CN113094814B - Method and device for ship stealth performance optimization - Google Patents
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Abstract
The application relates to the technical field of ship design, and discloses a method for optimizing stealth performance of a ship, which comprises the following steps: simulating and calculating radar scattering cross sections RCS of all parts of the ship; distributing stealth performance indexes of all the components according to simulation calculation results; and adjusting the stealth performance of part or all of the parts until each part meets the stealth performance index. According to the method, radar scattering characteristics of each independent component of the ship can be analyzed according to each independent component under a preset simulation coding control scheme, the whole stealth performance preset index of the ship is thinned to each independent component, stealth performance optimization is carried out on each independent component, and therefore stealth performance of the ship and the stealth equipment exposed on the surface of the ship is systematically optimized. The application also discloses a device for ship stealth performance optimization.
Description
Technical Field
The application relates to the technical field of ship design, for example, to a method and a device for ship stealth performance optimization.
Background
At present, a water surface ship is a complex platform integrating multiple functions, and in the radar wave stealth design of the ship, the radar wave stealth design is compatible and developed by taking the function of the water surface ship as a main purpose, so that the radar wave stealth performance of the whole ship is usually required to be optimized after the ship surface arrangement of the ship is completed. The surface of the ship has the conductor structure characteristics with regular appearance and complex local fine structure characteristics, and the association relationship between different structures brings great difficulty to the stealth design of the whole ship.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
at present, a method for systematically developing stealth performance optimization of various exposed devices on ships and surfaces of the ships is not available.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a method and a device for optimizing the stealth performance of a ship, so as to systematically optimize the stealth performance of each exposed device on the surface of the ship and the ship.
In some embodiments, the method comprises:
simulating and calculating radar scattering cross sections RCS of all parts of the ship; distributing stealth performance indexes of all the components according to simulation calculation results; and adjusting the stealth performance of part or all of the parts until each part meets the stealth performance index.
In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, characterized in that the processor is configured to perform a method for ship stealth performance optimization when running the program instructions
The method for optimizing the stealth performance of the ship and the device for optimizing the stealth performance of the ship provided by the embodiment of the disclosure can realize the following technical effects:
according to the method, radar scattering characteristics of each independent component of the ship can be analyzed according to each independent component under a preset simulation coding control scheme, the whole stealth performance preset index of the ship is thinned to each independent component, stealth performance optimization is carried out on each independent component, and therefore stealth performance of the ship and the stealth equipment exposed on the surface of the ship is systematically optimized.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic illustration of a method for ship stealth performance optimization provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a target characteristic simulation coding control table for each component of a ship provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a method for assigning stealth performance metrics for components according to simulation results provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a method for computing stealth performance metrics corresponding to components by adjusting RCS of components with contribution greater than a threshold according to an embodiment of the disclosure;
FIG. 5 is a schematic diagram of a method for readjusting the RCS of each component until the sum of the readjusted RCS of each component and the RCS of each component not readjusted is less than or equal to the stealth performance index requirement of the ship as a whole, provided by embodiments of the present disclosure;
FIG. 6 is a schematic diagram of a method for adjusting stealth performance of some or all of the components until each component meets its stealth performance index provided by an embodiment of the present disclosure;
fig. 7 is a block diagram of another apparatus for ship stealth performance optimization provided by an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
At present, a water surface ship is a complex platform integrating multiple functions, and in the radar wave stealth design of the ship, the radar wave stealth design is compatible and developed by taking the function of the water surface ship as a main purpose, so that the radar wave stealth performance of the whole ship is usually required to be optimized after the ship surface arrangement of the ship is completed. The surface of the ship has the conductor structure characteristics with regular appearance and complex local fine structure characteristics, and the association relationship between different structures brings great difficulty to the stealth design of the whole ship.
At present, a method for systematically developing stealth performance optimization of various exposed devices on ships and surfaces of the ships is not available. The scheme overcomes the defects of the prior art and provides the method for optimizing the stealth performance of the ship.
Referring to fig. 1, an embodiment of the present disclosure provides a method for ship stealth performance optimization, including:
s01, simulating and calculating radar scattering cross sections RCS of all parts of the ship.
S02, distributing stealth performance indexes of all the components according to simulation calculation results.
S03, adjusting stealth performance of part or all of the components until each component meets stealth performance indexes.
Here, the RCS values of the respective components of the ship are obtained by configuring the target characteristic simulation coding control table of the respective components. And calculating and distributing stealth performance indexes corresponding to all the parts according to the simulation calculation result and the preset integral stealth performance index of the ship. Judging whether each part meets the stealth performance index of the part or not, and adjusting the stealth performance of the part which is not met once or a plurality of times until each part meets the stealth performance index of the part.
By adopting the method for optimizing the stealth performance of the ship, which is provided by the embodiment of the invention, the radar scattering characteristics of each independent component of the ship can be analyzed according to each independent component under the preset simulation coding control scheme, and the stealth performance of each independent component is optimized by refining the integral stealth performance preset index of the ship to each independent component and performing stealth performance optimization on each independent component, so that the stealth performance of each ship and each exposed device on the surface of the ship is systematically optimized.
Optionally, the simulation calculation of the radar cross section RCS of each component of the ship comprises configuration of a ship target characteristic simulation coding control table; and obtaining RCS of each component according to the simulation coding control table.
Optionally, the simulation coding control table for configuring the target characteristics of each component of the ship comprises a simulation coding control table based on the application material characteristics of each component and radar wave conduction media, and referring to fig. 2, an embodiment of the disclosure provides a schematic diagram of the simulation coding control table for the target characteristics of each component of the ship, wherein 0 represents an air medium, 1 represents an ideal metal medium, 2 represents an ideal absorber medium, and 3 represents a specific wave-absorbing material medium.
Here, in the setting of the data in fig. 2, the simulation coding control table considering the shielding relation between the components on the surface of the ship is set, the component to be calculated is set as an ideal metal medium, the component having the shielding relation with the component to be calculated is set as an ideal absorber medium, the component having no shielding relation with the component to be calculated is set as an air medium, and in the case that the component having the shielding relation with the component to be calculated is a specific wave-absorbing material, the component is set as the specific wave-absorbing material medium.
Optionally, obtaining each component RCS according to the emulation coding control table includes obtaining each component RCS according to a physical optical electromagnetic emulation method according to the emulation coding control table.
According to the simulation coding control table, RCS of each component in different states of horizontal polarization and vertical polarization is calculated according to a physical optical electromagnetic simulation method, wherein the angle of incidence of each component is 0-10 degrees, the azimuth angle of each component is 0-10 degrees, and the average value of RCS is calculated to obtain the RCS corresponding to each component.
Optionally, as shown in fig. 3, according to the simulation calculation result, allocating the stealth performance index of each component includes step S11 of calculating the contribution degree of each component to the RCS of the ship according to the stealth performance index of each component RCS and the whole ship; and step S12, distributing stealth performance indexes corresponding to the components according to the RCS contribution degree of each component to the ship. The RCS value of each component and the stealth performance index of the whole preset ship are obtained through simulation calculation, and the RCS contribution degree of each component to the ship is calculated. And according to the contribution degree, the stealth performance index from the whole ship to each component is distributed. The value of the contribution degree of the component to the RCS of the ship represents the influence proportion of the component to the RCS value of the whole ship, and the larger the contribution degree is, the higher the proportion of the component in the ship stealth performance optimization is.
Optionally, calculating the RCS contribution of each component to the ship according to the stealth performance index of each component RCS and the ship as a whole comprises calculating the RCS contribution of each component to the ship according to the RCS of each component and the preset ship as a whole stealth performance index.
Here, the RCS contribution degree of each component to the ship is calculated by the following expression:
wherein alpha is i Represents the RCS contribution degree, delta of the ith component to the ship i RCS representing the ith component obtained by simulation calculation, i being an integer greater than or equal to 1; delta 0 The method is a stealth performance index requirement of the whole ship.
Optionally, allocating the stealth performance index corresponding to the component according to the RCS contribution degree of each component to the ship comprises adjusting the RCS of each component with the contribution degree greater than the threshold value, and calculating the stealth performance index corresponding to the component.
Here, the threshold value of the contribution degree may be 100%, 80%, 70%, or other values, and is typically set to 100%. And adjusting the RCS of each component with the contribution degree larger than the threshold value, and taking the RCS of each component with the contribution degree smaller than or equal to the contribution degree threshold value as a stealth performance index corresponding to the component.
Further, as shown in fig. 4, RCSs of each component having a contribution degree larger than the threshold value are adjusted, and stealth performance indexes corresponding to the components are calculated. Step S21, adjusting each part RCS with the contribution degree larger than a threshold value; step S22, judging whether the sum of the RCS of each part which is adjusted and not adjusted is greater than the stealth performance index requirement of the whole ship; and step S23, under the condition that the sum of the RCS of each part which is not regulated after regulation is greater than the stealth performance index requirement of the whole ship, re-regulating the RCS of each part until the sum of the RCS of each part which is not regulated after the re-regulation is less than or equal to the stealth performance index requirement of the whole ship. The threshold value is set through the actual production rule, the components with higher weight in the overall stealth performance optimization of the ship can be effectively divided, the stealth performance index corresponding to each component is determined through multiple adjustment, and the stealth performance index is used as the condition that each component should meet in the subsequent stealth performance optimization.
Optionally, adjusting the RCS of each component having a contribution greater than the threshold includes reducing the RCS value of each component having a contribution greater than the threshold.
Here, reducing the RCS value of each component having a contribution greater than the threshold may be by 10db, 3db, or other value, typically by 10db, i.e., reducing the RCS of each component having a contribution greater than the threshold to one tenth.
Optionally, under the condition that the sum of the RCS of each part which is not regulated after regulation is greater than the stealth performance index requirement of the whole ship, the RCS of each part is regulated again until the sum of the RCS of each part which is not regulated again after regulation is less than or equal to the stealth performance index requirement of the whole ship. The method comprises the step of readjusting RCS of each part once or a plurality of times under the condition that the sum of RCS of each part which is not subjected to adjustment after adjustment is larger than the stealth performance index requirement of the whole ship, until the sum of RCS of each part which is not subjected to readjustment after readjustment is smaller than or equal to the stealth performance index requirement of the whole ship.
Here, the RCS of each component may be readjusted one or more times, and the RCS value of each component may be reduced one or more times.
Optionally, as shown in fig. 5, the RCS of each component is readjusted once or multiple times until the sum of the RCS of each component after readjustment and each component not readjusted is less than or equal to the stealth performance index requirement of the ship as a whole, and the step S31 of selecting each component with the RCS value being the first range amount; step S32, the RCS value of the selection part is adjusted again; step S33 judges whether the sum of the RCS of the readjusted parts and the RCS of the parts which are not readjusted is smaller than or equal to the stealth performance index requirement of the whole ship.
Here, the selection of the parts having the RCS value of the first range amount may be the selection of the parts having the RCS value of 70%, 50% or other values before all the parts, and the selection of the parts having the RCS value of the first range amount is the selection of the parts having the RCS value of 50% before all the parts.
Optionally, readjusting the pick component RCS value includes decreasing the pick component RCS value.
Here, lowering the select component RCS value may be reduced by 10db, 3db, or other values, typically by 3db, i.e., reducing the select component RCS by one-half.
Optionally, determining whether the sum of the RCSs of the readjusted and unadjusted components is less than or equal to the stealth performance index requirement of the ship as a whole includes repeating the selecting, readjusting, and determining processes if the sum of the RCSs of the readjusted and unadjusted components is greater than the stealth performance index requirement of the ship as a whole. When the sum of the RCS of each component which is readjusted and is not readjusted is smaller than or equal to the stealth performance index requirement of the whole ship, the RCS of each component is used as the stealth performance index corresponding to each component.
Optionally, as shown in fig. 6, adjusting the stealth performance of some or all parts until each part meets its stealth performance index includes step S41 of determining whether each part meets the stealth performance index requirement; step S42, the stealth performance of the parts which do not meet the stealth performance index requirement is adjusted until all the parts meet the stealth performance index corresponding to the parts. And judging whether each part meets the stealth performance index requirement corresponding to the part, selecting the part which does not meet the stealth performance index requirement, and adjusting the stealth performance of the part, so that the stealth performance optimization of each independent part is realized.
Here, when the RCS of each component is less than or equal to the stealth performance index requirement, the component is regarded as meeting the stealth performance index requirement corresponding thereto.
Optionally, performing stealth performance adjustment on the parts not meeting the stealth performance index requirement until all the parts meet the stealth performance index corresponding to the parts, including performing one or more times of shape adjustment on the parts not meeting the stealth performance index requirement until all the parts meet the stealth performance index corresponding to the parts; and/or carrying out one or more times of adjustment on the parts which do not meet the stealth performance index requirement on the stealth materials until all the parts meet the stealth performance index corresponding to the parts.
Here, the part which does not meet the requirement of the stealth performance index is subjected to one or more times of shape adjustment, namely, the setting angle of the part which does not meet the requirement of the stealth performance index is adjusted, so that the included angle of any two outer vertical surfaces is not equal to 90+/-10 degrees, and meanwhile, the included angle of the outer vertical surfaces and the horizontal plane is not equal to 90+/-10 degrees, thereby realizing the optimization of stealth of the shape. The stealth material can be optimized by coating radar wave absorbing materials on the parts which do not meet the stealth performance index requirements and/or installing shielding materials at the opening of the cavity structure. Wherein the wave absorption rate of the wave absorbing material is better than-10 db, and the shielding efficiency is better than-20 db.
Optionally, the method for optimizing stealth performance of the ship further comprises determining a position and a shape of the strong scattering source by a method for determining the strong scattering source after adjusting stealth performance of part or all of the parts until each part meets stealth performance index thereof; coating a wave-absorbing material on the strong scattering source until the RCS of the ship meets the integral stealth performance index of the ship; wherein the strong scattering source is one or more components in a specific location and having a specific shape.
Here, in order to avoid RCS failing to meet the overall stealth performance index of the ship due to the coupling relationship between the components after the stealth performance of the ship is optimized, the radar wave absorbing material is coated on the strong scattering source by the method for determining the strong scattering source until the RCS of the ship meets the overall stealth performance index of the ship.
Further, a method for determining a strong scattering source comprises obtaining a two-dimensional projection coordinate set of a ship from a projection of the three-dimensional coordinate set of the ship; acquiring a plane hot spot data set of a ship under a current angle, and aligning the plane hot spot data set with the two-dimensional projection coordinate set to acquire an aligned data set; obtaining a mapping relation data set according to the mapping relation between the alignment data set and the three-dimensional coordinate set; setting extraction conditions of a strong scattering source, and extracting three-dimensional coordinates of the ship in the mapping relation data set according to the extraction conditions; and determining the spatial position of the ship strong scattering structure according to the extracted ship three-dimensional coordinates.
The mapping relation is established according to the three-dimensional coordinate set through the corresponding relation with the two-position projection coordinate set, the extraction condition is that the hot spot data value is larger than 0 and the data is 10% of the maximum, the ship three-dimensional grid coordinate is subjected to plane projection to obtain the ship two-dimensional grid coordinate, the ship two-dimensional grid coordinate is aligned with the ship plane hot spot data under the current angle, the three-dimensional grid coordinate and plane hot spot data mapping relation is established, and the geometric shape and the spatial position of the ship three-dimensional strong scattering structure are rapidly extracted according to the hot spot data value.
As shown in connection with fig. 3, an embodiment of the present disclosure provides an apparatus for ship stealth performance optimization, including a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via the bus 103. The communication interface 102 may be used for information transfer. The processor 100 may invoke logic instructions in the memory 101 to perform the method for ship stealth performance optimization of the above-described embodiments.
Further, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 101 is a computer readable storage medium that can be used to store a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes the functional applications and data processing by running the program instructions/modules stored in the memory 101, i.e. the method for the stealth performance optimization of the ship in the above-described embodiments is implemented.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides a computer, which comprises the device for optimizing the stealth performance of a ship.
Embodiments of the present disclosure provide a computer readable storage medium storing computer executable instructions configured to perform the above-described method for ship stealth performance optimization.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for ship stealth performance optimization.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (8)
1. A method for ship stealth performance optimization, comprising:
simulating and calculating radar scattering cross sections RCS of all parts of the ship;
distributing stealth performance indexes of all the components according to simulation calculation results;
adjusting stealth performance of part or all of the components until each component meets stealth performance indexes;
according to the simulation calculation result, the stealth performance index of each component is distributed, which comprises the following steps:
calculating the contribution degree of each component to the RCS of the ship according to the stealth performance index of each component RCS and the whole ship;
distributing stealth performance indexes corresponding to the components according to the RCS contribution degree of each component to the ship;
the calculating of the RCS contribution degree of each component to the ship comprises the following steps:
calculation of
Wherein alpha is i Represents the RCS contribution degree, delta of the ith component to the ship i RCS representing the ith component obtained by simulation calculation, i being an integer greater than or equal to 1; delta 0 The method is a stealth performance index requirement of the whole ship.
2. The method of claim 1, wherein the simulating calculates radar cross section RCS for each component of the ship, comprising:
configuring a target characteristic simulation coding control table of each component of the ship;
and obtaining RCS of each component according to the simulation coding control table.
3. The method of claim 1, wherein the assigning stealth performance metrics corresponding to the components based on the RCS contribution of each component to the ship comprises:
RCS of each component with contribution degree larger than the threshold value is adjusted, and stealth performance indexes corresponding to the components are calculated.
4. A method according to claim 3, wherein said adjusting the RCS of each component having a contribution greater than a threshold value, calculating a stealth performance index corresponding to the component, comprises:
adjusting each component RCS with the contribution degree larger than the threshold value;
judging whether the sum of the RCS of each part which is adjusted and not adjusted is greater than the stealth performance index requirement of the whole ship;
and under the condition that the sum of the RCS of each part which is not regulated after regulation is greater than the stealth performance index requirement of the whole ship, the RCS of each part is regulated again until the sum of the RCS of each part which is not regulated again after regulation is less than or equal to the stealth performance index requirement of the whole ship.
5. A method according to any one of claims 1 to 4, wherein adjusting the stealth performance of some or all of the components until each component meets its stealth performance index comprises:
judging whether each part meets the stealth performance index requirement;
and carrying out stealth performance adjustment on the parts which do not meet the stealth performance index requirement until all the parts meet the stealth performance index corresponding to the parts.
6. The method of claim 5, further comprising, after the until all of the components meet the stealth performance index corresponding thereto:
under the condition that all the components meet the requirements of the stealth performance indexes, the RCS of the ship after the simulation calculation and optimization is carried out;
judging whether the ship RCS meets the overall stealth performance index of the ship or not;
under the condition that the overall stealth performance index of the ship is not met, the stealth performance of the strong scattering source is adjusted until the RCS of the ship meets the overall stealth performance index of the ship.
7. The method of claim 6, wherein said adjusting stealth performance of a strong scattering source comprises:
determining the position and shape of the strong scattering source by a method for determining the strong scattering source;
coating a wave-absorbing material on the strong scattering source until the RCS of the ship meets the integral stealth performance index of the ship;
wherein the strong scattering source is one or more components in a specific location and having a specific shape.
8. An apparatus for ship stealth performance optimization comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for ship stealth performance optimization of any one of claims 1 to 6 when running the program instructions.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6255985B1 (en) * | 1999-01-11 | 2001-07-03 | Lockheed Martin Corporation | Method and apparatus for optimizing radar system performance |
| CN106598056A (en) * | 2016-11-23 | 2017-04-26 | 中国人民解放军空军工程大学 | Control surface priority adjusting method for improving stealth performance of fixed wing aircraft |
| CN111025275A (en) * | 2019-11-21 | 2020-04-17 | 南京航空航天大学 | Multi-base radar radiation parameter multi-target joint optimization method based on radio frequency stealth |
| CN111856416A (en) * | 2020-07-10 | 2020-10-30 | 中国人民解放军92942部队 | Missile tracking-based ship radar wave stealth characteristic simulation evaluation method and device |
| CN111932441A (en) * | 2020-07-10 | 2020-11-13 | 中国人民解放军92942部队 | Method and device for determining ship surface strong scattering source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5981510B2 (en) * | 2014-09-30 | 2016-08-31 | 富士重工業株式会社 | Aircraft design method, aircraft design program, and aircraft design apparatus |
-
2021
- 2021-04-08 CN CN202110375594.4A patent/CN113094814B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6255985B1 (en) * | 1999-01-11 | 2001-07-03 | Lockheed Martin Corporation | Method and apparatus for optimizing radar system performance |
| CN106598056A (en) * | 2016-11-23 | 2017-04-26 | 中国人民解放军空军工程大学 | Control surface priority adjusting method for improving stealth performance of fixed wing aircraft |
| CN111025275A (en) * | 2019-11-21 | 2020-04-17 | 南京航空航天大学 | Multi-base radar radiation parameter multi-target joint optimization method based on radio frequency stealth |
| CN111856416A (en) * | 2020-07-10 | 2020-10-30 | 中国人民解放军92942部队 | Missile tracking-based ship radar wave stealth characteristic simulation evaluation method and device |
| CN111932441A (en) * | 2020-07-10 | 2020-11-13 | 中国人民解放军92942部队 | Method and device for determining ship surface strong scattering source |
Non-Patent Citations (11)
| Title |
|---|
| 初步设计阶段桅杆外形的隐身性评估与改进;杜晓佳;崔玫;;中国舰船研究(02);127-132 * |
| 基于CST的发射装置对舰船RCS耦合影响分析;潘树国;王勇;陈旭立;;舰船科学技术(15);177-182 * |
| 无人艇高度雷达波隐身探讨;李铣镔;唐兴基;倪家正;;舰船科学技术(23);109-112 * |
| 某三体舰船外形雷达隐身性设计;姚竞争;韩端锋;郑向阳;;舰船科学技术(07);62-67 * |
| 水面舰船雷达波散射特性分析研究;李敢;祝泓;刘瀛昊;;舰船科学技术(17);131-134 * |
| 舰船外形隐身改进的电磁散射特性影响分析;刘战合;王菁;郭乐;周鹏;姬金祖;;舰船科学技术(13);120-124 * |
| 舰艇外形雷达隐身设计特征面法;杨德庆;常少游;;中国造船(02);113-120 * |
| 英国45型驱逐舰桅杆的隐身性能分析;杜晓佳;杨;洪明;;舰船科学技术(11);165-170 * |
| 邵海桂 ; .雷达隐身技术在水面舰艇中的应用.中国水运(下半月).2017,(04),79-80. * |
| 隐身桅杆与主船体耦合RCS特性研究;程子君;吴启华;;中国舰船研究(03);45-48、54 * |
| 雷达隐身技术在水面舰艇中的应用;邵海桂;;中国水运(下半月)(04);79-80 * |
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