Method and system for zoning part

Abstract

The invention discloses a method for carrying out regional division on a part. The method comprises the following steps: obtaining an initial design of the part; performing safety and reliability analysis on the initial design of the part to obtain a first analysis result; establishing a damage principle of the part based on the first analysis result, wherein the damage principle indicates a principle of occurrence of damage in the part; performing strength analysis on each area of the part based on the damage principle to obtain a second analysis result; and performing region division on the part based on the second analysis result to divide each region of the part into one of a key region, an important region and a general region, the key region being a region related to the safety of the part, the important region being a region related to the reliability of the part, and the general region being a region related to the reliability of the part. The general area refers to the area except the key area and the important area in the part. A system and computer medium for regionalizing a part are also disclosed.

Description

Technical Field

[0001] The invention relates to the field of mechanical structure strength design, and in particular to a method and system for dividing parts into regions. Background Art

[0002] Parts area division is a must in the design and development stage of large equipment. Especially for aircraft engines with high safety requirements, the stress of the parts area is closely related to the flight safety of the aircraft. For commercial aircraft engines, the maintenance cost is closely related to the maintainability of the parts. At the same time, the maintainability of the parts is related to the definition of the damage limit of the parts.

[0003] China's Civil Airworthiness Regulation CCAR33.70 clearly states: "Output of stress analysis results: After the stress analysis, the key positions of the life-limited parts should be identified, including stress concentration positions and high-temperature positions that are prone to low-cycle fatigue failure." This clause requires that after the stress and life analysis is completed, all key positions of the life-limited parts should be identified, and the stress and life results of these positions should be reported, and these results should be clearly stated in the certification report.

[0004] However, current aircraft engine designs generally only give the stress or life of the weakest part of the component strength, and only require the stress or life of the weakest part (for example, the life-limited area) to meet the design requirements, while no longer calculating the stress or life of other parts / areas. This part design and area division method obviously cannot meet the design requirements of the engine in airworthiness regulations.

[0005] In view of the deficiencies in the prior art, it is desirable to provide an improved method and system for dividing parts into regions. Summary of the invention

[0006] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0007] The present invention provides a method for dividing a part into regions, comprising: obtaining an initial design of the part; performing safety and reliability analysis on the initial design of the part to obtain a first analysis result; establishing a damage principle of the part based on the first analysis result, the damage principle indicating a principle of damage occurring in the part; performing strength analysis on each region of the part based on the damage principle to obtain a second analysis result; and dividing the part into regions based on the second analysis result to divide each region of the part into one of a critical region, an important region, and a general region, wherein the critical region refers to a region related to the safety of the part, the important region refers to a region related to the reliability of the part, and the general region refers to a region of the part other than the critical region and the important region.

[0008] In some embodiments, establishing a damage principle for a part based on a first analysis result further includes: establishing a tolerance design state for the part based on the first analysis result, the tolerance design state indicating the design criteria followed by the part and the corresponding part limit range; and determining the damage principle based on the tolerance design state.

[0009] In some embodiments, the method further comprises: after the strength analysis, performing a structure and performance analysis on the part to obtain a third analysis result, wherein performing region division on the part is based on the second analysis result and the third analysis result.

[0010] In some embodiments, the damage includes one or more of the following: cracks, chemical corrosion, electrochemical corrosion, material discoloration, scratches, nicks, dents, chips, metal protrusions, burrs, and wear.

[0011] In some embodiments, the method further includes: determining damage limits for each divided region based on a damage principle, where the damage limits indicate damage that is allowed to occur in each region of the part.

[0012] In some embodiments, the method further includes: determining whether the damage limitation meets the desired design requirements.

[0013] In some embodiments, the method further includes updating a region partitioning of the part and determining the damage limit based on the updated region partitioning if the damage limit does not meet the desired design requirements.

[0014] In some embodiments, the method further comprises: updating an initial design of the part before updating the region division of the part.

[0015] The present invention also provides a system for dividing parts into regions, comprising: a design acquisition module, which is configured to obtain an initial design of the part; a first analysis module, which is configured to perform safety and reliability analysis on the initial design of the part to obtain a first analysis result; a damage principle module, which is configured to establish a damage principle for the part based on the first analysis result, wherein the damage principle indicates a principle for damage to occur in the part; a second analysis module, which is configured to perform strength analysis on each region of the part based on the damage principle to obtain a second analysis result; and a region division module, which is configured to divide the part into regions based on the second analysis result to divide each region of the part into one of a critical region, an important region, and a general region, wherein a critical region refers to a region related to the safety of the part, an important region refers to a region related to the reliability of the part, and a general region refers to a region of the part other than the critical region and the important region.

[0016] In some embodiments, the damage principle module is further configured to: establish a tolerance design state of the part based on the first analysis result, the tolerance design state indicating the design criteria followed by the part and the corresponding part limit range; and determine the damage principle according to the tolerance design state.

[0017] In some embodiments, the system further comprises: a third analysis module configured to: after the strength analysis, perform structure and performance analysis on the part to obtain a third analysis result, wherein the region division of the part is based on the second analysis result and the third analysis result.

[0018] In some embodiments, the damage includes one or more of the following: cracks, chemical corrosion, electrochemical corrosion, material discoloration, scratches, nicks, dents, chips, metal protrusions, burrs, and wear.

[0019] In some embodiments, the system further includes a damage limitation module, which is configured to: determine damage limits for each divided region based on a damage principle, where the damage limit indicates damage that is allowed to occur in each region of the part.

[0020] In some embodiments, the damage limitation module is further configured to: determine whether the damage limitation meets the expected design requirements.

[0021] In some embodiments, the system further includes an update module configured to: if the damage limit does not meet the desired design requirements, update the region partitioning of the part and determine the damage limit based on the updated region partitioning.

[0022] In some embodiments, the update module is further configured to: update the initial design of the part before updating the region division of the part.

[0023] The present invention also provides a computer-readable storage medium storing a computer program for dividing a part into regions. The computer program can be executed by a processor to perform the aforementioned method for dividing a part into regions.

[0024] The technical solution of the present invention defines the area division method and damage limitation principle of parts based on strength, ensures the airworthiness safety of the engine, effectively solves the airworthiness compliance problem in the design process, and also provides a basis for damage limitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The features, nature and advantages of the present invention will become more apparent when the detailed description set forth below is understood in conjunction with the accompanying drawings. In the accompanying drawings, the same reference numerals are always used for corresponding identification. It should be noted that the drawings described are only schematic and non-limiting. In the drawings, the sizes of some components may be exaggerated and are not drawn to scale for illustrative purposes.

[0026] Figure 1 A schematic diagram of a system for dividing parts into regions according to the present invention is shown.

[0027] Figure 2 A flow chart of an exemplary method for dividing a part into regions according to the present invention is shown.

[0028] Figure 3 A flow chart showing another exemplary method for dividing a part into regions according to the present invention is shown.

[0029] Figure 4 A schematic diagram of the design of a typical turbine disk is shown.

[0030] Figure 5A-5B A schematic diagram of the regional division results of a typical turbine disk is shown.

[0031] Figure 6 A schematic diagram of the region division results of a typical leaf is shown.

[0032] Figure 7 A system for dividing a part into regions according to the present invention is shown.

[0033] Figure 8 A block diagram of an apparatus including a system for partitioning a part into zones is shown. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to provide a thorough understanding of the described exemplary embodiments. However, it is obvious to those skilled in the art that the described embodiments can be practiced without some or all of these specific details. In other exemplary embodiments, well-known structures are not described in detail to avoid unnecessarily obscuring the concepts of the present disclosure. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. At the same time, in the absence of conflict, the various aspects described in the embodiments can be combined arbitrarily.

[0035] As mentioned above, the parts and regions division method in the prior art only makes the stress or life of the weakest part of the part meet the design requirements, without considering the stress or life of other parts / regions.

[0036] The present invention provides a process and method for dividing the parts area, so as to improve the design process. It should be noted that although the various aspects of the present invention are explained in conjunction with the parts of the aircraft engine in most of the descriptions, the present invention is not limited thereto. The technical solution proposed by the present invention can be applied to the design of other parts in the aviation field and the design of parts in other fields.

[0037] Figure 1 A schematic diagram 100 of a system for dividing a part into regions according to the present invention is shown.

[0038] like Figure 1 As shown, when dividing a part into regions, the design of the part can be input first.

[0039] For example, an initial design may be performed on a part first to obtain design data of the part (such as a design model, structure, etc. of the part).

[0040] The inputted part design can then be subjected to safety and reliability analysis. In some embodiments, the elements that affect the safety and reliability of the part (such as the position that affects the safety and / or reliability of the part) can be identified through the analysis results.

[0041] After the safety and reliability analysis is performed, the tolerance design state of the part can be established accordingly. Specifically, the design criteria followed by the part and the corresponding part limit range can be established based on the above safety and reliability analysis results.

[0042] In some embodiments, the parts may comply with a safe life design criterion, which requires that defects / damages that affect the life of the parts, such as cracks, are not allowed to occur during the life cycle of the parts.

[0043] In some embodiments, a part may follow a tolerance design criterion. This criterion allows certain characteristic defects, such as cracks, to appear during the life cycle of the part, but the appearance of the characteristic defect will not rapidly expand during the life cycle of the part to affect the safety or reliability of the part. In other words, the defect is safe during the life cycle of the part.

[0044] Based on the above tolerance design state, the damage principle of the part in this state can be determined. The damage principle indicates which damage is allowed to occur on which type of parts and which damage is not allowed to occur on which type of parts.

[0045] Subsequently, according to the damage principle of the parts, the load conditions and strength analysis can be performed on the parts to calculate the failure state (such as whether it fails, the probability of failure, etc.) and life (such as the predicted value of safe cycle life) of each area of ​​the parts under a certain damage mode.

[0046] In some implementations, in addition to strength analysis, engineering structure and performance analysis can also be performed on parts. For example, functional analysis can be performed on parts with structural fit, such as the interference fit performance and damage mode of the disk and shaft, the functional analysis and damage mode of the clearance fit of the casing stop, etc.

[0047] After the above analysis, the part can be divided into regions to divide each region of the part into one of a critical region, an important region, and a general region.

[0048] After the area division is completed, the damage limit of each area can be determined according to the damage principle under the tolerance state. Damage limit limits the damage allowed in each area of ​​the part. On the one hand, damage limit can limit the type of damage, including but not limited to cracks, chemical corrosion, electrochemical corrosion, material discoloration, scratches, notches, dents, blocks, metal high points / protrusions, burrs, wear, etc. On the other hand, damage limit can also limit the degree of damage. For example, for crack-type damage, damage limit can limit the area where the crack appears and the depth of the crack (such as the maximum depth).

[0049] It can then be determined whether the damage limitation meets the desired design requirements.

[0050] If the damage limitation meets the desired design requirements, the region partitioning process for the part is completed.

[0051] If the damage limit does not meet the expected design requirements, it means that the region division of the part may be unreasonable. In such a case, you can go back to re-divide the part so that the damage limit of the re-divided part meets the requirements. In some implementations, the design of the part can also be changed (not shown in the figure) to divide the part into regions based on the changed design.

[0052] By dividing the parts into regions and determining the damage limits in the above manner, the stress conditions of each key area of ​​the parts can be effectively identified, providing a basis for determining the life of key components. At the same time, by defining reasonable damage limits, the use value of the parts can be maximized, ensuring the safety of the parts and the economy of the maintenance process.

[0053] Figure 2 A flow chart of an exemplary method 200 for dividing a part into regions according to the present invention is shown.

[0054] like Figure 2 As shown, method 200 begins at step 205. At step 205, an initial design of a part is obtained.

[0055] As mentioned above, by initially designing the part, the design data of the part (such as the design structure, design model, etc. of the part) can be obtained.

[0056] The initial design of the part identifies the various parts of the part and / or the location and size of each part. Figure 4 , showing a schematic design of a typical turbine disk. Figure 4 The various parts of the turbine disc are identified as follows:

[0057] 1: disk inner diameter;

[0058] 2: Transition area of ​​the web (rear);

[0059] 3: Front flange hole;

[0060] 4: fan-shaped holes on the front flange (if any);

[0061] 5,5',5”: fir-tree mortise and tenon (groove root, lug root, pressure surface);

[0062] 6: Fillet of front flange arm;

[0063] 7: Forearm-belly fillet;

[0064] 8: posterior wall-stomach fillet;

[0065] 9: Transition area of ​​the web (front);

[0066] 10: Forearm - rounded edges.

[0067] In step 210 , a safety and reliability analysis is performed on the initial design of the part to obtain a first analysis result.

[0068] In a specific implementation, the initial design of the part can be analyzed for safety and reliability using conventional analysis tools (e.g., analysis software). The analysis results obtained through this analysis can identify factors that affect the safety and reliability of the part. For example, certain parts and / or certain areas of the part may be critical to the safety and / or reliability of the part. By identifying such factors, a basis can be provided for subsequent area division and damage limitation.

[0069] In step 215 , a damage principle of the part is established based on the first analysis result, the damage principle indicating a principle of damage occurring in the part.

[0070] In some embodiments, establishing a damage principle for a part based on a first analysis result further includes: establishing a tolerance design state for the part based on the first analysis result, the tolerance design state indicating the design criteria followed by the part and the corresponding part limit range; and determining the damage principle based on the tolerance design state.

[0071] Generally speaking, parts can follow the safe life design criteria or the tolerance design criteria. For parts that follow the safe life design criteria, defects that affect the life of the parts are not allowed to occur during the life cycle of the parts. For parts that comply with the tolerance design criteria, defects are allowed to occur during the life cycle of the parts, but the defects will not affect the safety or reliability of the parts during the life cycle of the parts, that is, the defects are safe during the life cycle of the parts.

[0072] In order to ensure the safety and reliability of parts that follow different design criteria during their life cycle, it is necessary to impose corresponding restrictions on the parts. For example, for parts that are not allowed to corrode during their life cycle, the corrosion depth can be limited to 0, and there are corresponding restrictions on the material and thickness of the parts (for example, materials that are prone to corrosion are not allowed, and the thickness of the parts needs to reach a specific threshold, etc.). For parts that are allowed to corrode during their life cycle, the corrosion depth can be limited to a range greater than 0, and the restrictions on the material and thickness of the parts may be relatively loose. In this article, various restrictions on parts (restrictions on materials, sizes, damage, etc.) can be collectively referred to as part restriction ranges. In specific implementations, the part restriction range can be determined based on the results of safety and reliability analysis, the environment in which the parts are used (for example, temperature, height, pressure, etc.), the design criteria followed by the parts, the expected life cycle of the parts, and other factors.

[0073] The damage principle can then be determined based on the tolerance design state of the part.

[0074] Specifically, the damage principle can indicate which damages are allowed to occur on which type of parts and which damages are not allowed to occur on which type of parts.

[0075] In various embodiments of the present invention, the damage may include, but is not limited to, one or more of the following: cracks, chemical corrosion, electrochemical corrosion, material discoloration, scratches, notches, dents, chipping, metal protrusions, burrs, and wear.

[0076] For example, turbine disks follow the safety life design criteria, and cracks are not allowed to appear during the life cycle of the turbine disk. However, for tolerance design parts such as blade tenons and casing flanges, damage such as corrosion, electrolytic erosion, scratches, notches, and dents are allowed.

[0077] By determining the damage principle, information such as the damage that is not allowed to occur in the part, the damage that is allowed to occur, and the degree of damage that is allowed to occur (for example, the allowable crack depth, the allowable wear degree) can be indicated.

[0078] In step 220, strength analysis is performed on each region of the component based on the damage principle to obtain a second analysis result.

[0079] After determining the damage principle, the load condition and strength analysis can be performed on each region of the part (for example, by establishing a strength analysis model). The results of the above analysis (i.e., the second analysis result) identify the failure state and expected life of each region / part under certain damage.

[0080] As an example, Table 1 below shows Figure 4 2 shows exemplary analysis results obtained by performing strength analysis on various parts of the turbine disk shown in FIG.

[0081] Table 1

[0082]

[0083] In some implementations, in addition to performing strength analysis on a part, a structure and performance analysis may also be performed on the part to obtain a third analysis result (not shown in the figure).

[0084] For example, functional analysis can also be performed on parts with structural fit, such as the interference fit performance and damage mode of the disk and shaft; the functional analysis and damage mode of the clearance fit of the casing stop, etc. Performance analysis refers to the analysis that affects the performance of the parts. For example, for an engine, performance analysis refers to the analysis that affects the aerodynamics or secondary flow of the engine, such as the blade profile, intake edge, exhaust edge, tip area and damage analysis of the blade.

[0085] In step 225, the part is divided into regions based on the second analysis result to divide each region of the part into one of a critical region, an important region, and a general region, wherein the critical region refers to a region related to the safety of the part, the important region refers to a region related to the reliability of the part, and the general region refers to a region of the part other than the critical region and the important region.

[0086] In the case where the structure and performance analysis of the part is performed, the region division of the part may be based on the second analysis result and the third analysis result obtained through the structure and performance analysis.

[0087] For critical areas, damage in this area will affect the safety of the part.

[0088] For important areas, damage in this area will cause the performance of the part to deteriorate or affect the complete function of the part (that is, affect the reliability of the part). Damage is allowed in important areas, but the scope of the damage's impact on the part should be controlled.

[0089] Compared with the critical area and the important area, damage is allowed in the general area, and the restriction on damage is relatively loose. In other words, the damage in the general area has less impact on the safety and reliability of the parts than in other areas.

[0090] In a specific implementation, different methods may be used to define the degree of influence of damage occurring in an area on the safety and / or reliability of a part. For example, for a part area where a crack with a maximum depth of D is allowed to appear, a crack less than the depth D in the area may have no influence on the safety of the part, but may affect the reliability of the part, and the deeper the crack, the greater the influence on the reliability of the part. For a part area where cracks are not allowed to appear, a crack in the area may affect the safety of the part, and the deeper the crack, the greater the influence on the safety of the part.

[0091] Continuing with the turbine disc example, Figure 5A-5B The schematic diagram shows the result of dividing the turbine disc into regions using the method of the present invention. Specifically, Figure 5A-5B The various regions after the turbine disk is divided by the method 200 are shown in FIG.

[0092] 1. Key areas: A3 turbine disc web area flange torque transmission area; tenon and groove areas A1, A8, A9, A10, A11 (the tenon and groove areas are Figure 5B ).

[0093] 2. Important areas: flange mounting surface A4, flange mounting hole A6, flange centering stop A7. Comb tooth area S.

[0094] 3. General area: web area A2, mortise and tenon end surface A5.

[0095] Through method 200, the regional division of parts can be determined, and the impact of each area on the safety and reliability of the parts can be effectively identified, thereby maximizing the use value of the parts and providing a basis for limiting the damage of the parts.

[0096] As another example, Figure 6 A schematic diagram of the region division results of a typical leaf is shown. Specifically, Figure 6 The various regions after a typical leaf is divided by method 200 are shown:

[0097] 1. Key areas: blade root area A and tenon area D.

[0098] 2. Important areas: inlet edge area and exhaust edge area B; blade body area C, exhaust edge blade tip area N.

[0099] also, Figure 6 The maintenance limit dimensions of each area are also given schematically to facilitate the subsequent maintenance of the parts.

[0100] Figure 3 A flow chart of another exemplary method 300 for dividing a part into regions according to the present invention is shown.

[0101] like Figure 3 As shown, the method 300 starts at step 305. At step 305, a region division of a part is obtained.

[0102] For example, step 305 may correspond to step 225 of method 200. Step 225 has been described above in conjunction with Figure 2 It has been described and will not be repeated here.

[0103] At step 310, damage limits for various regions of the part may be determined.

[0104] In various embodiments of the present invention, the damage limit indicates the damage allowed to occur in each region of the part. Specifically, the damage limit of each divided region can be determined based on the damage principle of the part.

[0105] The damage principle defines the damage that is allowed / not allowed to occur in the part as a whole, while the damage limit defines the damage that is allowed / not allowed to occur in each region of the part. In this sense, the damage principle can be regarded as a more global damage constraint (for example, a damage constraint for a certain type of part), while the damage limit can be regarded as a more local damage constraint (for example, a damage constraint for each region of a part).

[0106] At step 315, it may be determined whether the damage limitation meets the desired design requirements.

[0107] The expected design requirements may refer to the sum of various requirements put forward for a part during design in order to enable the designed part to operate normally. In practice, the expected design requirements specific to a specific part may be defined for the part. For example, a person skilled in the art may determine the expected design requirements for the part based on various factors such as the purpose of the specific part, the environment in which it is used (temperature, altitude, pressure, etc.), and the material. For example, the expected design requirements may include the expected service life of the part, the expected operating temperature range, the expected shape, the expected size, the expected weight, the expected operating state (such as the expected rotational speed of the turbine disc), and the like.

[0108] If it is determined that the damage limitation meets the desired design requirements (decision box 315 is "yes"), it means that the area division of the part and the damage allowed in each area are reasonable / acceptable for the safety and reliability of the part. At this point, method 300 can proceed to step 320 and complete the part design.

[0109] If it is determined that the damage limit does not meet the desired design requirements (decision box 315 is "No"), it means that the area division of the part and the damage allowed in each area are unreasonable / unacceptable for the safety and reliability of the part. In other words, the part designed according to the current part area division and damage limit definition is likely to be unable to operate safely and reliably.

[0110] In some embodiments, the failure of the damage limit to meet the desired design requirements may be due to an unreasonable zoning of the part. In such cases, the zoning of the part may be updated (325). The process may then return to step 310 to determine the damage limit based on the updated zoning and determine again whether the damage limit is reasonable. In some cases, after several zoning updates, the damage limit may meet the desired design requirements.

[0111] In some embodiments, the failure of damage limitation to meet the desired design requirements may be due to an unreasonable part design. In such cases, it may be possible that updating the region partitioning based on the current design of the part does not meet the desired design requirements. Thus, it may be possible to consider updating the part design (i.e., changing the current part design).

[0112] Specifically, in some implementations, a threshold number of times (such as 3) for updating the region division may be set. For example, after executing step 325 for 3 times, if the corresponding damage limit still cannot meet the expected design requirements, the method 300 may proceed to step 330 and update the part design. Subsequently, the method may return to execute step 305, re-dividing the region for the new part design, re-determining the damage limit, and re-determining whether the damage limit is reasonable.

[0113] In this way, the design process of the part can be effectively improved, while the use value of the part can be maximized through the definition of damage limits.

[0114] Figure 7 A system 700 for partitioning a part according to the present invention is shown.

[0115] like Figure 7 As shown, the system 700 may include a design acquisition module 705, a first analysis module 710, a damage principle module 715, a second analysis module 720, a region partition module 725, a third analysis module 730, a damage limitation module 735, and an update module 740. Each of these modules may be directly or indirectly connected or communicated with each other on one or more buses 745.

[0116] In various embodiments of the present invention, the design acquisition module 705 may be configured to: obtain an initial design of a part.

[0117] The first analysis module 710 may be configured to perform safety and reliability analysis on an initial design of a part to obtain a first analysis result.

[0118] The damage principle module 715 may be configured to establish a damage principle for the part based on the first analysis result, the damage principle indicating a principle for damage to occur in the part.

[0119] In some embodiments, damage occurring in a part includes, but is not limited to, one or more of the following: cracks, chemical corrosion, electrochemical corrosion, material discoloration, scratches, nicks, dents, chipping, metal protrusions, burrs, and wear.

[0120] In some embodiments, the damage principle module 715 is further configured to: establish a tolerance design state of the part based on the first analysis result, the tolerance design state indicating the design criteria followed by the part and the corresponding part limit range; and determine the damage principle according to the tolerance design state.

[0121] The second analysis module 720 may be configured to perform strength analysis on each region of the part based on a damage principle to obtain a second analysis result.

[0122] The region division module 725 can be configured to: divide the part into regions based on the second analysis result to divide each region of the part into one of a critical region, an important region, and a general region, wherein the critical region refers to the region related to the safety of the part, the important region refers to the region related to the reliability of the part, and the general region refers to the region of the part other than the critical region and the important region.

[0123] The third analysis module 730 may be configured to perform structure and performance analysis on the part after the strength analysis to obtain a third analysis result.

[0124] In case of performing structural and performance analysis on a part, performing region division on the part is further based on the second analysis result and the third analysis result.

[0125] The damage limitation module 735 may be configured to determine the damage limit of each divided region based on a damage principle, where the damage limit indicates the damage allowed to occur in each region of the part.

[0126] The damage limitation module 735 is further configured to determine whether the damage limitation meets the expected design requirements.

[0127] The updating module 740 may be configured to update the region partitioning of the part and determine the damage limit based on the updated region partitioning if the damage limit does not meet the desired design requirements.

[0128] In some embodiments, the updating module 740 is further configured to update the initial design of the part before updating the region division of the part.

[0129] It should be understood that Figure 7 Only one example of a system 700 for partitioning parts into regions is shown. In other examples, the system for partitioning parts into regions of the present invention may be implemented in different ways. For example, one or more modules may be added or omitted, or multiple modules may be merged or integrated. For example, in some implementations, the second analysis module 720 and the third analysis module 730 may be merged into a single module.

[0130] Figure 8 A block diagram of an apparatus 800 including a system for region segmenting a part is shown.

[0131] The apparatus illustrates a general hardware environment in which the present invention may be applied according to its exemplary embodiments.

[0132] Now refer to Figure 8 Device 800 is described, which is an exemplary embodiment of a hardware device that can be applied to various aspects of the present invention. Device 800 can be any machine configured to perform processing and / or computing, and can be, but is not limited to, a workstation, a server, a desktop computer, a laptop computer, a tablet computer, a personal digital assistant (PDA), a smart phone, or any combination thereof. The above system can be implemented in whole or in part by device 800 or a similar device or system.

[0133] The device 800 may include components that may be connected or in communication with the bus 830 via one or more interfaces. For example, the device 800 may include a bus 830, a processor 805, a memory 810, an input device 820, and an output device 825, among other things.

[0134] The processor 805 may be any type of processor and may include, but is not limited to, a general purpose processor and / or a dedicated processor (e.g., a special processing chip), an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 805 may be configured to operate a memory array using a memory controller. In other cases, a memory controller (not shown) may be integrated into the processor 805. The processor 805 may be responsible for managing the bus and general processing, including executing software stored on the memory. The processor 805 may also be configured to perform various functions described herein related to partitioning parts into regions. For example, the processor 805 can be configured to: obtain an initial design of a part; perform a safety and reliability analysis on the initial design of the part to obtain a first analysis result; establish a damage principle for the part based on the first analysis result, the damage principle indicating a principle for damage to occur in the part; perform a strength analysis on each region of the part based on the damage principle to obtain a second analysis result; and perform region division on the part based on the second analysis result to divide each region of the part into one of a critical region, an important region, and a general region, wherein a critical region refers to a region related to the safety of the part, an important region refers to a region related to the reliability of the part, and a general region refers to a region of the part other than the critical region and the important region.

[0135] The memory 810 may be any storage device that enables data storage. The memory 810 may include, but is not limited to, a disk drive, an optical storage device, a solid-state memory, a floppy disk, a floppy disk, a hard disk, a tape or any other magnetic medium, an optical disk or any other optical medium, a ROM (read-only memory), a RAM (random access memory), a cache memory, and / or any other memory chip or cartridge, and / or any other medium from which a computer can read data, instructions, and / or code. The memory 810 may store computer executable software 815 including computer readable instructions that, when executed, cause the processor to perform various functions described herein in connection with zone partitioning of parts.

[0136] Input device 820 may be any type of device that can be used to input information.

[0137] Output device 825 may be any type of device for outputting information. In one embodiment, output device 825 may be any type of output device that can display information.

[0138] The detailed description described above in conjunction with the accompanying drawings describes examples and does not represent all examples that can be implemented or fall within the scope of the claims. The terms "example" and "exemplary" when used in this specification mean "used as an example, instance or illustration" and do not mean "better or better than other examples".

[0139] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, use of these phrases may refer to more than just one embodiment. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0140] The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the universal principles defined herein may be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but should be granted the full scope consistent with the claims in language, wherein the singular reference to the elements is not intended to mean "there is and only one", but "one or more", unless otherwise specifically stated. Unless otherwise specifically stated, the term "some" refers to one or more. The elements of the various aspects described throughout the present invention are all structurally and functionally equivalent schemes currently or hereafter known to those of ordinary skill in the art and are expressly incorporated herein by reference, and are intended to be covered by the claims.

[0141] It should also be noted that these embodiments may be described as a process depicted as a flow chart, flow diagram, structure diagram, or block diagram. Although the flow chart may describe the operations as sequential processes, many of these operations can be performed in parallel or concurrently. In addition, the order of these operations can be rearranged.

[0142] Although various embodiments have been illustrated and described, it should be understood that the embodiments are not limited to the precise configuration and components described above. Various modifications, substitutions and improvements obvious to those skilled in the art may be made in the arrangement, operation and details of the devices disclosed herein without departing from the scope of the claims.

Claims

1. A method for dividing a part into regions, include: obtaining an initial design of the part; Performing safety and reliability analysis on the initial design of the part to obtain a first analysis result; establishing a damage principle for the part based on the first analysis result, the damage principle indicating a principle for damage to occur in the part; Performing strength analysis on each region of the part based on the damage principle to obtain a second analysis result; as well as Based on the second analysis result, the part is divided into regions to divide each region of the part into one of a critical region, an important region, and a general region, wherein the critical region refers to a region related to the safety of the part, the important region refers to a region related to the reliability of the part, and the general region refers to a region of the part other than the critical region and the important region.

2. The method according to claim 1, It is characterized in that Establishing the damage principle of the part based on the first analysis result further includes: Establishing a tolerance design state of the part based on the first analysis result, the tolerance design state indicating a design criterion followed by the part and a corresponding part limit range; and The damage principle is determined according to the tolerance design state.

3. The method according to claim 1, It is characterized in that Further including: After the strength analysis, a structure and performance analysis is performed on the part to obtain a third analysis result, wherein the region division of the part is based on the second analysis result and the third analysis result.

4. The method according to claim 1, It is characterized in that The damage includes one or more of the following: cracks, chemical corrosion, electrochemical corrosion, material discoloration, scratches, notches, dents, chipping, metal protrusions, burrs, and wear.

5. The method according to claim 1, It is characterized in that Further including: The damage limit of each divided region is determined based on the damage principle, and the damage limit indicates the damage allowed to occur in each region of the part.

6. The method according to claim 5, It is characterized in that Further including: Determine whether the damage limitation meets the desired design requirements.

7. The method according to claim 6, It is characterized in that Further including: If the damage limit does not meet the desired design requirement, the region division of the part is updated and the damage limit is determined based on the updated region division.

8. The method according to claim 7, It is characterized in that Further including: Before updating the region division of the part, the initial design of the part is updated.

9. A system for dividing parts into regions, include: A design acquisition module is configured to: obtain an initial design of the part; A first analysis module is configured to: perform safety and reliability analysis on the initial design of the part to obtain a first analysis result; a damage principle module, configured to: establish a damage principle for the part based on the first analysis result, the damage principle indicating a principle for damage to occur in the part; A second analysis module is configured to: perform strength analysis on each region of the part based on the damage principle to obtain a second analysis result; as well as A region division module is configured to: divide the part into regions based on the second analysis result to divide each region of the part into one of a critical region, an important region, and a general region, wherein the critical region refers to a region related to the safety of the part, the important region refers to a region related to the reliability of the part, and the general region refers to a region of the part other than the critical region and the important region.

10. The system according to claim 9, It is characterized in that The damage principle module is further configured to: Establishing a tolerance design state of the part based on the first analysis result, the tolerance design state indicating a design criterion followed by the part and a corresponding part limit range; as well as The damage principle is determined according to the tolerance design state.

11. The system according to claim 9, It is characterized in that Further including: A third analysis module is configured to: after the strength analysis, perform structure and performance analysis on the part to obtain a third analysis result, wherein the region division of the part is based on the second analysis result and the third analysis result.

12. The system according to claim 9, It is characterized in that The damage includes one or more of the following: cracks, chemical corrosion, electrochemical corrosion, material discoloration, scratches, notches, dents, chipping, metal protrusions, burrs, and wear.

13. The system according to claim 9, It is characterized in that It further includes a damage limitation module, which is configured to: determine damage limits for each divided area based on the damage principle, wherein the damage limit indicates damage allowed to occur in each area of ​​the part.

14. The system according to claim 13, It is characterized in that The damage limitation module is further configured to determine whether the damage limitation meets the expected design requirements.

15. The system according to claim 14, It is characterized in that The method further includes an updating module configured to: if the damage limit does not meet the desired design requirement, update the region division of the part and determine the damage limit based on the updated region division.

16. The system according to claim 15, It is characterized in that The updating module is further configured to update an initial design of the part before updating the region division of the part.

17. A computer-readable storage medium storing a computer program for dividing a part into regions, wherein the computer program can be executed by a processor to perform the method according to any one of claims 1 to 8.

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