CN107478309B - Method for measuring single-tank filling amount of satellite in storage tank tiled structure - Google Patents
Method for measuring single-tank filling amount of satellite in storage tank tiled structure Download PDFInfo
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- CN107478309B CN107478309B CN201710545833.XA CN201710545833A CN107478309B CN 107478309 B CN107478309 B CN 107478309B CN 201710545833 A CN201710545833 A CN 201710545833A CN 107478309 B CN107478309 B CN 107478309B
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- filling
- storage tank
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- mass
- filling process
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005429 filling process Methods 0.000 claims abstract description 25
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a method for measuring the filling amount of a satellite single tank in a storage tank tiling structure mode, which comprises the following steps of 1) measuring the installation position of a storage tank; 2) recording the mass and the mass center data of the satellite before the satellite is filled; 3) sampling and recording the output value of each sensor in the whole satellite filling process; 4) calculating satellite mass and mass center data at each moment according to the sensor data in the filling process; 5) and calculating the filling amount of each storage tank through the filling process, the satellite mass and mass center data before filling and the installation position of each storage tank. The invention has the advantages that: and calculating to obtain the fuel filling condition of a single storage tank at each sampling moment in the filling process according to the micro mass center data sampled in real time, and providing a basis for controlling the fuel filling amount of each storage tank.
Description
Technical Field
The invention belongs to the technical field of centroid testing, and particularly relates to a method for measuring the filling amount of a single satellite tank in a storage tank flat laying mode.
Background
Because a high-orbit satellite needs to enter a synchronous orbit after orbit change, fuel filling is usually required before the satellite is launched, the fuel filling amount is equivalent to the dry weight of the satellite, the filling mode is that a single fuel is filled into multiple storage tanks simultaneously, the filling amount of the storage tanks cannot be ensured to be consistent in the filling process due to the difference of filling pipelines of all storage tanks, the storage tanks are ensured to be uniformly filled by a standing mode in the prior art, the efficiency is low, and the safety is poor.
Aiming at the problem, a mass center testing method in the filling process is researched, the testing method is improved according to the characteristic that the storage tank is tiled, the problem is solved, and the measurement of the single-tank filling amount in the filling process is realized.
Disclosure of Invention
In order to solve the problems, the invention provides a method for measuring the filling quantity of a flat-type satellite of a storage tank.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a method for realizing the measurement of the filling quantity of a satellite single tank in a storage tank flat structure mode comprises the following steps
1) Measuring the installation position of the storage box;
2) recording the mass and the mass center data of the satellite before the satellite is filled;
3) sampling and recording the output value of each sensor in the whole satellite filling process;
4) calculating satellite mass and mass center data at each moment according to the sensor data in the filling process;
5) and calculating the filling amount of each storage tank through the filling process, the satellite mass and mass center data before filling and the installation position of each storage tank.
Further, when the measuring precision of the tank filling amount in the step 1) is less than 1kg, a design value can be directly used.
Further, all filling valves are installed in place before filling in the step 2), the pipeline direction is fixed, and the filling fuel reaches the inlet end.
Further, the number of the strain gauge type weighing sensors is 3.
Wherein the sensor is a strain type weighing sensor,
wherein, the tanks are in a communicated state when being filled, and the number of the filled storage tanks is not more than 3 at most.
And (4) calculating the filling amount of each storage tank by combining the mounting position of each storage tank through the test data of the satellite filling process and the test data before filling.
Compared with the prior art, the invention has the advantages that: the single storage tank fuel filling condition at each sampling moment in the filling process can be obtained through calculation according to the micro mass center data sampled in real time, and a basis is provided for controlling the fuel filling amount of each storage tank.
Drawings
Fig. 1 is a schematic diagram of an implementation of the method for measuring the filling amount of a satellite single tank in a storage tank tiled structure according to the present invention.
FIG. 2 is a flow chart of a method of the present invention for achieving satellite single tank fill level measurement in a tank tiled configuration.
Detailed Description
Fig. 1 is a schematic diagram of an implementation of the method for measuring the filling amount of a satellite single tank in a storage tank tiled structure according to the present invention.
P1、P2、P3Is a reading of 3 sensors, the initial value reading is not P1’、P2’、P3’；
The three sensors are uniformly distributed along the periphery, and R is the radius of a circle where the sensors are located;
the filling mass of the storage tank 1 is m1The mounting position coordinate is (x)1,y1)；
The filling mass of the storage tank 2 is m2The mounting position coordinate is (x)2,y2)
If the storage tank is three storage tanks, the filling mass of the storage tank 2 is m3The mounting position coordinate is (x)3,y3)
The technical contents of the present patent will now be further described with reference to the accompanying drawings.
1. Method for measuring installation position of storage tank
Usually, measurement is carried out when a storage tank is installed in the satellite structure assembly stage, a reference coordinate system of the storage tank amount is consistent with a reference coordinate system used for centroid test, and when the requirement on the filling amount measurement accuracy is not high, a design value can be directly adopted for calculation, namely x is obtained1、y1、 x2、y2A value of (d);
2. pre-satellite filling centroid testing
Valves and pipelines required to be used in the filling process are all installed in place before the satellite is formally filled, the pipelines are well fixed to the ground to prevent the pipelines in the filling process from moving, the filling fuel reaches the last valve connected with the satellite and the valves are not opened, the reading of a sensor at the moment is recorded, and P is obtained1’、P2’、P3The value of';
3. filling process centroid testing
The filling process is carried out according to certain sampling requirementsThe reading of the sensor is sampled, i.e. P is obtained1、P2、P3Value of (A)
4. Calculation of filling quantity of each storage tank during simultaneous filling of double storage tanks
After test data are sampled in the filling process, the filling amount of each storage tank is calculated through software, and the specific calculation formula is
Obtaining the fuel filling amount m of each storage tank1、m2；
5. Calculation of filling quantity of each storage tank when three storage tanks are filled simultaneously
After test data are sampled in the filling process, the filling amount of each storage tank is calculated through software, and the specific calculation formula is
Wherein
A＝p1'+p2'+p3'-(p1+p2+p3)；
Obtaining the fuel filling amount m of each storage tank1、m2、m3。
Claims (1)
1. A method for realizing the measurement of the filling amount of a satellite single tank in a storage tank tiled structure mode is characterized by comprising the following steps:
1) measuring the installation position of the storage box; measuring when a storage tank is installed in the satellite structure assembly stage, wherein a reference coordinate system of the storage tank amount is consistent with a reference coordinate system used for centroid testing, and when the requirement on the filling amount measurement accuracy is not high, calculating by directly adopting a design value, namely obtaining values of x1, y1, x2 and y 2;
2) recording the mass and the mass center data of the satellite before the satellite is filled; valves and pipelines which need to be used in the filling process are all installed in place before the satellite is formally filled, the pipelines are well fixed with the ground to prevent the pipelines in the filling process from moving, the filling fuel reaches the last valve connected with the satellite body and the valves are not opened, and the reading of the sensors at the moment is recorded, namely the values of P1 ', P2 ' and P3 ' are obtained;
3) sampling and recording the output value of each sensor in the whole satellite filling process; in the filling process, the readings of each sensor are sampled according to certain sampling requirements, namely the values of P1, P2 and P3 are obtained;
4) calculating satellite mass and mass center data at each moment according to the sensor data in the filling process; after test data are sampled in the filling process, the filling amount of each storage tank is calculated through software, and the specific calculation formula is as follows:
5) calculating the filling amount of each storage tank through the filling process, the satellite mass and mass center data before filling and the installation position of each storage tank;
p1, P2, P3 are readings of 3 sensors, and initial value readings are P1 ', P2 ', P3 ';
the three sensors are uniformly distributed along the periphery, and R is the radius of a circle where the sensors are located;
the filling quality of the storage tank 1 is m1, and the coordinates of the installation position are (x 1, y 1);
the filling quality of the storage tank 2 is m2, and the coordinates of the installation position are (x 2, y 2);
if the storage tank is a three-storage tank, the filling quality of the storage tank 3 is m3, and the coordinates of the installation position are (x 3, y 3);
the storage tank is in a communicated state when being filled;
the number of the sensors is 3;
the step 1) directly using a design value when the measurement precision of the tank filling amount is less than 1 kg;
all filling valves are installed in place before filling in the step 2), the direction of pipelines is fixed, and the filling fuel reaches an inlet end;
the number of the storage tanks which are filled simultaneously by each storage tank is less than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545833.XA CN107478309B (en) | 2017-07-06 | 2017-07-06 | Method for measuring single-tank filling amount of satellite in storage tank tiled structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545833.XA CN107478309B (en) | 2017-07-06 | 2017-07-06 | Method for measuring single-tank filling amount of satellite in storage tank tiled structure |
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| Publication Number | Publication Date |
|---|---|
| CN107478309A CN107478309A (en) | 2017-12-15 |
| CN107478309B true CN107478309B (en) | 2020-06-19 |
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| CN201710545833.XA Expired - Fee Related CN107478309B (en) | 2017-07-06 | 2017-07-06 | Method for measuring single-tank filling amount of satellite in storage tank tiled structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7967257B2 (en) * | 2007-10-30 | 2011-06-28 | Raytheon Company | Space object deployment system and method |
| CN104034481B (en) * | 2014-05-07 | 2015-07-01 | 北京空间飞行器总体设计部 | Tank-distributively arranged spacecraft-used propellant counterweight method |
| CN106516167B (en) * | 2016-11-03 | 2019-05-03 | 上海卫星工程研究所 | The high-precision repropellenting method of high rail parallel connection tiling tank satellite |
| CN106762224B (en) * | 2016-11-21 | 2018-01-05 | 北京控制工程研究所 | A kind of Large Copacity half manages formula surface tension propellant tank balance charging method in parallel |
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Granted publication date: 20200619 |