CN110175348A - A kind of alignment of rudder stock of pneumatic rudder piece determines method and device - Google Patents
A kind of alignment of rudder stock of pneumatic rudder piece determines method and device Download PDFInfo
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- CN110175348A CN110175348A CN201910267859.1A CN201910267859A CN110175348A CN 110175348 A CN110175348 A CN 110175348A CN 201910267859 A CN201910267859 A CN 201910267859A CN 110175348 A CN110175348 A CN 110175348A
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- 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
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- 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
- G06F2119/06—Power analysis or power optimisation
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- 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 invention discloses a kind of alignment of rudder stock of pneumatic rudder piece to determine that method and device, this method mainly include the following steps: the maximum deflection angle of rudder reflection θ for obtaining rudder piece of the aircraft at same Mach number Ma；The aerodynamic force F that rudder on piece is acted under each Mach number Ma is calculated according to maximum deflection angle of rudder reflection θi；Obtain aerodynamic force FiIn first position coordinate x of the position relative to initial rudderpost of rudder piecei, and obtain second position coordinate X of the initial alignment of rudder stock relative to the leading edge vertex of rudder piece；According to aerodynamic force Fi, first position coordinate xiAnd coordinate X building in the second position determines the objective function of new alignment of rudder stock；The third place coordinate x of the new alignment of rudder stock relative to rudder piece leading edge vertex is determined according to the minimum value of objective function.The maximum hinge moment for acting on rudder on piece can greatly be reduced by new alignment of rudder stock determined by the implementation present invention so that steering engine overcomes hinge moment and makes control surface deflection more easy to the position needed.
Description
Technical field
The present invention relates to aerospace fields, and in particular to a kind of alignment of rudder stock of pneumatic rudder piece determines method and device.
Background technique
In traditional Pneumatic design method, the alignment of rudder stock of rudder piece is commonly designed the 25%- in mean aerodynamic chord
Between 30%.With the development of engine technology, contemporary aircraft flight Mach number range broadens, and covers from low speed, subsonics
Speed, supersonic speed to hypersonic speed.Within the scope of so wide in range flight Mach number, rudder on piece presses heart position mobile clearly,
And the air force of rudder on piece is acted on as the increase of Mach number linearly increases variation.At this point, if also by the position of rudderpost
It installs between the 25%-30% of rudder piece mean aerodynamic chord, will necessarily cause in the case where some big Mach (Ma) is several, rudder on piece
There is very big hinge moment, it is more likely that use loading range more than what steering engine was able to bear.In order to solve traditional, pneumatic
Existing hidden danger is designed, the prior art counts the Pneumatic pressure heart position under different conditions on rudder face, by rudder by statistical method
Shaft position is arranged on average air dynamic pressure heart position, to reduce torque.But the calculating Average aerodynamic used in the prior art
The method for pressing heart position, when Pneumatic pressure heart positional fluctuation is larger, the deviation between some extreme numerical value and average value is larger,
Only alignment of rudder stock is arranged in average air dynamic pressure heart position, hinge can not be effectively reduced when Pneumatic pressure heart positional offset amount is big
Torque, and when exactly Pneumatic pressure heart positional offset amount is big will appear very big hinge moment, be well over that steering engine can bear makes
With loading range, also, only it is difficult to accurately embody the reality of each Pneumatic pressure heart position on rudder face by average air dynamic pressure heart position
Situation is easy to cause the deviation of statistical method acquired results and actual numerical value larger.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming in the prior art can not effectively reduce different Mach number
The defect for the maximum hinge moment that lower rudder piece is born, so that the alignment of rudder stock for providing a kind of pneumatic rudder piece determines method and device.
The alignment of rudder stock that first aspect present invention provides a kind of pneumatic rudder piece determines method, comprising: obtains aircraft and exists
The maximum deflection angle of rudder reflection θ of rudder piece under same Mach number Ma, in specific implementation, in order to make the new alignment of rudder stock of subsequent calculating
More preferably, when acquisition aircraft is flown windward with leeward flight under same Mach number, the respective maximum deflection angle θ of rudder piece；According to
The maximum deflection angle of rudder reflection θ calculates the aerodynamic force F that the rudder on piece is acted under each Mach number Mai,；Obtain the gas
Power FiIn first position coordinate x of the position relative to initial rudderpost of the rudder piecei, and obtain the initial alignment of rudder stock
The second position coordinate X on the leading edge vertex relative to the rudder piece；According to the aerodynamic force Fi, first position coordinate xiAnd second
Position coordinates X building determines the objective function of new alignment of rudder stock；New alignment of rudder stock is determined according to the minimum value of the objective function
The third place coordinate x relative to the rudder piece leading edge vertex.
In one embodiment, the alignment of rudder stock of above-mentioned pneumatic rudder piece determines the number of the Mach number Ma acquired in method
Amount is two or more.
In one embodiment, the alignment of rudder stock of above-mentioned pneumatic rudder piece determines that the objective function of method building isWherein, i, n are positive integer, i≤n.
Second aspect of the present invention provides a kind of alignment of rudder stock determining device of pneumatic rudder piece, comprising: maximum deflection rudder is inclined
Corner Block List Representation, for obtaining aircraft at same Mach number Ma, for aircraft in flight windward and leeward flight, rudder piece is respective
Maximum deflection angle of rudder reflection θ；Aerodynamics evaluation module, for calculating each Mach number Ma according to the maximum deflection angle of rudder reflection θ
Under act on the aerodynamic force F of the rudder on piecei；Position coordinates obtain module, for obtaining the aerodynamic force FiIn the rudder piece
First position coordinate x of the position relative to initial rudderposti, and before obtaining the initial alignment of rudder stock relative to the rudder piece
The second position coordinate X on edge vertex；Objective function determining module, for according to the aerodynamic force Fi, first position coordinate xiAnd the
Two position coordinates X building determines the objective function of new alignment of rudder stock；New position coordinates determining module, for according to the target letter
Several minimum values determines position coordinates of the new alignment of rudder stock relative to the rudder piece leading edge vertex.
In one embodiment, the quantity of the Mach number Ma acquired in above-mentioned maximum deflection angle of rudder reflection module be two or
It is more than two.
In one embodiment, above-mentioned objective function are as follows: Wherein, i, n are positive integer, i≤n.
Third aspect present invention provides a kind of computer equipment, comprising: at least one processor；And with it is described at least
The memory of one processor communication connection；Wherein, the memory be stored with can by least one described processor execute
Instruction, described instruction is executed by least one described processor, thereby executing any one embodiment institute of above-mentioned first aspect
The alignment of rudder stock for the pneumatic rudder piece stated determines method.
Fourth aspect present invention provides a kind of computer readable storage medium, which is characterized in that described computer-readable
Storage medium is stored with computer instruction, and the computer instruction is any one for making the computer execute above-mentioned first aspect
The alignment of rudder stock of pneumatic rudder piece described in kind embodiment determines method.
Technical solution of the present invention has the advantages that
1. the alignment of rudder stock of pneumatic rudder piece provided by the invention determines method and device, aircraft is acquired in same Mach
The maximum deflection angle of rudder piece under several, the hinge moment for acting on rudder on piece at this time is also more maximum, by solving under each Mach number
The minimum value of the objective function obtained when numerical value maximum case is now in any different Mach number to acquire new alignment of rudder stock
Under aircraft, the maximum hinge moment that rudder piece is integrally born greatly reduces.
2. the alignment of rudder stock of pneumatic rudder piece provided by the invention determines method and device, the acquired Mach number Ma's
Quantity is two or more, and acquisition Mach number quantity is more, and the new alignment of rudder stock acquired is better, reduces under different Mach number
The effect of maximum hinge moment is better.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the alignment of rudder stock of pneumatic rudder piece in the embodiment of the present invention determines the structural frames of one specific embodiment of method
Figure；
Fig. 2 is the schematic diagram that the alignment of rudder stock of pneumatic rudder piece in the embodiment of the present invention determines a specific example of method；
Fig. 3 is the structural frames of a specific example of the alignment of rudder stock determining device of pneumatic rudder piece in the embodiment of the present invention
Figure.
Fig. 4 is the structural block diagram of a specific example of computer equipment in the embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1
The alignment of rudder stock that first aspect present invention provides a kind of pneumatic rudder piece determines method, as depicted in figs. 1 and 2, including
Following steps:
Step S11: the maximum deflection angle of rudder reflection θ of rudder piece 1 of the aircraft at same Mach number Ma is obtained；In any Mach
Under number Ma, rudder piece 1 is influenced to have certain deflection by aerodynamic force, and what is obtained in the embodiment of the present invention is in this Mach number
Ma lower rudder piece 1 deflects into angle when maximum, in specific implementation, in order to make the new alignment of rudder stock of subsequent calculating more preferably, same
When acquisition aircraft is flown windward with leeward flight under one Mach number, the respective maximum deflection angle θ of rudder piece 1；
Step S12: it is calculated according to the maximum deflection angle of rudder reflection θ and is acted on the rudder piece 1 under each Mach number Ma
Aerodynamic force Fi, the hinge moment maximum on steering engine is acted at this time；
Step S13: the aerodynamic force F is obtainediIn first relative to initial rudderpost 13 of position 12 of the rudder piece 1
Set coordinate xi, and the second position coordinate X on leading edge vertex 11 of 13 position of initial rudderpost relative to the rudder piece is obtained,
In one specific embodiment, above-mentioned FiAnd xiIt can be the related analysis software (such as CFD analysis software) by computational fluid dynamics
It acquires；
Step S14: according to the aerodynamic force Fi, first position coordinate xiAnd coordinate X building in the second position determines new rudderpost position
The objective function set:Wherein, i, n be positive integer, i≤n, i's
Value is the quantity of selected Mach number Ma, flies windward and leeward flight because to obtain aircraft at same Mach number Ma
When aerodynamic force FiWith aerodynamic force position and initial rudderpost distance xi, so the value of n is twice of Mach number Ma quantity, i.e. n
=2i.；
Step S15: determine new alignment of rudder stock relative to the rudder piece leading edge vertex according to the minimum value of the objective function
11 the third place coordinate x.
In one embodiment, to this hair for acquiring the position of new rudderpost by the data under two Mach number Ma
The alignment of rudder stock of the pneumatic rudder piece of bright embodiment determines that the implementation procedure of method is illustrated.In this embodiment, setting is initial
Distance X of the alignment of rudder stock away from leading edge vertex is 89mm.
Obtain two Mach number Ma=1.05 and Mach number Ma=3.0.When Mach number Ma=1.05, when aircraft flight,
The hinge moment that rudder piece is subject to windward is 8.4976N.M, aerodynamic force F1=573.0194N, pressure heart position and initial alignment of rudder stock
Distance x1=15.83mm；The hinge moment that leeward rudder piece is subject to is 5.1335N.M, aerodynamic force F2=524.9633N presses heart position
It sets and initial alignment of rudder stock distance x2=10.78mm.
When Mach number Ma=3.0, when aircraft flight, the hinge moment that rudder piece is subject to windward is 18.0666N.M, pneumatically
Power F3=2878.653N presses heart position and initial alignment of rudder stock distance x3=7.28mm；The hinge moment that leeward rudder piece is subject to
For 7.2051N.M, aerodynamic force F4=1171.175N presses heart position and initial alignment of rudder stock distance x4=5.23mm.
The alignment of rudder stock of the pneumatic rudder piece proposed using the embodiment of the present invention determines method, lists objective functionBy the data of above-mentioned acquisition substitute into objective function obtain F (x)=|
573.0194×(x-(89-15.83))+524.9633×(x-(89-10.78))+2878.653×(x-(89-7.28))+
1171.175 × (x- (89-5.23)) |, by solving the minimum value of above-mentioned objective function, new alignment of rudder stock and rudder piece can be obtained
The distance x=81.15mm on leading edge vertex.
When rudderpost is arranged at away from leading edge vertex 81.15mm, the hinge moment that rudder piece is subject to, Mach number Ma are measured again
When=1.05, when aircraft flight, the hinge moment that rudder piece is subject to windward is 3.8809N.M；The hinge power that leeward rudder piece is subject to
Square is 0.9081N.M.When Mach number Ma=3.0, when aircraft flight, the hinge moment that rudder piece is subject to windward is-
6.5472N.M；The hinge moment that leeward rudder piece is subject to is -3.9018N.M.
And the prior art is used, alignment of rudder stock is arranged in average air dynamic pressure heart position, new alignment of rudder stock and rudder piece are obtained
Distance x=(the 73.17+78.22+81.72+83.77)/4=79.22mm on leading edge vertex.
When rudderpost is arranged at away from leading edge vertex 79.22mm, the hinge moment that rudder piece is subject to, Mach number are measured again
Ma1When=1.05, when aircraft flight, the hinge moment that rudder piece is subject to windward is 1.343N.M；The hinge that leeward rudder piece is subject to
Torque is rudder -0.132N.M.Mach number Ma1When=3.0, when aircraft flight, the hinge moment that rudder piece is subject to windward is-
8.0598N.M；The hinge moment that leeward rudder piece is subject to is -6.3752N.M.
Two methods are comprehensively compared, rudderpost is mounted on by the way that on the calculated position of the prior art, rudder piece is subject to most
Big hinge moment is -8.0598N.M, and rudderpost is mounted on calculated position through the invention, the maximum hinge that rudder piece is subject to
Chain torque is -6.5472N.M.It follows that the present invention further reduces maximum hinge moment numerical value compared with the prior art.
The alignment of rudder stock of pneumatic rudder piece provided in an embodiment of the present invention determines method, acquires aircraft in same Mach number
Under rudder piece maximum deflection angle, the steering engine hinge moment to be overcome is also maximum at this time, pass through solve it is maximum under each Mach number
The minimum value of the objective function obtained when situation is to acquire new alignment of rudder stock, the flight being now under any different Mach number
Device, the maximum hinge moment that rudder piece is born greatly reduce.
Optionally, in some embodiments of the invention, the alignment of rudder stock of the pneumatic rudder piece determines institute acquired in method
The quantity for stating Mach number Ma is two or more, and acquisition Mach number quantity is more, and the new alignment of rudder stock acquired is better, different
The effect for reducing maximum hinge moment under Mach number is better.
Embodiment 2
The embodiment of the present invention also provides a kind of alignment of rudder stock determining device 2 of pneumatic rudder piece, as shown in figure 3, including as follows
Structure: maximum deflection angle of rudder reflection module 21 is flown and leeward windward for obtaining aircraft aircraft at same Mach number Ma
Respective rudder piece maximum deflection angle of rudder reflection θ, the correlation that detailed content can be found in the step S11 of above method embodiment are retouched when flight
It states；Aerodynamics evaluation module 22, for according to being acted under each Mach number Ma of maximum deflection angle of rudder reflection θ calculating
The aerodynamic force F of rudder on piecei, detailed content can be found in the associated description of the step S12 of above method embodiment；Position coordinates obtain
Module 22, for obtaining the aerodynamic force FiIn first position coordinate x of the position relative to initial rudderpost of the rudder piecei, and
Second position coordinate X of the initial alignment of rudder stock relative to the leading edge vertex of the rudder piece is obtained, detailed content can be found in
State the associated description of the step S13 of embodiment of the method；Objective function determining module 24, for according to the aerodynamic force Fi, first
Position coordinates xiAnd coordinate X building in the second position determines the objective function of new alignment of rudder stock, detailed content can be found in the above method
The associated description of the step S14 of embodiment；New position coordinates determining module 25, it is true for the minimum value according to the objective function
Fixed position coordinates of the new alignment of rudder stock relative to the rudder piece leading edge vertex.
The alignment of rudder stock determining device of pneumatic rudder piece provided in an embodiment of the present invention, acquires aircraft in same Mach number
Under rudder piece maximum deflection angle, the steering engine hinge moment to be overcome is also maximum at this time, the worst under each Mach number by solving
The minimum value of the objective function obtained when situation is to acquire new alignment of rudder stock, the flight being now under any different Mach number
Device, the maximum hinge moment that rudder piece is born greatly reduce.
Optionally, in some embodiments of the invention, the Mach number acquired in maximum deflection angle of rudder reflection module 21
The quantity of Ma is that two or more acquisition Mach number quantity are more, and the new alignment of rudder stock acquired is more accurate, different Mach number
The lower effect for reducing maximum hinge moment hinge moment is better.
Specifically, in some embodiments of the invention, objective function in the alignment of rudder stock determining device of the pneumatic rudder piece
Objective function determined by determining module 24 are as follows: Wherein, i, n are
Positive integer, the value of i≤n, i are the quantity of selected Mach number Ma, are met because to measure aircraft at same Mach number Ma
Aerodynamic force F when wind flight and leeward flightiWith aerodynamic force position and initial rudderpost distance xi, so the value of n is Mach number
Twice of Ma quantity, i.e. n=2i.
Embodiment 3
Third aspect present invention provides a kind of computer equipment, as shown in figure 4, the computer equipment mainly include one or
Multiple processors 31 and memory 32, in Fig. 3 by taking a processor 31 as an example.
The computer equipment can also include: input unit 33 and output device 34.
Processor 31, memory 32, input unit 33 and output device 34 can be connected by bus or other modes,
In Fig. 3 for being connected by bus.
Processor 31 can be central processing unit (Central Processing Unit, CPU).Processor 31 can be with
For other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
The combination of the chips such as discrete hardware components or above-mentioned all kinds of chips.General processor can be microprocessor or the processing
Device is also possible to any conventional processor etc..Memory 32 may include storing program area and storage data area, wherein storage
It program area can application program required for storage program area, at least one function；Storage data area can be stored according to pneumatic rudder
The alignment of rudder stock determining device of piece uses created data etc..In addition, memory 32 may include that high random access is deposited
Reservoir, can also include non-transient memory, a for example, at least disk memory, flush memory device or other are non-transient solid
State memory device.In some embodiments, it includes the memory remotely located relative to processor 31 that memory 32 is optional, these
Remote memory can be by being connected to the network to the alignment of rudder stock determining device of pneumatic rudder piece.It is defeated that input unit 33 can receive user
The computation requests (or other numbers or character information) entered, and generate related with the alignment of rudder stock determining device of pneumatic rudder piece
Key signals input.Output device 34 may include that display screen etc. shows equipment, to export calculated result.
Embodiment 4
Fourth aspect present invention provides a kind of computer readable storage medium, which calculates
Machine instruction, the computer storage medium are stored with computer executable instructions, which can be performed above-mentioned
The alignment of rudder stock of pneumatic rudder piece in any means embodiment determines method.Wherein, the storage medium can for magnetic disk, CD,
Read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory,
RAM), flash memory (Flash Memory), hard disk (Hard Disk Drive, abbreviation: HDD) or solid state hard disk (Solid-
State Drive, SSD) etc.；The storage medium can also include the combination of the memory of mentioned kind.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (8)
1. a kind of alignment of rudder stock of pneumatic rudder piece determines method characterized by comprising
Obtain the maximum deflection angle of rudder reflection θ of rudder piece of the aircraft at same Mach number Ma；
The aerodynamic force F that the rudder on piece is acted under each Mach number Ma is calculated according to the maximum deflection angle of rudder reflection θi；
Obtain the aerodynamic force FiIn first position coordinate x of the position relative to initial rudderpost of the rudder piecei, and obtain institute
State second position coordinate X of the initial alignment of rudder stock relative to the leading edge vertex of the rudder piece；
According to the aerodynamic force Fi, first position coordinate xiAnd coordinate X building in the second position determines the target letter of new alignment of rudder stock
Number；
Determine that new alignment of rudder stock is sat relative to the third place on the rudder piece leading edge vertex according to the minimum value of the objective function
Mark x.
2. the alignment of rudder stock of pneumatic rudder piece according to claim 1 determines method, which is characterized in that
The quantity of the acquired Mach number Ma is two or more.
3. the alignment of rudder stock of pneumatic rudder piece according to claim 1 determines method, which is characterized in that the objective function
Are as follows:Wherein, i, n are positive integer, i≤n.
4. a kind of alignment of rudder stock determining device of pneumatic rudder piece characterized by comprising
Maximum deflection angle of rudder reflection module, for obtaining the maximum deflection angle of rudder reflection θ of rudder piece of the aircraft at same Mach number Ma；
Aerodynamics evaluation module, for according to being acted under each Mach number Ma of maximum deflection angle of rudder reflection θ calculating
The aerodynamic force F of rudder on piecei；
Position coordinates obtain module, for obtaining the aerodynamic force FiThe rudder piece position relative to initial rudderpost
One position coordinates xi, and obtain second position coordinate X of the initial alignment of rudder stock relative to the leading edge vertex of the rudder piece；
Objective function determining module, for according to the aerodynamic force Fi, first position coordinate xiAnd coordinate X building in the second position is true
The objective function of fixed new alignment of rudder stock；
New position coordinates determining module, for determining new alignment of rudder stock relative to the rudder according to the minimum value of the objective function
The position coordinates on piece leading edge vertex.
5. the alignment of rudder stock determining device of pneumatic rudder piece according to claim 4, which is characterized in that
The quantity of the Mach number Ma acquired in the maximum deflection angle of rudder reflection module is two or more.
6. a kind of alignment of rudder stock determining device of pneumatic rudder piece according to claim 5, which is characterized in that the target letter
Number are as follows:Wherein, i, n are positive integer, i≤n.
7. a kind of computer equipment characterized by comprising
At least one processor；And the memory being connect at least one described processor communication；Wherein, the memory is deposited
The instruction that can be executed by least one described processor is contained, described instruction is executed by least one described processor, to hold
The alignment of rudder stock of row pneumatic rudder piece as claimed in any one of claims 1-3 determines method.
8. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, the rudder that the computer instruction is used to that the computer to be made to execute pneumatic rudder piece as claimed in any one of claims 1-3
Shaft position determines method.
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| CN111125832A (en) * | 2019-12-11 | 2020-05-08 | 上海卫星工程研究所 | Method for acquiring position and area of pressure center of windward side of spacecraft |
| CN111125832B (en) * | 2019-12-11 | 2023-11-10 | 上海卫星工程研究所 | Method for acquiring windward side core pressing position and area of spacecraft |
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| CN110175348B (en) | 2020-09-08 |
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