 2 is used for being matched with a rotor structure of the turbine pump so as to control the rotating speed and the axial displacement of the rotor structure of the turbine pump; the measuring device 3 is used for measuring the axial displacement of the rotor structure of the turbo pump and the axial force output by the rotor structure of the turbo pump.
Compared with the prior art, when the test system for verifying the reliability of the turbine pump balancing device provided by the embodiment of the invention is applied, the test system for verifying the reliability of the turbine pump balancing device is firstly established on the basis of the turbine pump to be verified; then starting the power device 1 of the test system to drive the rotor structure of the turbopump to be verified to rotate at X% of the rated rotating speed for a preset time, wherein X is greater than 0, and collecting test data measured by the measuring device 3 of the test system; then adjusting the pressure of the liquid medium output by the power unit 1Force and flow rate are gradually increased to increase the rotating speed of the rotor structure of the turbopump to the rated rotating speed (X + Y)1)％、(X+Y 2)％...(X+Y n) % and after each adjustment, continuously running for a predetermined time and collecting test data measured by the measuring device 3 of the test system, wherein Y1、Y 2…Y nSequentially increasing and all being greater than 0, n is a positive integer greater than 0, (X + Y)n) The percent is more than or equal to the rated rotating speed; finally, analyzing test data, if the analysis result meets the requirement, proving that the reliability of the turbine pump balancing device meets the requirement, otherwise, adjusting parameters of the turbine pump balancing device according to the analysis result, and repeating the test; the test system cancels a complex power device 1 required by the axial force test of the turbine pump, such as a gas turbine or a high-power motor, and replaces the complex power device with a simple and easily-obtained power device 1 to output high-pressure liquid; the power device 1 controls the high-pressure liquid medium to enter the turbopump from the radial direction, so that the axial layout of the test system is very simple, the arrangement of the damping device 2 and the measuring device 3 is convenient, the test difficulty is reduced, and the test cost is saved.
Preferably, the power device 1 includes a high-pressure liquid storage tank or a plunger pump supply system, but other variable-frequency pump liquid structures may be adopted, so that the pressure and flow rate of the output liquid medium can be adjusted.
Preferably, as shown in fig. 1, the damping device 2 and the measuring device 3 are respectively disposed at both ends of a rotor structure of the turbo pump.
Further, the damping device 2 includes a metal rubber damper.
The measuring device 3 is mainly used for measuring the displacement and the axial force of the turbine pump rotor structure during the test process, and therefore in the embodiment of the present invention, the measuring device 3 at least comprises a displacement sensor and a load cell.
In order to know the rotating speed of the rotor structure of the turbine pump in the test process at any time so as to control the rotating speed, the test system further comprises a rotating speed measuring device 3 for measuring the rotating speed of the rotor structure of the turbine pump.
Further optimize above-mentioned technical scheme, above-mentioned test system still includes controller and time-recorder, and the controller is connected with power device 1, displacement sensor, force cell, rotational speed measuring device 3 and time-recorder communication respectively, and the controller control power device 1's output pressure and flow and control time-recorder and begin the timing when rotational speed measuring device 3 detects that the rotational speed of the rotor structure of turbopump reaches the default.
Preferably, the testing system further comprises a liquid level detection device and a feedback device, wherein the liquid level detection device is used for detecting the liquid level of the liquid medium of the power device 1, the liquid level detection device and the feedback device are respectively in communication connection with the controller, and when the liquid level detection device detects that the liquid medium amount of the power device 1 is lower than a preset value, the feedback device is used for reminding a tester to stop the test to supplement the liquid medium.
The embodiment of the invention also provides a test method of the test system for verifying the reliability of the turbine pump balancing device based on the embodiment, and the test method comprises the following steps:
s1: building a test system for verifying the reliability of the turbine pump balancing device based on the turbine pump to be verified;
s2: starting the power device 1 of the test system to drive the rotor structure of the turbopump to be verified to rotate at X% of the rated rotating speed for a preset time, wherein X is greater than 0, and collecting test data measured by the measuring device 3 of the test system;
s3: the pressure and the flow of the liquid medium output by the power device 1 are adjusted to gradually increase the rotating speed of the rotor structure of the turbopump to the rated rotating speed (X + Y)1)％、(X+Y 2)％...(X+Y n) % and after each adjustment, continuously running for a predetermined time and collecting test data measured by the measuring device 3 of the test system, wherein Y1、Y 2…Y nSequentially increasing and all being greater than 0, n is a positive integer greater than 0, (X + Y)n) The percent is more than or equal to the rated rotating speed;
s4: and analyzing the test data, if the analysis result meets the requirement, proving that the reliability of the turbine pump balancing device meets the requirement, otherwise, adjusting the parameters of the turbine pump balancing device according to the analysis result, and repeatedly performing the test.
Before step S2, the internal flow path of the turbopump and test system combined structure to be verified is subjected to a sealing performance check, and after the sealing performance check is passed, step S2 is performed.
The maximum rotational speed of the rotor structure of the turbo pump is 120% of the rated rotational speed in step S3, and further, the rotational speed of the rotor structure of the turbo pump is increased by 20% in step S3, i.e., the rotational speed of the rotor structure of the turbo pump is controlled to be 20%, 40%, 60%, 80%, 100%, 120% of the rated rotational speed during the test.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A test system for verifying reliability of a turbine pump balancing device, comprising:
the output end of the power device is used for being matched and connected with an inlet shell of the turbo pump at the radial side of a rotor structure of the turbo pump, and the power device is used for providing liquid medium with adjustable pressure and flow to drive the rotor structure of the turbo pump to rotate;
the damping device is used for being matched with the rotor structure of the turbine pump so as to control the rotating speed and the axial displacement of the rotor structure of the turbine pump;
and the measuring device is used for measuring the axial displacement of the rotor structure of the turbine pump and the axial force output by the rotor structure of the turbine pump.
2. The testing system for verifying reliability of a turbopump balancing device of claim 1, wherein the power plant comprises a high pressure liquid tank or a plunger pump supply system.
3. The testing system for verifying the reliability of the balancing device of the turbo pump according to claim 1 or 2, wherein the damping device and the measuring device are respectively disposed at two ends of the rotor structure of the turbo pump.
4. The testing system for verifying reliability of a balancing device of a turbo pump according to claim 1 or 2, wherein the damping device comprises a metal rubber damper.
5. The testing system for verifying reliability of a balancing device of a turbopump according to claim 1 or 2, wherein the measuring device comprises a displacement sensor and a load cell.
6. The testing system for verifying reliability of the balancing device of the turbopump as recited in claim 5, further comprising a rotational speed measuring device for measuring a rotational speed of the rotor structure of the turbopump.
7. The testing system for verifying the reliability of the turbine pump balancing device according to claim 6, further comprising a controller and a timer, wherein the controller is respectively connected with the power device, the displacement sensor, the load cell, the rotation speed measuring device and the timer in a communication manner, the controller controls the output pressure and the flow rate of the power device and controls the timer to start timing when the rotation speed measuring device detects that the rotation speed of the rotor structure of the turbine pump reaches a preset value.
8. The testing system for verifying the reliability of the turbine pump balancing device according to claim 7, further comprising a liquid level detection device and a feedback device for detecting the liquid medium level of the power device, wherein the liquid level detection device and the feedback device are respectively in communication connection with the controller.
9. A testing method of a testing system for verifying reliability of a balancing device of a turbo pump according to any one of claims 1 to 8, comprising the steps of:
1) building a test system for verifying the reliability of the turbine pump balancing device based on the turbine pump to be verified;
2) starting a power device of the test system to drive a rotor structure of the turbopump to be verified to rotate at X% of a rated rotating speed for a preset time, wherein X is greater than 0, and collecting test data measured by a measuring device of the test system;
3) the pressure and the flow of the liquid medium output by the power device are adjusted to gradually increase the rotating speed of the rotor structure of the turbopump to (X + Y) of the rated rotating speed1)％、(X+Y2)％...(X+Yn) % and after each adjustment, continuously running for a predetermined time and collecting test data measured by a measuring device of the test system, wherein Y1、Y2…YnSequentially increasing and all being greater than 0, n is a positive integer greater than 0, (X + Y)n) The percent is more than or equal to the rated rotating speed;
4) and analyzing the test data, if the analysis result meets the requirement, proving that the reliability of the turbine pump balancing device meets the requirement, otherwise, adjusting the parameters of the turbine pump balancing device according to the analysis result, and repeatedly performing the test.
10. The testing method according to claim 9, wherein before the step 2), the internal flow path of the turbopump and testing system combination structure to be verified is subjected to a tightness check, and the step 2) is performed after the tightness check is passed.
11. Test method according to claim 9, characterized in that the maximum rotational speed of the rotor arrangement of the turbopump in step 3) is 120% of the nominal rotational speed.
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| CN202110893305.XA CN113607335B (en) | 2021-08-04 | 2021-08-04 | Test system and test method for verifying reliability of turbine pump balancing device |
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| CN202110893305.XA CN113607335B (en) | 2021-08-04 | 2021-08-04 | Test system and test method for verifying reliability of turbine pump balancing device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202194866U (en) * | 2011-07-25 | 2012-04-18 | 中国航天科技集团公司第六研究院第十一研究所 | Axial force balancing device for turbine pump of engine |
| CN203858062U (en) * | 2014-05-29 | 2014-10-01 | 北京航天动力研究所 | Standard rotor used for calibration of high-speed rotor dynamic characteristic test bed |
| CN107014562A (en) * | 2017-04-26 | 2017-08-04 | 北京航天动力研究所 | A kind of liquid-propellant rocket engine turbine pump flex rotor high-speed balancing supporting arrangement |
| CN209838554U (en) * | 2019-02-11 | 2019-12-24 | 北京星际荣耀空间科技有限公司 | Axial force balancing device of turbopump of liquid rocket engine |
| CN111753380A (en) * | 2020-06-12 | 2020-10-09 | 哈尔滨工业大学 | Modeling method for gap sealing model of rocket engine liquid oxygen turbine pump |
| CN111828372A (en) * | 2020-06-23 | 2020-10-27 | 北京航天动力研究所 | Flexible rotor of ultrahigh-rotating-speed liquid hydrogen turbopump |
| CN112523900A (en) * | 2020-11-30 | 2021-03-19 | 西安航天动力研究所 | Device for measuring axial force of turbine pump |
-
2021
- 2021-08-04 CN CN202110893305.XA patent/CN113607335B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202194866U (en) * | 2011-07-25 | 2012-04-18 | 中国航天科技集团公司第六研究院第十一研究所 | Axial force balancing device for turbine pump of engine |
| CN203858062U (en) * | 2014-05-29 | 2014-10-01 | 北京航天动力研究所 | Standard rotor used for calibration of high-speed rotor dynamic characteristic test bed |
| CN107014562A (en) * | 2017-04-26 | 2017-08-04 | 北京航天动力研究所 | A kind of liquid-propellant rocket engine turbine pump flex rotor high-speed balancing supporting arrangement |
| CN209838554U (en) * | 2019-02-11 | 2019-12-24 | 北京星际荣耀空间科技有限公司 | Axial force balancing device of turbopump of liquid rocket engine |
| CN111753380A (en) * | 2020-06-12 | 2020-10-09 | 哈尔滨工业大学 | Modeling method for gap sealing model of rocket engine liquid oxygen turbine pump |
| CN111828372A (en) * | 2020-06-23 | 2020-10-27 | 北京航天动力研究所 | Flexible rotor of ultrahigh-rotating-speed liquid hydrogen turbopump |
| CN112523900A (en) * | 2020-11-30 | 2021-03-19 | 西安航天动力研究所 | Device for measuring axial force of turbine pump |
Non-Patent Citations (1)
| Title |
|---|
| 罗巧军;褚宝鑫;须村;: "氢涡轮泵次同步振动问题的试验研究", 火箭推进, no. 05 * |
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