Aircraft module multi-level screening method based on functional prominence and degree of overlap

Abstract

The application discloses a kind of aircraft module multilevel screening methods based on function highlight and degree of overlap, belong to aerospace technology field.The method includes: based on aircraft function requirement design N preset scheme, preset scheme includes at least one module, each module includes at least one functional attribute, each module includes at least one component, and each component includes at least one functional attribute;Based on the function matrix of module constructed based on nonlinear coupling relationship function;According to function matrix, the function highlight degree numerical value of N preset scheme is calculated;Based on the function highlight degree numerical value of N preset scheme with first preset threshold value, obtain first scheme set, and first scheme set includes M preset scheme;Based on function matrix, the function overlap degree numerical value of M preset scheme in first scheme set is calculated;Based on the function overlap degree numerical value of M preset scheme, obtain target scheme;The method reduces aircraft design cost and function redundancy.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aerospace, and particularly relates to a multi-level screening method for aircraft modules based on function prominence and overlap degree. BACKGROUND

[0002] In today's increasingly diverse combat missions of aircraft, modular design as a core means to improve equipment adaptability, the screening efficiency of its division scheme has a decisive influence on multidisciplinary collaborative optimization. In the face of complex and variable combat requirements, the Pareto candidate schemes generated by traditional methods often have problems such as too large parameter dispersion and strong functional coupling, which makes it difficult to form modular design schemes with strong universality and good scalability.

[0003] Existing module division optimization methods are mainly based on intelligent optimization algorithms, but still face many technical bottlenecks. First, the single-task-oriented optimization mode only takes limited evaluation indexes as the objective function, and cannot effectively analyze the functional attribute coupling relationship in the multi-task scenario. Second, the static modeling of component structure constraints cannot adapt to the changes of dynamic task requirements, and each scheme screening needs to rebuild the parameter system, which significantly increases the design iteration cost. In addition, the modular design method based on serial process lacks a multi-dimensional attribute collaborative optimization mechanism, which makes it difficult to achieve effective convergence of cross-disciplinary design parameters.

[0004] In related technologies, in the face of multiple target requirements of attack tasks, the design scheme of the aircraft has the problems of low efficiency, functional redundancy, and high design cost, which cannot provide quantitative evaluation and decision support for the modular design of complex aircraft. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a multi-level screening method for aircraft modules based on function prominence and overlap degree, which reduces the design cost and functional redundancy of the aircraft.

[0006] In a first aspect, the present application provides a multi-level screening method for aircraft modules based on function prominence and overlap degree, which comprises:

[0007] Designing N preset schemes based on aircraft functional requirements, the preset schemes comprising at least one module, each module comprising at least one functional attribute, each module comprising at least one component, and each component comprising at least one functional attribute;

[0008] Based on the nonlinear coupling relationship function, a function matrix of the module is constructed;

[0009] Based on the functional attributes of the components, a function prominence degree index is constructed, which is used to evaluate the functional prominent attributes of the preset schemes;

[0010] According to the function matrix, the function highlight degree values of the N preset schemes are calculated;

[0011] Based on the first preset threshold and the function highlight degree values of the N preset schemes, a first scheme set is obtained, and the first scheme set includes M preset schemes;

[0012] Based on the function attributes of the modules, a function overlap degree index is constructed, and the function overlap degree is used to evaluate the function overlap attributes of the preset schemes;

[0013] Based on the function matrix, the function overlap degree values of the M preset schemes in the first scheme set are calculated;

[0014] Based on the function overlap degree values of the M preset schemes, a target scheme is obtained;

[0015] Wherein, N and M are positive integers greater than 1, and N is greater than M.

[0016] According to an embodiment of the present application, the function matrix of the module is constructed based on the nonlinear coupling relationship function, which includes:

[0017] The nonlinear coupling relationship function of the component is established according to the function attributes of different components;

[0018] Based on the nonlinear coupling relationship function, the function matrix of the module is constructed, and the function matrix includes all components in the module, and the calculation formula is as follows:

[0019]

[0020] Wherein, is the nth function attribute of the jth module, is the element of the ith column and the nth row in the function matrix, e j is the number of components in module j, ω1, ω2, …, ω n is the linear weight of each function attribute, g1, g2, …, g n is the nonlinear coupling relationship function, is the function matrix of the module, and m is the number of components.

[0021] According to an embodiment of the present application, the function highlight degree index is constructed based on the function attributes of the components, which includes:

[0022] The nonlinear coupling relationship function of all components in the module is obtained;

[0023] obtaining a function attribute function of the module based on the nonlinear coupling relationship function and the weight factor of the component;

[0024] constructing a function prominence degree index based on the function attribute function of the module, and a calculation formula of the function prominence degree is as follows:

[0025]

[0026] wherein Q is a number of modules in a preset scheme, is an i-th function attribute of a j-th module, is an average of the i-th function attribute of all preset schemes, P t is a function overlap degree of the preset scheme, and k is a number of function attributes.

[0027] According to an embodiment of the present application, the first scheme set is obtained based on the first preset threshold and the function prominence degree values of the N preset schemes, and the obtaining includes:

[0028] sequentially judging sizes of the function prominence degree values of the N preset schemes and the first preset threshold;

[0029] regarding the preset scheme with the function prominence degree value greater than or equal to the first preset threshold as the first scheme set.

[0030] According to an embodiment of the present application, the function overlap degree index is constructed based on the function attributes of the modules, and the constructing includes:

[0031] constructing the function overlap degree index based on similarities between the function attributes of the modules, and a calculation formula of the function overlap degree is as follows:

[0032]

[0033] wherein ω i is a weight of a function attribute i, is a performance of a module k on the function attribute i, is a performance of a module l on the function attribute i, Q is a number of modules in a preset scheme, and P o is a function overlap degree of the preset scheme.

[0034] According to an embodiment of the present application, the target scheme is obtained based on the function overlap degree values of the M preset schemes, and the obtaining includes:

[0035] judging sizes of the function overlap degree values of the M preset schemes, and regarding the preset scheme with the smallest function overlap degree value as the target scheme.

[0036] According to one embodiment of the present application, the function matrix is calculated by a fuzzy clustering method.

[0037] In a second aspect, the present application provides a device for multi-level screening of aircraft modules based on function prominence and overlap degree, the device comprising:

[0038] a design module for designing N preset schemes based on aircraft function requirements, the preset schemes comprising at least one module, each module comprising at least one function attribute, each module comprising at least one component, and each component comprising at least one function attribute;

[0039] a first construction module for constructing a function matrix of the modules based on a nonlinear coupling relationship function;

[0040] a second construction module for constructing a function prominence degree index based on the function attributes of the components, the function prominence degree being used to evaluate the function prominence attributes of the preset schemes;

[0041] a first generation module for calculating the function prominence degree values of the N preset schemes according to the function matrix;

[0042] a second generation module for obtaining a first scheme set comprising M preset schemes based on a first preset threshold and the function prominence degree values of the N preset schemes;

[0043] a third construction module for constructing a function overlap degree index based on the function attributes of the modules, the function overlap degree being used to evaluate the function overlap attributes of the preset schemes;

[0044] a third generation module for calculating the function overlap degree values of the M preset schemes in the first scheme set based on the function matrix;

[0045] a fourth generation module for obtaining a target scheme based on the function overlap degree values of the M preset schemes;

[0046] wherein N and M are positive integers greater than 1, and N is greater than M.

[0047] In a third aspect, the present application provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for multi-level screening of aircraft modules based on function prominence and overlap degree according to the first aspect.

[0048] In a fourth aspect, the present application provides a non-transitory computer-readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the aircraft module multi-level screening method based on function prominence and overlap degree as described in the first aspect above.

[0049] In a fifth aspect, the present application provides a chip, comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to run a program or instructions to implement the aircraft module multi-level screening method based on function prominence and overlap degree as described in the first aspect.

[0050] In a sixth aspect, the present application provides a computer program product comprising a computer program, which, when executed by a processor, implements the aircraft module multi-level screening method based on function prominence and overlap degree as described in the first aspect above.

[0051] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter.

[0052] The present application provides an aircraft module multi-level screening method based on function prominence and overlap degree, which has the following beneficial effects compared with the prior art:

[0053] (1) The present application constructs a nonlinear coupling relationship function between modules and a function matrix, comprehensively considers the complex interaction of component function attributes, performs first-level screening on the preset scheme based on the function prominence degree index, eliminates schemes with dispersed or weakened function attributes, and retains a first scheme set with significant function advantages. Further, the first scheme set is subjected to second-level fine screening through the function overlap degree index, the function redundancy between modules is reduced, multi-level multi-attribute screening is achieved, the optimal module scheme meeting the two-level screening criteria is obtained, the functional singularity of the module scheme caused by the mutual influence between function attributes is reduced, the scientificity of module division and the scheme decision efficiency are improved, the design cost is reduced, the functional integration, reliability and maintainability of the aircraft are optimized, and quantitative evaluation and decision support are provided for the modular design of complex aircraft.

[0054] (2) The present application establishes a nonlinear coupling relationship function of components and constructs a function matrix based on the function, which can reflect the nonlinear coupling relationship between the components in the module, considers the complex interaction between the function attributes of the components, effectively captures the mutual influence between the components, quantitatively analyzes the function attributes of the modules after the combination of the components of the aircraft, and then compares the function capabilities of the modules in each preset scheme to provide a basis for the next screening, thereby improving the efficiency and accuracy of the scheme modular screening.

[0055] (3)The application obtains the nonlinear coupling relationship functions of all components in the module, constructs the function attribute function of the module based on the functions and the weight factor, constructs the function prominence degree index through the function attribute function, and performs first-level screening through the introduction of the function prominence degree, so that the scheme with high prominence degree in the preset scheme is obtained, the scientificity of module division and the scheme decision efficiency are improved, the design cost is reduced, and the function integration, reliability and maintainability of the aircraft are optimized. BRIEF DESCRIPTION OF DRAWINGS

[0056] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0057] Figure 1 is a flowchart of a multi-level screening method for aircraft modules based on function prominence and overlap degree provided by an embodiment of the present application;

[0058] Figure 2 is a structural schematic diagram of an application aircraft provided by an embodiment of the present application;

[0059] Figure 3 is a schematic diagram of designing 50 preset schemes based on aircraft function requirements provided by an embodiment of the present application;

[0060] Figure 4 is a function attribute radar chart of a component provided by an embodiment of the present application;

[0061] Figure 5 is a function attribute radar chart of a module provided by an embodiment of the present application;

[0062] Figure 6 is a comparative radar chart of function prominence degree provided by an embodiment of the present application;

[0063] Figure 7 is a comparative radar chart of function overlap degree provided by an embodiment of the present application;

[0064] Figure 8 is a module scheme of a first-level preliminary screening of a modularization scheme multi-level screening method provided by an embodiment of the present application;

[0065] Figure 9 is a module scheme of a second-level secondary screening of a modularization scheme multi-level screening method provided by an embodiment of the present application;

[0066] Figure 10 is a structural schematic diagram of a multi-level screening device for aircraft modules based on function prominence and overlap degree provided by an embodiment of the present application;

[0067] Figure 11 is a structural schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0068] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0069] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the objects before and after are in a "or" relationship.

[0070] The function highlighting and overlap degree-based multi-level screening method for aircraft modules, the function highlighting and overlap degree-based multi-level screening device for aircraft modules, the electronic device and the readable storage medium provided by the embodiments of the present application will be described in detail below with reference to the drawings, specific embodiments and application scenarios.

[0071] The function highlighting and overlap degree-based multi-level screening method for aircraft modules can be applied to a terminal, and can be specifically executed by hardware or software in the terminal.

[0072] The terminal includes, but is not limited to, a portable communication device such as a mobile phone or a tablet computer having a touch-sensitive surface (for example, a touchscreen display and / or a touchpad). It should also be understood that in some embodiments, the terminal can not be a portable communication device, but a desktop computer having a touch-sensitive surface (for example, a touchscreen display and / or a touchpad).

[0073] In each of the following embodiments, a terminal including a display and a touch-sensitive surface is described. However, it should be understood that the terminal can include one or more other physical user interface devices such as a physical keyboard, a mouse, and a joystick.

[0074] The multi-level screening method for aircraft modules based on functional prominence and overlap provided in this application embodiment can be executed by an electronic device or a functional module or entity within an electronic device that can implement the multi-level screening method based on functional prominence and overlap. The electronic devices mentioned in this application embodiment include, but are not limited to, mobile phones, tablets, computers, cameras, and wearable devices. The following uses an electronic device as an example to illustrate the multi-level screening method for aircraft modules based on functional prominence and overlap provided in this application embodiment.

[0075] Figure 1 This is a flowchart illustrating the multi-level screening method for aircraft modules based on functional prominence and degree of overlap provided in this application embodiment, as shown below. Figure 1 As shown, the multi-level screening method for aircraft modules based on functional prominence and degree of overlap includes steps 110, 120, 130, 140, 150, 160, 170 and 180.

[0076] Step 110: Design N preset schemes based on the functional requirements of the aircraft. Each preset scheme includes at least one module, each module includes at least one functional attribute, each module includes at least one component, and each component includes at least one functional attribute.

[0077] Figure 2 This is a schematic diagram of the structure of the application aircraft provided in the embodiments of this application, such as... Figure 2 As shown, the application aircraft includes a combat module 10, a detection module 20, a control module 30, a power module 40, and a penetration module 50.

[0078] In one embodiment, when N is 50, 50 preset schemes are designed using a multi-objective optimization method based on the functional requirements of the aircraft. Figure 3 This is a schematic diagram of 50 preset schemes designed based on the functional requirements of an aircraft, as provided in the embodiments of this application. Figure 3 As shown, each preset scheme includes at least one module. Different colors represent different modules, and the same color represents the same module. Each module includes at least one functional attribute, each module includes at least one component, and each component includes at least one functional attribute.

[0079] Step 120: Construct the functional matrix of the module based on the nonlinear coupling relationship function;

[0080] In some embodiments, the function matrix is ​​calculated using a fuzzy clustering method.

[0081] It is easy to understand that the correlation between the components and the functional attributes of the components can be calculated by the fuzzy clustering method to obtain a correlation evaluation table as shown in Table 1 for evaluating the correlation between each component and the functional attributes of the components, wherein the evaluation value of 0 indicates that the component is irrelevant to the functional attribute, the evaluation value of 1 indicates that the correlation between the component and the functional attribute is weak, the evaluation value of 3 indicates that the correlation between the component and the functional attribute is medium, and the evaluation value of 5 indicates that the correlation between the component and the functional attribute is strong.

[0082] Table 1: Correlation evaluation table of functional attributes and components

[0083]

[0084] In this embodiment, by using the fuzzy clustering method to calculate the functional matrix, the modules can be effectively divided according to the similarity of different functional attributes, and by analyzing the functional coupling between the components, the design cost can be effectively reduced, the efficiency and accuracy of the scheme design are improved, and the functional integration and scalability of the modules are optimized.

[0085] Further, based on the correlation evaluation table, a nonlinear coupling relationship function between the components is constructed, and a functional matrix of the module is constructed according to the nonlinear coupling relationship function. Table 2 is a structural schematic diagram of the functional matrix of the module. As shown in Table 2, the module includes 14 components, each component includes at least one functional attribute, and the functional attribute value of each component is the correlation value of each component corresponding to each function in the functional matrix.

[0086] Table 2: Functional matrix of the module

[0087]

[0088]

[0089] Figure 4 is a radar chart of the functional attributes of the components provided by the embodiments of the present application, as shown in Figure 4 The component includes 12 functional attributes.

[0090] Step 130: based on the functional attributes of the components, a functional prominence degree index is constructed, and the functional prominence degree is used to evaluate the functional prominent attribute of the preset scheme;

[0091] It is easy to understand that after obtaining the functional matrix of the module, based on the functional attributes of the components in the module, the functional prominence degree index is constructed by analyzing the variability and uniformity of the functional attributes of the module, and is used to evaluate the functional prominent attribute of the preset scheme.

[0092] Step 140: according to the functional matrix, the functional prominence degree values of N preset schemes are calculated.

[0093] Step 150, based on the first preset threshold and the function prominence degree values of the N preset schemes, obtaining a first scheme set, the first scheme set including M preset schemes;

[0094] Further, the size of the first preset threshold and the function prominence degree values of the N preset schemes is judged, and the scheme with a function prominence degree value greater than the first preset threshold is taken as the first scheme set.

[0095] Step 160, based on the function attributes of the modules, constructing a function overlap degree index, the function overlap degree being used to evaluate the function overlap attributes of the preset schemes;

[0096] It is easy to understand that the function overlap degree can be measured by the difference degree of the function attributes between different modules, and the function overlap degree index can be constructed according to the function attributes of the modules, which is used to evaluate the function overlap attributes of the preset schemes. The greater the difference of a certain function attribute of two modules, the smaller the function overlap degree.

[0097] Step 170, based on the function matrix, calculating the function overlap degree values of the M preset schemes in the first scheme set;

[0098] Step 180, based on the function overlap degree values of the M preset schemes, obtaining a target scheme;

[0099] Finally, the size of the function overlap degree values of the M preset schemes is compared, and the preset scheme with the smallest function overlap degree value is taken as the target scheme. Based on the target scheme, the aircraft is designed to obtain a target aircraft that meets the functional requirements.

[0100] It should be noted that N and M are positive integers greater than 1, and N is greater than M.

[0101] According to the aircraft module multi-level screening method based on function prominence and overlap degree provided in the embodiments of the present application, by constructing a nonlinear coupling relationship function and a function matrix between modules, the complex interactive influence of component function attributes is comprehensively considered; based on the function prominence degree index, the first level screening of the preset scheme is performed, the schemes with scattered or weakened function attributes are eliminated, and the first scheme set with significant function advantages is reserved; further, the second level fine screening of the first scheme set is performed through the function overlap degree index, the function redundancy between modules is reduced, the multi-level multi-attribute screening is realized, the optimal module scheme meeting the two-level screening criteria is obtained, the function singularity of the module scheme caused by the mutual influence between the function attributes is reduced, the scientificity of module division and the scheme decision efficiency are improved, the design cost is reduced, the function integration, reliability and maintainability of the aircraft are optimized, and quantitative evaluation and decision support are provided for the modular design of complex aircraft.

[0102] In some embodiments, the function matrix of the module is constructed based on the nonlinear coupling relationship function, including:

[0103] The nonlinear coupling relationship function of the component is established according to the functional attributes of different components;

[0104] The function matrix of the module is constructed based on the nonlinear coupling relationship function, and the function matrix includes all components in the module, and the calculation formula is as follows:

[0105]

[0106] Wherein, is the nth functional attribute of the jth module, is the element of the nth row of the ith column in the function matrix, e j is the number of components in the module j, ω1, ω2, …, ω n is the linear weight of each functional attribute, g1, g2, …, g n is the nonlinear coupling relationship function, is the function matrix of the module, and m is the number of components.

[0107] It should be noted that the functional attributes of different component combinations will affect each other, and the nonlinear coupling relationship function of the component is established according to the functional attributes of different components.

[0108] In an embodiment, according to the 12 functional attributes in Table 2, their nonlinear coupling relationship functions can be as follows:

[0109] The multi-target damage capability is related to the number of warheads carried by the aircraft and the design characteristics thereof. The sum of squares function can be used to emphasize that with each additional warhead, the damage capability is nonlinearly improved, especially when facing multiple targets, the interaction between the warheads can cause the damage effect to increase exponentially. The nonlinear coupling relationship function of multi-target damage is as follows:

[0110]

[0111] The shrapnel damage effect depends on the number of fragments produced after explosion and the dispersion range thereof. The product function can be used to represent the interdependence between components, that is, only when all components act together can the shrapnel damage effect be maximized, reflecting the characteristics of cooperative operation. The nonlinear coupling relationship function of shrapnel damage effect is as follows:

[0112]

[0113] The effect of kinetic energy damage is proportional to the square of the speed of the aircraft, which represents the effect of increasing speed on the impact force. The square of the speed of each component can be summed to emphasize the contribution of different component speeds, thus more truly reflecting the accumulation of kinetic energy on the damage effect. The nonlinear coupling function of kinetic energy damage is as follows:

[0114]

[0115] The stealth penetration capability is affected by the unique contribution of the stealth technology of each component. The product function is used to represent the stealth technology of each component, which can reduce the probability of being detected. Even if some components have strong stealth technology, it will be partially offset by other components without stealth function. Therefore, the stealth effect gradually increases with the superposition of components, but it is difficult to completely avoid the risk of being detected. The nonlinear coupling function of stealth penetration is as follows:

[0116]

[0117] Engine attitude and orbit control involves the accuracy, response speed, etc. of various sensors and control components. The weighted reciprocal sum of the inverse can be used to represent the influence of the attitude and orbit control accuracy of each component on the whole module. Components with higher accuracy will have a more significant effect on the final result, but if a component has poor accuracy, it will slow down the overall control effect, thus truly reflecting the influence of the weak component in multi-component joint attitude and orbit control. The nonlinear coupling function of engine attitude and orbit control is as follows:

[0118]

[0119] The end-burning time of each component is not the same for boost effect improvement. The weighted logarithmic function is used to make the components with longer boost time play a more significant role in the overall end-burning boost effect, while reflecting the progressive contribution of components with shorter boost time to the overall effect. The nonlinear coupling function of end-burning boost is as follows:

[0120]

[0121] The effect of pulse power system depends on its instantaneous thrust, and the square relationship of thrust emphasizes the importance of instantaneous power in battle, for example, higher instantaneous thrust can help the aircraft quickly change trajectory. The nonlinear coupling function of pulse power is as follows:

[0122]

[0123] Target recognition capability is closely related to the number and quality of sensors. The square root function reflects the superposition effect of sensor capability, indicating that multiple sensors can significantly improve recognition accuracy. The nonlinear coupling function of target recognition is as follows:

[0124]

[0125] The flight control computing complexity increases exponentially with the computing power, and the computing power of each component is combined and squared to highlight the synergistic effect of the overall computing resources. This formula particularly emphasizes the amplification effect of computing resources. The non-linear coupling relationship function of flight control computing is as follows:

[0126]

[0127] Inertial guidance depends on the accuracy of each component, and the accuracy of the composite system is represented by the inverse and formula. Low accuracy of a single component can be partially compensated by other high accuracy components, highlighting the role of component accuracy in improving overall accuracy. The non-linear coupling relationship function of inertial guidance is as follows:

[0128]

[0129] Flight navigation performance depends on the synergistic effect of each navigation component, and the marginal improvement gradually decreases with the increase in the number of components. The logarithmic function of accumulation can be used, and the navigation accuracy of each component is taken to the power of 2, emphasizing the role of high-precision components. This can reflect that when the navigation system accuracy improves to a certain extent, the overall performance improvement tends to be flat, reflecting the integration characteristics of complex navigation systems. The non-linear coupling relationship function of flight navigation is as follows:

[0130]

[0131] The ability of direction change detection depends on the complexity of the detection algorithm, and the logarithmic function is used to illustrate that the marginal benefit decreases with the improvement of detection ability, reflecting the difficulty of detecting complex maneuvering targets. The non-linear coupling relationship function of direction change detection is as follows:

[0132]

[0133] Further, based on the non-linear coupling relationship function and the weight factor, the function matrix of the module is constructed, which includes all components within the module. The function attribute vector of the i-th zero component is set as The calculation formula of the function matrix of the combined j-th module is as follows:

[0134]

[0135] wherein, is the n-th function attribute of the j-th module, is the element of the i-th column and the n-th row in the function matrix, e j is the number of components in module j, ω1, ω2, …, ωn gi, g2, …, gK are the weights for the linear weighting of each functional attribute, n is a nonlinear coupling relationship function, is a functional matrix of the module.

[0136] It should be noted that the weight factor can be averaged or selected flexibly according to the application scenario.

[0137] Figure 5 is a radar chart of the functional attributes of the module provided by the embodiment of the application, as shown in Figure 5 The module includes 12 functional attributes.

[0138] In this embodiment, by establishing a nonlinear coupling relationship function of the components and constructing a functional matrix based on the function, the nonlinear coupling relationship between the components in the module can be reflected, the complex interaction between the functional attributes of the components is considered, the mutual influence between the components is effectively captured, the functional attributes of the module after the combination of the components of the aircraft are quantitatively analyzed, and then the functional capabilities of the module in each preset scheme are compared to provide a basis for the next step of screening, thereby improving the efficiency and accuracy of the modular screening of the scheme.

[0139] In some embodiments, the constructing of the functional prominence index based on the functional attributes of the components comprises:

[0140] obtaining a nonlinear coupling relationship function of all components in the module;

[0141] obtaining a functional attribute function of the module based on the nonlinear coupling relationship function of the components and the weight factor;

[0142] constructing a functional prominence index based on the functional attribute function of the module, and the calculation formula of the functional prominence is as follows:

[0143]

[0144] wherein Q is the number of modules in the preset scheme, gi is the i th functional attribute of the j th module, is the average value of the i th functional attribute of all preset schemes, P t is the functional prominence of the preset scheme, and k is the number of functional attributes.

[0145] In one embodiment, taking two preset schemes as an example, the calculation process of the functional prominence of the preset scheme one and the preset scheme two is as follows:

[0146] The composition of the preset scheme one is shown in Table 3.

[0147] Table 3

[0148]

[0149] The composition of the preset scheme two is shown in Table 4:

[0150] Table 4

[0151]

[0152]

[0153] The average value of all attributes of the preset scheme one and the preset scheme two is shown in Table 5:

[0154] Table 5

[0155]

[0156] Figure 6 The radar chart of the functional prominence degree provided by the embodiment of the present application is shown in FIG. 4. Figure 6 As shown in FIG. 4, the module function radar chart is drawn by calculating the above two preset schemes. The functions of different modules in the module division result of the preset scheme one are more prominent. By comparing the module average functional prominence degree index, the preset scheme with more prominent module functions can be easily selected from multiple preset schemes.

[0157] In the embodiment, by obtaining the nonlinear coupling relationship functions of all components in the module, the functional attribute functions of the module are constructed based on the functions and the weight factors, and then the functional prominence degree index is constructed by the functional attribute functions. The functional prominence degree is introduced for the first level screening, and the scheme with higher prominence degree in the preset scheme is obtained, which improves the scientificity of the module division and the scheme decision efficiency, reduces the design cost, and optimizes the functional integration, reliability and maintainability of the aircraft.

[0158] In some embodiments, the first scheme set is obtained based on the first preset threshold and the functional prominence degree values of N preset schemes, including:

[0159] The functional prominence degree values of N preset schemes are sequentially compared with the first preset threshold;

[0160] The preset scheme with the functional prominence degree value greater than or equal to the first preset threshold is taken as the first scheme set.

[0161] In the embodiment, by sequentially comparing the functional prominence degree values of the preset schemes with the first preset threshold, the preset scheme with the functional prominence degree value greater than or equal to the first preset threshold is taken as the first scheme set, which can effectively screen the preset scheme with higher functional prominence degree, balance the functional contribution between different schemes, and improve the accuracy and efficiency of scheme screening.

[0162] In some embodiments, the function overlap degree indicator is constructed based on the functional attributes of the modules, including:

[0163] The function overlap degree indicator is constructed based on the similarity between the functional attributes of the modules, and the calculation formula of the function overlap degree is as follows:

[0164]

[0165] wherein ω i is the weight of the functional attribute i, is the performance of module k on the functional attribute i, is the performance of module l on the functional attribute i, Q is the number of modules in the preset scheme, and P o is the function overlap degree of the preset scheme.

[0166] It is easy to understand that the function overlap degree can be calculated by the Euclidean distance or similarity between the functional attributes of the modules, and the definition of the function overlap degree is as follows:

[0167]

[0168] wherein, is the performance of module k on the functional attribute i, is the performance of module l on the functional attribute i, Q is the number of modules in the preset scheme, and P o is the function overlap degree of the preset scheme.

[0169] Further, in order to preferentially reduce the overlap on some attributes, for example, attribute A is more important than attributes B and C, a weighting factor can be introduced, and the calculation formula of the function overlap degree is as follows:

[0170]

[0171] wherein ω i is the weight of the functional attribute i, is the performance of module k on the functional attribute i, is the performance of module l on the functional attribute i, Q is the number of modules in the preset scheme, and P o is the function overlap degree of the preset scheme.

[0172] In an embodiment, taking two preset schemes as an example, the calculation process of the function overlap degree of the preset scheme one and the preset scheme two is as follows:

[0173] The composition of the preset scheme one is shown in Table 6:

[0174]

[0175] The composition of the second preset scheme is shown in Table 7:

[0176]

[0177] Figure 7 is a comparative radar chart of the functional overlap degree provided by the embodiment of the present application, as shown in the above calculation and drawing of the functional radar chart of the two preset schemes, the functional overlap degree of different modules in the module division result of the first preset scheme is smaller. Figure 7

[0178] In this embodiment, by constructing the functional overlap degree index based on the similarity between the module function attributes, the performance overlap of the modules in different function attributes can be quantified. Then further performing the second level screening on the comprehensive module overlap degree of the first scheme set after the preliminary screening, which is helpful to screen the optimal module scheme that meets various tasks and requirements, improves the efficiency of the aircraft modular design, and reduces the design cost.

[0179] In some embodiments, the functional overlap degree values of the M preset schemes are used to obtain a target scheme, including:

[0180] The functional overlap degree values of the M preset schemes are compared, and the preset scheme with the smallest functional overlap degree value is taken as the target scheme.

[0181] In an embodiment, when N is equal to 50 and M is equal to 10, first, the 50 Pareto candidate module division schemes obtained by the multi-objective simulated annealing algorithm are evaluated and screened using the module average function prominence degree, and 10 candidate schemes with the most prominent function attributes are screened out. Then, the 10 candidate schemes are evaluated and screened again using the comprehensive functional overlap degree, and a target scheme with different prominent functions of different modules is screened out.

[0182] Specifically, the module average function prominence degree of the 50 Pareto candidate module division schemes is calculated, and the specific values are shown in Table 8. The first 10 schemes of the module average function prominence degree are shown in Table 9.

[0183] Table 8: Module average function prominence degree of candidate schemes

[0184]

[0185]

[0186] Table 9: Ten candidate schemes with the largest module average function prominence degree

[0187]

[0188] ​Figure 8 is a module scheme of the first level preliminary screening of the multi-level screening method of the modular scheme provided in the embodiment of the application; as shown in Figure 8 , ten alternative module division schemes with the largest average functional prominence degree are selected.

[0189] Further, the comprehensive functional overlap degree of the 10 selected alternative module division schemes is calculated, and the specific values are shown in Table 10.

[0190] Table 10 Comprehensive functional overlap degree of 10 alternative module division schemes

[0191]

[0192] Figure 9 is a module scheme of the second level secondary screening of the multi-level screening method of the modular scheme provided in the embodiment of the application, as shown in Figure 9 , the scheme with the lowest comprehensive functional overlap degree in the division scheme is taken as the target scheme. The target scheme is specifically represented as the module division result shown in Table 11.

[0193] Table 11 Detailed results of the target scheme

[0194]

[0195] In this embodiment, by judging the size of the functional overlap degree value of the M preset schemes, the preset scheme with the smallest functional overlap degree value is selected as the target scheme, which can effectively reduce the redundancy caused by functional overlap, improve the accuracy of scheme screening, help to quickly find the optimal target scheme in multiple preset schemes, and improve the scientificity of module division and the efficiency of scheme decision.

[0196] The multi-level screening method of the aircraft module based on the functional prominence and overlap degree provided in the embodiment of the application can be a multi-level screening device of the aircraft module based on the functional prominence and overlap degree. In the embodiment of the application, the multi-level screening device of the aircraft module based on the functional prominence and overlap degree is taken as an example to illustrate the multi-level screening device of the aircraft module based on the functional prominence and overlap degree provided in the embodiment of the application.

[0197] The embodiment of the application also provides a multi-level screening device of an aircraft module based on functional prominence and overlap degree, as shown in Figure 10 , the multi-level screening device of the aircraft module based on the functional prominence and overlap degree includes an acquisition module 1010, a first construction module 1020, a second construction module 1030, a first generation module 1040, a second generation module 1050, a third construction module 1060, a third generation module 1070, and a fourth generation module 1080.

[0198] The design module 1010 is configured to design N preset schemes based on aircraft function requirements, the preset schemes including at least one module, each module including at least one function attribute, each module including at least one component, and each component including at least one function attribute;

[0199] The first construction module 1020 is configured to construct a function matrix of the module based on a nonlinear coupling relationship function;

[0200] The second construction module 1030 is configured to construct a function prominence degree index based on the function attributes of the components, the function prominence degree being used to evaluate function prominence attributes of the preset schemes;

[0201] The first generation module 1040 is configured to calculate the function prominence degree values of the N preset schemes according to the function matrix;

[0202] The second generation module 1050 is configured to obtain a first scheme set including M preset schemes based on a first preset threshold and the function prominence degree values of the N preset schemes;

[0203] The third construction module 1060 is configured to construct a function overlap degree index based on the function attributes of the modules, the function overlap degree being used to evaluate function overlap attributes of the preset schemes;

[0204] The third generation module 1070 is configured to calculate the function overlap degree values of the M preset schemes in the first scheme set based on the function matrix;

[0205] The fourth generation module 1080 is configured to obtain a target scheme based on the function overlap degree values of the M preset schemes;

[0206] Wherein, N and M are positive integers greater than 1, and N is greater than M.

[0207] According to the aircraft module multi-level screening device based on function prominence and overlap degree provided in the embodiment of the application, the complex interaction of component function attributes is comprehensively considered by constructing a nonlinear coupling relationship function and a function matrix between modules; the first level screening is performed on the preset scheme based on the function prominence degree index, the scheme with scattered or weakened function attributes is eliminated, and the first scheme set with significant function advantage is reserved; the second level fine screening is further performed on the first scheme set through the function overlap degree index, the function redundancy between modules is reduced, the multi-level multi-attribute screening is realized, the optimal module scheme meeting the two-level screening criteria is obtained, the function singularity of the module scheme caused by the mutual influence between function attributes is reduced, the scientificity of module division and the scheme decision efficiency are improved, the design cost is reduced, the function integration, reliability and maintainability of the aircraft are optimized, and quantitative evaluation and decision support are provided for the modular design of the complex aircraft.

[0208] The aircraft module multi-level screening device based on function prominence and overlap degree provided in the embodiment of the application can realize Figures 1 to 9 The aircraft module multi-level screening device based on function prominence and overlap degree provided in the embodiment of the application can realize

[0209] In some embodiments, as Figure 11 indicated, the embodiment of the application further provides an electronic device 1100, which includes a processor 1101, a memory 1102, and a computer program stored in the memory 1102 and executable on the processor 1101. The program is executed by the processor 1101 to realize each process of the above-mentioned aircraft module multi-level screening method based on function prominence and overlap degree, and can achieve the same technical effects. To avoid repetition, details are not repeated here.

[0210] It should be noted that the electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.

[0211] The embodiment of the application further provides a non-transitory computer readable storage medium, which stores a computer program. The computer program is executed by a processor to realize each process of the above-mentioned aircraft module multi-level screening method based on function prominence and overlap degree, and can achieve the same technical effects. To avoid repetition, details are not repeated here.

[0212] The processor is the processor in the electronic device in the above-mentioned embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0213] The embodiment of the present application further provides a computer program product comprising a computer program which, when executed by a processor, implements the aircraft module multi-level screening method based on function highlighting and overlapping degree.

[0214] The processor is a processor in the electronic device in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0215] The embodiment of the present application further provides a chip, which comprises a processor and a communication interface. The communication interface is coupled with the processor. The processor is used to run programs or instructions, and realizes each process of the aircraft module multi-level screening method based on function highlighting and overlapping degree. The same technical effects can be achieved, and thus, details are not described herein again.

[0216] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0217] It should be noted that, in this document, the term "comprising" or "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to the order of performing the functions as shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in a reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to some examples can be combined in other examples.

[0218] Those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by means of software and necessary general hardware platform, of course, it can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, or network equipment, etc.) execute the aircraft module multi-level screening method based on function highlighting and overlap degree of each embodiment of the present application.

[0219] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0220] In the description of the present application, "a plurality of" means two or more.

[0221] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

[0222] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0223] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A multi-level screening method for aircraft modules based on functional prominence and degree of overlap, characterized in that, The method includes: Based on the functional requirements of the aircraft, N preset schemes are designed. Each preset scheme includes at least one module, each module includes at least one functional attribute, each module includes at least one component, and each component includes at least one functional attribute. The functional matrix of the module is constructed based on the nonlinear coupling relationship function; Based on the functional attributes of the components, a functional prominence index is constructed. This functional prominence index is used to evaluate the functional prominence attributes of the preset scheme, including: Obtain the nonlinear coupling relationship function of all components within the module; Based on the nonlinear coupling relationship function and weighting factor of the components, the functional attribute function of the module is obtained; Based on the functional attribute functions of the module, a functional prominence index is constructed, and the calculation formula for the functional prominence is as follows: Where Q represents the number of modules in the preset scheme. For the i-th functional attribute of the j-th module, Let P be the mean of the i-th functional attribute of all preset schemes. t The degree of functional emphasis in the preset scheme is represented by k, where k is the number of functional attributes. Based on the functional matrix, calculate the functional prominence values ​​of the N preset schemes, including: Based on the similarity between the functional attributes of the modules, a functional overlap index is constructed, and the calculation formula for the functional overlap is as follows: Where, ω i The weight of functional attribute i, This represents the behavior of module k on functional attribute i. Let Q represent the performance of module l in terms of functional attribute i, and let P be the number of modules in the preset scheme. o The degree of functional overlap in the preset scheme; Based on a first preset threshold and the functional prominence values ​​of N preset schemes, a first scheme set is obtained, which includes M preset schemes. Based on the functional attributes of the module, a functional overlap index is constructed, which is used to evaluate the functional overlap attributes of the preset scheme. Based on the functional matrix, calculate the functional overlap value of the M preset schemes in the first scheme set; Based on the functional overlap values ​​of the M preset schemes, the target scheme is obtained; Where N and M are positive integers greater than 1, and N is greater than M.

2. The multi-level screening method for aircraft modules based on functional prominence and degree of overlap as described in claim 1, characterized in that, The construction of the module's functional matrix based on the nonlinear coupling relationship function includes: Establish a nonlinear coupling relationship function for the components based on the functional attributes of the different components; Based on the aforementioned nonlinear coupling relationship function, a function matrix for the module is constructed. This function matrix includes all components within the module, and the calculation formula is shown below: in, For the nth functional attribute of the j-th module, e is the element in the i-th column and n-th row of the function matrix. j Let ω1, ω2, ..., ω be the number of components in module j. n The linearly weighted weights for each functional attribute, g1, g2, ..., g n It is a nonlinear coupling relationship function. Let m be the functional matrix of the module, and m be the number of components.

3. The multi-level screening method for aircraft modules based on functional prominence and degree of overlap as described in claim 1, characterized in that, The first set of schemes is obtained based on the first preset threshold and the functional prominence values ​​of N preset schemes, including: The functional prominence values ​​of the N preset schemes are sequentially compared with the first preset threshold. The preset schemes whose functional prominence values ​​are greater than or equal to the first preset threshold are taken as the first scheme set.

4. The multi-level screening method for aircraft modules based on functional prominence and degree of overlap as described in claim 1, characterized in that, The process of obtaining the target solution based on the functional overlap values ​​of the M preset solutions includes: Determine the magnitude of the functional overlap value among the M preset schemes, and select the preset scheme with the smallest functional overlap value as the target scheme.

5. The multi-level screening method for aircraft modules based on functional prominence and degree of overlap as described in claim 1, characterized in that, The function matrix was calculated using a fuzzy clustering method.

6. A multi-level screening device for aircraft modules based on functional prominence and degree of overlap, implemented using the multi-level screening method for aircraft modules based on functional prominence and degree of overlap as described in any one of claims 1 to 5, characterized in that, The device includes: The design module is used to design N preset schemes based on the functional requirements of the aircraft. The preset schemes include at least one module, each module includes at least one functional attribute, each module includes at least one component, and each component includes at least one functional attribute. The first building module is used to construct the functional matrix of the module based on the nonlinear coupling relationship function; The second construction module is used to construct a functional prominence index based on the functional attributes of the component, wherein the functional prominence is used to evaluate the functional prominence attributes of the preset scheme. The first generation module is used to calculate the functional prominence values ​​of the N preset schemes based on the functional matrix. The second generation module is used to obtain a first scheme set based on a first preset threshold and the functional prominence values ​​of N preset schemes, wherein the first scheme set includes M preset schemes. The third construction module is used to construct a functional overlap index based on the functional attributes of the module, and the functional overlap index is used to evaluate the functional overlap attributes of the preset scheme. The third generation module is used to calculate the functional overlap value of the M preset schemes in the first scheme set based on the functional matrix. The fourth generation module is used to obtain the target solution based on the functional overlap values ​​of the M preset solutions; Where N and M are positive integers greater than 1, and N is greater than M.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the multi-level screening method for aircraft modules based on functional prominence and degree of overlap as described in any one of claims 1 to 5.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the multi-level screening method for aircraft modules based on functional prominence and degree of overlap as described in any one of claims 1 to 5.

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