Method and device for generating gravity center curve in fuel oil adding and consumption process of airplane

Abstract

The invention provides a method and device for generating a gravity center curve in the fuel oil adding and consumption process of an aircraft, and belongs to the field of aircraft data processing.The method comprises the steps that fuel oil mathematical models and flight state angles of all fuel tank units of the aircraft are obtained, the fuel oil mathematical models of all fuel oil units under the flight attitude angles are sliced, and fuel oil mathematical models of all fuel oil units under the flight attitude angles are obtained; obtaining weight gravity center slice data of the fuel mathematical model; constructing a residual oil inflection point table; determining fuel quantity state points required on the gravity center curve in the fuel adding and consumption process, describing the fuel adding and consumption sequence of the fuel mathematical model of each fuel tank unit by using a residual fuel inflection point table to simulate the fuel consumption process, and obtaining the fuel weight of each fuel tank unit under each fuel quantity state point; interpolating according to the weight gravity center slice data of the fuel mathematical model of each fuel tank unit to obtain the fuel weight gravity center of the current fuel quantity state point of each fuel tank unit; according to the fuel weight gravity center of the current fuel quantity state point of each fuel tank unit, the combined weight gravity center of each fuel quantity state point is obtained, and according to the combined weight gravity center of each fuel quantity state point, a gravity center curve of the aircraft fuel adding and consumption process is drawn.

Description

Technical Field

[0001] The present application belongs to the field of aircraft center of gravity calculation design, and in particular relates to a method and device for generating a center of gravity curve during the fuel filling and consumption process of an aircraft. Background Art

[0002] During the aircraft weight and balance design process, due to the need to control the center of gravity of new layout aircraft, the center of gravity of the fuel needs to be controlled during the refueling process. The traditional method of refueling one tank at a time can no longer meet the aircraft design requirements. The traditional method of calculating the center of gravity of the fuel can only calculate the center of gravity of the fuel consumption process in a fixed order, and cannot meet the calculation requirements of the center of gravity of the fuel during the overall weight ratio refueling and the fuel transfer between tanks. Summary of the invention

[0003] The purpose of the present application is to provide a method and device for generating a center of gravity curve during the fuel refueling and consumption process of an aircraft, so as to solve or alleviate at least one problem in the background technology.

[0004] On the one hand, the technical solution of the present application is: a method for generating a center of gravity curve of an aircraft fuel refueling and consumption process, comprising:

[0005] Obtain the fuel digital model of each fuel tank unit of the aircraft and the flight state angle of the aircraft, slice the fuel digital model of each fuel unit under the flight attitude angle, and obtain the weight center of gravity slice data of the fuel digital model;

[0006] Construct a residual oil inflection point table;

[0007] Determine the required fuel state point on the center of gravity curve during the fuel filling process, describe the fuel filling sequence of each fuel tank unit fuel digital model with the remaining fuel inflection point table, and then simulate the fuel consumption process to obtain the fuel weight of each fuel tank unit at each fuel state point;

[0008] The weight center of gravity of each fuel tank unit at the current fuel quantity state point is obtained by interpolating the weight center of gravity slice data of the fuel digital model of each fuel tank unit;

[0009] The combined weight center of gravity of each fuel quantity state point is obtained according to the fuel weight center of gravity of each fuel tank unit at the current fuel quantity state point, and the center of gravity curve of the aircraft fuel filling and consumption process is drawn according to the combined weight center of gravity of each fuel quantity state point.

[0010] Preferably, the fuel digital model of each fuel unit under the flight attitude angle is sliced ​​by slicing software.

[0011] Preferably, the slicing software includes Cura and Simplify3D.

[0012] Preferably, the remaining fuel inflection point table is used to describe the logical sequence of aircraft fueling, and the description method is: if the inflection point fuel volume of only one fuel tank unit changes at a time, it means that fuel is being added in sequence; if the inflection point fuel volume of multiple fuel tank units changes at the same time, it means that fuel is being added proportionally; if the inflection point fuel volume of a certain fuel tank unit decreases and the inflection point fuel volume of another fuel tank unit increases at the same time, it means that there is fuel transfer between the fuel tank units.

[0013] Preferably, the interval granularity of the oil quantity status points is smaller than the oil quantity change granularity of the remaining oil inflection point table.

[0014] In a second aspect, the present application provides a device for generating a center of gravity curve during an aircraft fuel refueling and consumption process, comprising:

[0015] The slice data acquisition module is used to obtain the fuel digital model of each fuel tank unit of the aircraft and the flight state angle of the aircraft, slice the fuel digital model of each fuel unit under the flight attitude angle, and obtain the weight center of gravity slice data of the fuel digital model;

[0016] A residual oil inflection point table construction module is used to construct a residual oil inflection point table;

[0017] The fuel consumption simulation module is used to determine the required fuel state point on the center of gravity curve of the fuel filling process, describe the fuel filling sequence of the fuel digital model of each fuel tank unit with the remaining fuel inflection point table, and then simulate the fuel consumption process to obtain the fuel weight of each fuel tank unit at each fuel state point;

[0018] An interpolation calculation module is used to interpolate the weight center of gravity of each fuel tank unit at the current fuel quantity state point according to the weight center of gravity slice data of the fuel digital model of each fuel tank unit;

[0019] The curve drawing module is used to obtain the total weight center of gravity of each fuel quantity state point according to the fuel weight center of gravity of the current fuel quantity state point of each fuel tank unit, and draw the center of gravity curve of the aircraft fuel filling and consumption process according to the total weight center of gravity of each fuel quantity state point.

[0020] Preferably, the fuel digital model of each fuel unit under the flight attitude angle is sliced ​​by slicing software, and the slicing data acquisition module acquires the slicing data of the slicing software.

[0021] Preferably, the slicing software includes Cura and Simplify3D.

[0022] Preferably, the remaining fuel inflection point table is used to describe the logical sequence of aircraft fueling, and the description method is: if the inflection point fuel volume of only one fuel tank unit changes at a time, it means that fuel is being added in sequence; if the inflection point fuel volume of multiple fuel tank units changes at the same time, it means that fuel is being added proportionally; if the inflection point fuel volume of a certain fuel tank unit decreases and the inflection point fuel volume of another fuel tank unit increases at the same time, it means that there is fuel transfer between the fuel tank units.

[0023] Preferably, the interval granularity of the oil quantity status points is smaller than the oil quantity change granularity of the remaining oil inflection point table.

[0024] In a third aspect, the present application provides an electronic device, including:

[0025] one or more processors;

[0026] Memory;

[0027] One or more applications, wherein the one or more applications are stored in the memory and are configured to be executed by the one or more processors, and the one or more applications are configured to implement the method for generating a center of gravity curve during an aircraft fuel refueling and consumption process as described in any one of the above items.

[0028] In the last aspect, the present application provides a computer storage medium, characterized in that the computer storage medium stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by a processor to implement the method for generating a center of gravity curve of an aircraft fuel refueling and consumption process as described in any of the above items.

[0029] The method and device for calculating the center of gravity curve of the aircraft fuel filling and consumption process of the present application accurately describe the fuel filling and consumption sequence under any circumstances through the remaining fuel inflection point table, thereby calculating the center of gravity of the fuel process under any fuel tank layout and any fuel filling and consumption logical sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution provided by the present application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present application.

[0031] Figure 1 This is a schematic diagram of the method for generating a center of gravity curve during the aircraft fuel refueling and consumption process of the present application.

[0032] Figure 2 Schematic diagram of a center of gravity curve of an aircraft fuel refueling process according to an embodiment of the present application.

[0033] Figure 3 This is a schematic diagram of a device for generating a center of gravity curve during the fueling and consumption process of an aircraft according to the present application.

[0034] Figure 4 A schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the drawings in the embodiments of this application.

[0036] The present application provides a method and system for calculating a center of gravity curve of an aircraft fuel refueling and consumption process based on a residual fuel inflection point. The center of gravity curve of the aircraft fuel refueling and consumption process of the above-mentioned process can be obtained for situations such as aerial refueling, proportional fuel refueling, and fuel transfer between fuel tanks encountered when calculating the center of gravity of the fuel during the fuel refueling and consumption process of an aircraft with a new layout.

[0037] like Figure 1 As shown, the method for calculating the center of gravity curve of the aircraft fuel refueling process provided by the present application includes the following process:

[0038] S10: Obtain the fuel digital model in each fuel tank unit, determine the flight attitude angle of the aircraft, slice the fuel digital model of each fuel tank unit at the attitude angle, and obtain the weight center of gravity of each slice of the fuel digital model.

[0039] In this embodiment of the present application, the fuel digital model is a CATIA solid digital model, and the density of the fuel digital model is set to the fuel density.

[0040] The attitude angle of an aircraft in flight includes the angle of attack, the roll angle, and the yaw angle. This embodiment of the present application uses a flight angle of attack of 5° as an example for illustration.

[0041] In this application, the fuel digital model of each fuel tank unit is sliced ​​by slicing software, and the slicing software includes Cura, Simplify3D and other software.

[0042] S20: construct a residual oil inflection point table.

[0043] As shown in Table 1, it is a remaining oil inflection point table used to describe the fuel filling and consumption sequence in one embodiment of the present application. The first row of the remaining oil inflection point table is the name of the fuel tank unit, the first column is the remaining oil inflection point number at the same time, and the unit of the remaining oil amount is kilogram (kg).

[0044] The present application describes the logical sequence of aircraft refueling based on the remaining fuel inflection point table. The description method is: if the inflection point fuel volume of only one fuel tank unit changes each time, it means that the fuel is added in sequence. If the inflection point fuel volume of multiple fuel tank units changes at the same time, it means that the fuel is added proportionally. If the inflection point fuel volume of a certain fuel tank unit decreases and the inflection point fuel volume of another fuel tank unit increases at the same time, it means that there is fuel transfer between the fuel tank units.

[0045] It can be seen from the residual fuel inflection point table of the embodiment of Table 1 that the partial fuel consumption process described by the residual fuel inflection point table is:

[0046] 1) From the residual oil inflection point 1 and the residual oil inflection point 2, it can be seen that the oil consumption of the tank unit Outertank-01 is 10540-8665=1875, and the oil consumption of the tank unit Outertank-02 is 27542-23792=3750, that is, the oil consumption process in this section is proportional oil consumption - the tank unit Outertank-01 and the tank unit Outertank-02 consume oil in a ratio of 1:2;

[0047] 2) It can be seen from the residual oil inflection point 3 and the residual oil inflection point 4 that the oil tank unit Outertank-01 is transferring oil to the oil tank unit Outertank-02;

[0048] 3) It can be seen from the residual oil inflection point 12, the residual oil inflection point 13, the residual oil inflection point 14 and the residual oil inflection point 15 that the fuel in the fuel tank unit Outertank-J2 is first consumed separately in the residual oil inflection point 12-13 section, and then the fuel in the fuel tank unit Outertank-03 is consumed separately in the residual oil inflection point 13-15 section.

[0049] Table 1 Residual oil inflection point table

[0050]

[0051]

[0052] S30, determining the required fuel quantity state points on the center of gravity curve of the fuel filling process, describing the fuel filling sequence of the fuel digital model of each fuel tank unit with a remaining fuel inflection point table, and then simulating the fuel consumption process to obtain the fuel weight of each fuel tank unit at each fuel quantity state point.

[0053] For example, in this embodiment of the present application, a method of setting one oil level state point every 100kg is adopted to generate and draw the center of gravity curve of the fuel consumption process. It should be noted that the 100kg interval in the above embodiment is only an example, and the interval granularity of the oil level state point in this application can be smaller than the oil level change granularity of the remaining oil inflection point.

[0054] S40, interpolating the weight gravity center of each fuel tank unit according to the weight gravity center slice data of the fuel digital model of each fuel tank unit to obtain the fuel weight gravity center of each fuel tank unit at the current fuel quantity state point.

[0055] S50, obtaining the combined weight center of gravity of each fuel quantity state point according to the fuel weight center of gravity of the current fuel quantity state point of each fuel tank unit, and drawing the center of gravity curve of the aircraft fuel filling and consumption process according to the combined weight center of gravity of each fuel quantity state point.

[0056] like Figure 2 Shown is the center of gravity curve of the aircraft fuel refueling process drawn in this application.

[0057] The method for calculating the center of gravity curve of the aircraft fuel filling and consumption process of the present application accurately describes the fuel filling and consumption sequence under any circumstances through the remaining fuel inflection point table, thereby calculating the center of gravity of the fuel process under any fuel tank layout and any fuel filling and consumption logical sequence.

[0058] like Figure 3 As shown, on this basis, the present application also provides a device for generating a center of gravity curve during the fueling and consumption process of an aircraft, the device 100 comprising:

[0059] The slice data acquisition module 101 is used to obtain the fuel digital model of each fuel tank unit of the aircraft and the flight state angle of the aircraft, slice the fuel digital model of each fuel unit under the flight attitude angle, and obtain the weight center of gravity slice data of the fuel digital model;

[0060] A residual oil inflection point table construction module 102 is used to construct a residual oil inflection point table;

[0061] The fuel consumption simulation module 103 is used to determine the required fuel state point on the center of gravity curve of the fuel consumption process, describe the fuel consumption order of the fuel digital model of each fuel tank unit with the remaining fuel inflection point table, and then simulate the fuel consumption process to obtain the fuel weight of each fuel tank unit at each fuel state point;

[0062] An interpolation calculation module 104 is used to interpolate the weight gravity center of each fuel tank unit at the current fuel quantity state point according to the weight gravity center slice data of the fuel digital model of each fuel tank unit;

[0063] The curve drawing module 105 is used to obtain the total weight center of gravity of each fuel quantity state point according to the fuel weight center of gravity of the current fuel quantity state point of each fuel tank unit, and draw the center of gravity curve of the aircraft fuel consumption process according to the total weight center of gravity of each fuel quantity state point.

[0064] Among them, in the present application, the fuel digital model of each fuel unit under the flight attitude angle is sliced ​​by slicing software, and the above-mentioned slicing data acquisition module 101 can obtain the slicing data of the slicing software through the interface.

[0065] The center of gravity curve generating device of the refueling process in the present application can be realized based on the QTC++ programming framework, and can realize the calculation and generation of the fuel weight center of gravity curve under non-traditional refueling methods according to the active center of gravity control of the fuel, proportional refueling, cross refueling, etc. in the remaining fuel inflection point table, thereby ensuring the smooth progress of the aircraft weight and balance design work.

[0066] like Figure 4As shown, an embodiment of the present application also provides an electronic device 200, which includes a processing device 201, which can perform various appropriate actions and processes according to a program stored in a ROM (read-only memory) 202 or a program loaded from a storage device 208 to a RAM (random access memory) 203. The processing device 201 may include, for example, a general-purpose microprocessor (such as a CPU), an instruction set processor and / or a related chipset and / or a special-purpose microprocessor (for example, an application-specific integrated circuit (ASIC)), etc. The processing device 201 may also include an onboard memory for caching purposes. The processing device 201 may include a single processing unit or multiple processing units for performing different actions of the method flow according to an embodiment of the present disclosure.

[0067] In RAM 203, various programs and data required for the operation of electronic device 200 are stored. Processing device 201, ROM 202 and RAM 203 are connected to each other via bus 204. Processing device 201 performs various operations of the method flow according to the embodiment of the present application by executing the program in ROM 202 and / or RAM 203. It should be noted that the program can also be stored in one or more memories other than ROM 202 and RAM 203. Processing device 201 can also perform various operations of the method or flow according to the embodiment of the application by executing the program stored in the one or more memories.

[0068] According to an embodiment of the present application, the electronic device 200 may further include an I / O interface 205 (input / output interface), which is also connected to the bus 204. The electronic device 200 may further include one or more of the following components connected to the I / O interface 205: an input device 206 including a keyboard, a mouse, etc.; an output device 207 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage device 208 including a hard disk, etc.; and a communication device 209 including a network interface card such as a LAN card, a modem, etc. The communication device 209 performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface 205 as needed. Removable media, such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, etc., are installed on the drive as needed so that the computer program read therefrom is installed into the storage device 208 as needed.

[0069] The present application also provides a computer-readable storage medium, which may be included in the device / apparatus / system described in the above embodiments; or may exist independently without being assembled into the device / apparatus / system. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, various operations of the above methods or processes according to the embodiments of the present application are implemented.

[0070] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for generating a center of gravity curve during an aircraft fuel refueling and consumption process, characterized in that: include: Obtain the fuel digital model of each fuel tank unit of the aircraft and the flight state angle of the aircraft, slice the fuel digital model of each fuel unit under the flight attitude angle, and obtain the weight center of gravity slice data of the fuel digital model; Construct a residual oil inflection point table; Determine the required fuel state point on the center of gravity curve during the fuel filling process, describe the fuel filling sequence of each fuel tank unit fuel digital model with the remaining fuel inflection point table, and then simulate the fuel consumption process to obtain the fuel weight of each fuel tank unit at each fuel state point; The weight center of gravity of each fuel tank unit at the current fuel quantity state point is obtained by interpolating the weight center of gravity slice data of the fuel digital model of each fuel tank unit; The combined weight center of gravity of each fuel quantity state point is obtained according to the fuel weight center of gravity of each fuel tank unit at the current fuel quantity state point, and the center of gravity curve of the aircraft fuel filling and consumption process is drawn according to the combined weight center of gravity of each fuel quantity state point.

2. The method for generating a center of gravity curve during the fueling and consumption process of an aircraft as claimed in claim 1, characterized in that: The fuel digital model of each fuel unit under the flight attitude angle is sliced ​​by slicing software.

3. The method for generating a gravity center curve during the fueling and fuel consumption process of an aircraft as claimed in claim 2, characterized in that: The slicing software includes Cura and Simplify3D.

4. The method for generating a gravity center curve during the fueling and fuel consumption process of an aircraft as claimed in claim 1, characterized in that: The remaining fuel inflection point table is used to describe the logical sequence of aircraft fueling, and the description method is: if the inflection point fuel volume of only one fuel tank unit changes each time, it means that fuel is being added in sequence; if the inflection point fuel volume of multiple fuel tank units changes at the same time, it means that fuel is being added proportionally; if the inflection point fuel volume of a certain fuel tank unit decreases and the inflection point fuel volume of another fuel tank unit increases at the same time, it means that there is fuel transfer between the fuel tank units.

5. The method for generating a center of gravity curve during the fueling and fuel consumption process of an aircraft as claimed in claim 1, characterized in that: The interval granularity of the oil quantity status points is smaller than the oil quantity change granularity of the remaining oil inflection point table.

6. A device for generating a center of gravity curve during the fueling and consumption process of an aircraft, characterized in that: include: The slice data acquisition module is used to obtain the fuel digital model of each fuel tank unit of the aircraft and the flight state angle of the aircraft, slice the fuel digital model of each fuel unit under the flight attitude angle, and obtain the weight center of gravity slice data of the fuel digital model; A residual oil inflection point table construction module is used to construct a residual oil inflection point table; The fuel consumption simulation module is used to determine the required fuel state point on the center of gravity curve of the fuel filling process, describe the fuel filling sequence of the fuel digital model of each fuel tank unit with the remaining fuel inflection point table, and then simulate the fuel consumption process to obtain the fuel weight of each fuel tank unit at each fuel state point; An interpolation calculation module is used to interpolate the weight center of gravity of each fuel tank unit at the current fuel quantity state point according to the weight center of gravity slice data of the fuel digital model of each fuel tank unit; The curve drawing module is used to obtain the total weight center of gravity of each fuel quantity state point according to the fuel weight center of gravity of the current fuel quantity state point of each fuel tank unit, and draw the center of gravity curve of the aircraft fuel filling and consumption process according to the total weight center of gravity of each fuel quantity state point.

7. The device for generating a center of gravity curve during the fueling and consumption process of an aircraft as claimed in claim 1, characterized in that: The fuel digital model of each fuel unit under the flight attitude angle is sliced ​​by slicing software, and the slicing data acquisition module acquires the slicing data of the slicing software.

8. The device for generating a center of gravity curve during the fueling and consumption process of an aircraft as claimed in claim 7, characterized in that: The slicing software includes Cura and Simplify3D.

9. The device for generating a center of gravity curve during the fueling and consumption process of an aircraft as claimed in claim 1, characterized in that: The remaining fuel inflection point table is used to describe the logical sequence of aircraft fueling, and the description method is: if the inflection point fuel volume of only one fuel tank unit changes each time, it means that fuel is being added in sequence; if the inflection point fuel volume of multiple fuel tank units changes at the same time, it means that fuel is being added proportionally; if the inflection point fuel volume of a certain fuel tank unit decreases and the inflection point fuel volume of another fuel tank unit increases at the same time, it means that there is fuel transfer between the fuel tank units.

10. The device for generating a center of gravity curve during the fueling and consumption process of an aircraft as claimed in claim 1, characterized in that: The interval granularity of the oil quantity status points is smaller than the oil quantity change granularity of the remaining oil inflection point table.

11. An electronic device, characterized in that: include: one or more processors; Memory; One or more application programs, the one or more application programs are stored in the memory and configured to be executed by the one or more processors, the one or more application programs are configured to implement the method for generating a center of gravity curve during a fuel refueling process of an aircraft according to any one of claims 1 to 5.

12. A computer storage medium, characterized in that: The computer storage medium stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by the processor to implement the method for generating a center of gravity curve of an aircraft fuel refueling process according to any one of claims 1 to 5.

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