CN113536469B - Output torque calculation method of driving device - Google Patents
Output torque calculation method of driving device Download PDFInfo
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- CN113536469B CN113536469B CN202110886185.0A CN202110886185A CN113536469B CN 113536469 B CN113536469 B CN 113536469B CN 202110886185 A CN202110886185 A CN 202110886185A CN 113536469 B CN113536469 B CN 113536469B
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- driving
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- output torque
- driving device
- drive
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The application belongs to the field of aircraft structural design, and particularly relates to an output torque calculation method of a driving device. Comprising the following steps: step one, judging whether the overall driving capability of the driving device meets the requirement, and if so, entering a step two; step two, obtaining the load of each supporting structure of the driving component under the support of the mechanical structure, and obtaining the driving capability of each driving unit of the driving device, wherein the driving units are in one-to-one correspondence with the supporting structures; judging whether the driving capability of each driving unit of the driving device is larger than the load of the corresponding supporting structure, if so, determining the output moment of the corresponding driving unit according to the load of each supporting structure; if not, the output torque of each drive unit of the drive device is matched again. According to the application, the load of the supporting structure is calculated through omnibearing multidimensional calculation, so that the risk that the structure does not meet the strength design requirement is reduced.
Description
Technical Field
The application belongs to the field of aircraft structural design, and particularly relates to an output torque calculation method of a driving device.
Background
Along with development of airplane design technology and urgent design requirements for light structure, the novel driving device for the movable part is gradually applied, and has the advantages of small occupied space, simple and direct design of a connecting support structure of the driving part and light structure weight. However, the load calculation of the multi-degree static and indefinite supporting structure is brought with new technical problems due to the limitation of the driving capability of the novel driving device.
It is therefore desirable to have a solution that overcomes or at least alleviates at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The application aims to provide a method for calculating the output torque of a driving device, which aims to solve at least one problem existing in the prior art.
The technical scheme of the application is as follows:
a method of calculating an output torque of a driving device for effecting driving of a support structure of a driving member, comprising:
step one, judging whether the overall driving capability of the driving device meets the requirement, and if so, entering a step two;
step two, obtaining the load of each supporting structure of the driving component under the support of the mechanical structure, and obtaining the driving capability of each driving unit of the driving device, wherein the driving units are in one-to-one correspondence with the supporting structures;
step three, judging whether the driving capability of each driving unit of the driving device is larger than the load of the corresponding supporting structure,
if yes, determining output moment of a corresponding driving unit according to the load of each supporting structure;
if not, the output torque of each drive unit of the drive device is matched again.
In at least one embodiment of the application, the drive means is an electrically and hydraulically operated distributed lug structure.
In at least one embodiment of the application, the drive member includes a leading edge control surface and a weapon bay door, and the support structure is a support rocker arm.
In at least one embodiment of the application, the drive means comprise 4 drive units and the drive member comprises 4 support rocker arms.
In at least one embodiment of the present application, in step one, the determining whether the overall driving capability of the driving device meets the requirement specifically includes:
s101, obtaining the maximum output torque of a driving device;
s102, acquiring torque of a rotating shaft of the driving part when a load is applied to the driving part;
s103, judging whether the maximum output torque of the driving device is larger than the torque of the rotating shaft of the driving component, if so, the overall driving capability of the driving device meets the requirement, and if not, the overall driving capability of the driving device does not meet the requirement.
In at least one embodiment of the present application, in S102, the obtaining the torque of the rotation shaft of the driving member when the load is applied to the driving member includes:
constructing a finite element model of the driving component;
applying distributed pneumatic load to a finite element model of the driving part, and acquiring the total load born by the driving part and the pressing center position;
and calculating the moment of the rotating shaft of the driving part according to the total load and the pressing center position.
In at least one embodiment of the present application, in step three, the re-matching the output torque of each driving unit of the driving device includes:
by increasing the output torque of the other drive units, a compensation of the output torque of the drive unit with a drive capacity not greater than the load of the corresponding support structure is achieved.
The application has at least the following beneficial technical effects:
the output torque calculation method of the driving device can realize the refinement of the strength design load calculation, and the risk that the structure does not meet the strength design requirement is reduced by calculating the supporting structure load in all-dimensional and multidimensional mode.
Drawings
Fig. 1 is a flowchart of a method for calculating an output torque of a driving device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application become more apparent, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present application.
The application is described in further detail below with reference to fig. 1.
The application provides a method for calculating output torque of a driving device, which is used for driving a supporting structure of a driving component, and comprises the following steps:
step one, judging whether the overall driving capability of the driving device meets the requirement, and if so, entering a step two;
step two, acquiring the load of each supporting structure of the driving component under the support of the mechanical structure and the driving capability of each driving unit of the driving device, wherein the driving units are in one-to-one correspondence with the supporting structures;
step three, judging whether the driving capability of each driving unit of the driving device is larger than the load of the corresponding supporting structure,
if yes, determining output moment of a corresponding driving unit according to the load of each supporting structure;
if not, the output torques of the individual drive units of the drive are matched again.
The output torque calculation method of the driving device of the application is characterized in that the driving device is of a distributed lug structure which is operated by electricity and hydraulic pressure, and can drive the front edge control surface and the weapon cabin door. The drive member comprises a leading edge control surface and a weapon bay door, and the support structure may be a support rocker arm, the support structure providing support to the drive member by means of mechanical structural support.
According to the output torque calculation method of the driving device, firstly, the torque of the severe load to the rotating shaft of the driving component is calculated according to the severe load state of the driving component, and compared with the driving capability of the driving device, whether the driving capability of the novel driving device meets the requirement is determined. Specifically, in the first step, determining whether the overall driving capability of the driving device meets the requirement includes:
s101, obtaining the maximum output torque of a driving device;
s102, acquiring torque of a rotating shaft of the driving part when a load is applied to the driving part;
s103, judging whether the maximum output torque of the driving device is larger than the torque of the rotating shaft of the driving component, if so, the overall driving capability of the driving device meets the requirement, and if not, the overall driving capability of the driving device does not meet the requirement.
In S102, acquiring the torque of the driving member rotating shaft when the load is applied to the driving member includes:
constructing a finite element model of the driving part;
applying distributed pneumatic load to a finite element model of the driving part, and acquiring the total load born by the driving part and the pressing center position;
and calculating the moment of the rotating shaft of the driving part according to the total load and the pressing center position.
In this embodiment, the total load multiplied by the distance from the pressure to the shaft is the torque of the shaft of the driving member.
In the third step, re-matching the output torque of each driving unit of the driving device includes:
according to the output torque calculation method of the driving device, the output torque of the driving unit with the driving capability not larger than the load of the corresponding supporting structure is compensated by increasing the output torque of other driving units.
In one embodiment of the application, the total driving capacity of the novel driving device, namely the maximum output torque, is 110 KN.m, the torque of the serious load of a certain driving part to the rotating shaft of the driving part is calculated to be 100 KN.m, and the total driving capacity of the driving device is larger than the torque of the serious load of the certain driving part to the rotating shaft of the driving part, so that the total driving capacity of the novel driving device meets the requirement. In this embodiment, a certain driving part is supported by 4 supporting rocker arms, and the novel driving device includes 4 driving units, and each supporting rocker arm is connected with a corresponding driving unit. Assuming that the supporting rocker arm is in pure mechanical connection with the novel driving device, simulating rigidity of the supporting rocker arm and applying constraint conditions in a finite element model according to a traditional multi-degree static uncertainty calculation method, extracting load of the supporting rocker arm, and obtaining the load of each supporting rocker arm as follows: 40 KN.m, 30 KN.m, 20 KN.m, 10 KN.m. The driving capacities of the four driving units of the novel driving device are respectively as follows: 40 KN.m, 20 KN.m, 30 KN.m, 20 KN.m. By comparing with the rocker arm supporting load, it is known that the driving capability of the driving units of the 1 st, 3 rd and 4 th driving devices satisfies the requirement, but the driving capability of the 2 nd driving unit is insufficient. The output torque of each driving unit of the driving device needs to be re-matched, the 2 nd driving unit needs to bear the load of 30 KN.m, and the maximum driving capacity is 20 KN.m, so the rest 10 KN.m load is borne by the 3 rd driving unit, the 3 rd driving unit finally bears the load of 30 KN.m by adding the original borne load, and the driving capacity of the 3 rd driving unit is 30 KN.m, so the requirement is just met. Finally, the output torques of the 4 drive units of the novel drive device can be based on that the load finally born by each drive unit is respectively: 40 KN.m, 20 KN.m, 30 KN.m, 10 KN.m. Thereby realizing the omnibearing, multidimensional and fine design load of the strength.
The output torque calculation method of the driving device can realize the refinement of the strength design load calculation, and the risk that the structure does not meet the strength design requirement is reduced by calculating the supporting structure load in all-dimensional and multidimensional mode.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (5)
1. A method of calculating an output torque of a driving device for driving a support structure of a driving member, comprising:
step one, judging whether the overall driving capability of the driving device meets the requirement, and if so, entering a step two;
the judging whether the overall driving capability of the driving device meets the requirement or not specifically comprises the following steps:
s101, obtaining the maximum output torque of a driving device;
s102, acquiring torque of a rotating shaft of the driving part when a load is applied to the driving part;
s103, judging whether the maximum output torque of the driving device is larger than the torque of the rotating shaft of the driving component, if so, the overall driving capability of the driving device meets the requirement, and if not, the overall driving capability of the driving device does not meet the requirement;
step two, obtaining the load of each supporting structure of the driving component under the support of the mechanical structure, and obtaining the driving capability of each driving unit of the driving device, wherein the driving units are in one-to-one correspondence with the supporting structures;
step three, judging whether the driving capability of each driving unit of the driving device is larger than the load of the corresponding supporting structure,
if yes, determining output moment of a corresponding driving unit according to the load of each supporting structure;
if not, re-matching the output torque of each driving unit of the driving device;
the re-matching of the output torques of the individual drive units of the drive device comprises:
by increasing the output torque of the other drive units, a compensation of the output torque of the drive unit with a drive capacity not greater than the load of the corresponding support structure is achieved.
2. The method of claim 1, wherein the drive device is a distributed lug configuration for electrical and hydraulic actuation.
3. The method of calculating the output torque of a drive unit according to claim 2, wherein the drive member includes a leading edge control surface and a weapon bay door, and the support structure is a support rocker arm.
4. A method of calculating the output torque of a drive device according to claim 3, wherein the drive device comprises 4 drive units and the drive member comprises 4 support arms.
5. The method of calculating an output torque of a driving apparatus according to claim 1, wherein in S102, the obtaining a torque of a rotation shaft of the driving member when the load is applied to the driving member includes:
constructing a finite element model of the driving component;
applying distributed pneumatic load to a finite element model of the driving part, and acquiring the total load born by the driving part and the pressing center position;
and calculating the moment of the rotating shaft of the driving part according to the total load and the pressing center position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110886185.0A CN113536469B (en) | 2021-08-03 | 2021-08-03 | Output torque calculation method of driving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110886185.0A CN113536469B (en) | 2021-08-03 | 2021-08-03 | Output torque calculation method of driving device |
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| CN113536469A CN113536469A (en) | 2021-10-22 |
| CN113536469B true CN113536469B (en) | 2023-10-10 |
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