Assembly process design method for test flight refitting
By standardizing MBD information design assembly modules and process classification, the problem of insufficient adaptability of existing assembly processes has been solved, and efficient, accurate and flexible assembly process design for flight test modification has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINESE FLIGHT TEST ESTAB
- Filing Date
- 2026-02-25
- Publication Date
- 2026-05-15
AI Technical Summary
Existing assembly processes are difficult to adapt to diverse assembly scenarios, and the guidance is not targeted enough, making it impossible to quickly respond to customized modification needs. As a result, flight test modification work is difficult to improve efficiency while ensuring quality.
The assembly module is designed using standardized MBD information. Based on MBD information, related processes are derived from the assembly process library, clarifying the process categories and contents, refining the process information, and using different colors, fonts or font sizes to distinguish process categories, ensuring the accuracy and flexibility of information.
It enables rapid response to small-batch customized modification needs, improves process design efficiency and quality, reduces design deviations, clarifies construction guidelines, reduces human error, and improves the accuracy and efficiency of on-site operations.
Smart Images
Figure CN122046545A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of aircraft flight testing technology, and in particular to an assembly process design method for flight test modification. Background Technology
[0002] Flight testing is an essential step in aircraft development, characterized by high risk and customization. Aircraft used for flight testing are typically called test aircraft. Different test aircraft of the same model require customized flight test modifications for different test subjects and points due to their varying testing missions, including the addition of various testing equipment and sensors. Flight test modification and assembly work has significant unique characteristics: compared to airborne equipment and finished product assembly, it involves fewer procedures but is more complex, and is greatly affected by the aircraft's condition, tooling, and personnel experience. It falls under the category of small-batch or single-piece operations in specialized, customized scenarios.
[0003] Against this backdrop, existing assembly processes suffer from problems such as difficulty in adapting to diverse assembly scenarios, insufficient guidance for on-site assembly, and inability to quickly respond to customized modification needs, making it difficult for flight test modification work to balance assembly quality with efficiency. Summary of the Invention
[0004] The purpose of this invention is to provide an assembly process design method for flight test modification, thereby solving the above-mentioned technical problems.
[0005] To achieve the above objectives, the present invention provides an assembly process design method for flight test modification, comprising the following steps: S1. Determine the assembly design module, which includes assembly objects and assembly information, all of which use standardized MBD information; S2. Based on the transmission and matching of MBD information, derive the assembly process associated with this module from the typical processes in the assembly process library. S3. Determine the content, sequence, and category of the processes in the assembly process; S4. Determine the content of each process step and complete the process step information.
[0006] Preferably, S1 specifically includes: the assembly objects of the assembly design module include a group of equipment, self-made parts, and standard parts that have assembly relationships with each other. The equipment, self-made parts, and standard parts are all defined with standardized MBD information in a unified specification format. The standardized MBD information is a digital technology carrier that integrates product design, manufacturing, and testing process information in a unified specification format with a three-dimensional model as the core. The assembly information in the module adopts the same standard MBD information format, and the assembly design module has an assembly association with the original testing machine or a variant of the original machine.
[0007] Preferably, S2 specifically includes: S21. Extract the MBD information corresponding to the model, specifications, structural parameters, and assembly position segment identifiers and coordinate information of the assembly object in the assembly design module as derived keywords. S22. The assembly process library is divided into major categories according to assembly type. Each major category is further subdivided into typical processes according to the type of assembly object. Based on keywords, the library uses exact matching or fuzzy matching to select suitable typical processes in the corresponding sub-categories. S23. Copy typical process content to generate a new assembly process directly associated with the assembly design module. At the same time, only replace the attribute information at the typical process level, while keeping the original information at the process and step level unchanged.
[0008] Preferably, S3 specifically includes: S31. Divide the processes into categories A, B, and C. Category A processes are derived from the assembly process library. Category A processes have a fixed order within a single assembly process. Category B processes are the original Category A processes whose preceding processes have changed after adding, deleting, or moving Category A processes. Category C processes are manually added processes, and each Category C process has its own typical process library with no relation between them. S32. Based on the technical characteristics of the assembly design module, clarify the specific work content and execution sequence of each process, and classify the corresponding process categories.
[0009] Preferably, S4 specifically includes: S41. Each process shall contain at least one step, and the step shall cover one or more of the following information: implementation object or equipment, self-made parts, standard parts, tools, methods or parameters. The step information shall include fixed information determined by the type of implementation object or equipment and dynamic information dynamically associated with the MBD information of the assembly design module. S42. Based on the assembly requirements of the assembly design module, clarify the specific content of each step and supplement the fixed and dynamic information.
[0010] Preferably, the assembly design module in S1 refers to an independent design unit formed by integrating the equipment to be assembled, self-made parts, and standard parts according to the assembly relationship in order to achieve specific flight test modification functions.
[0011] Preferably, the standardized MBD information in S1 specifically refers to the digital information that defines and stores the model, specifications, structural parameters, assembly requirements, and assembly relationship information between objects within the assembly design module in a unified and standardized format.
[0012] Preferably, in S3, the process categories are distinguished by different colors, fonts or font sizes, and the A, B and C types of processes are clearly marked. The marking information is simultaneously displayed before the process name in the process document. Among them, the A type process mark corresponds to a fixed and mature process, the B type process mark corresponds to a process affected by operation, and the C type process mark corresponds to a newly added process.
[0013] Preferably, the fixed information in S4 includes the method class language description information, tool type information and general quantitative parameters corresponding to the implementation object or equipment; the dynamic information includes the implementation object or equipment model, self-made part specifications, standard part parameters, tool model and special quantitative parameters. The dynamic information is associated with the MBD information of the assembly design module through the consumable assembly method.
[0014] Preferably, fixed information can be modified, and after modification, its corresponding process is changed to a C-type process; dynamic information allows modification of its associated information, and the modification does not change the category of its corresponding process.
[0015] Therefore, the present invention employs the above-mentioned assembly process design method for flight test modification, which has the following beneficial effects: 1. No need to design from scratch, it can quickly respond to small-batch, single-piece customized modification scenarios, and avoid design deviations through the standardization of MBD information, ensuring the design quality of modification and assembly processes, adapting to the customized needs of flight test modification, and improving the efficiency and quality of process design.
[0016] 2. Clearly define the maturity level of each process to provide clear guidance for construction, reduce reliance on personnel experience, and balance construction efficiency and quality.
[0017] 3. Refine the design of process step information, divide process step information into fixed information and dynamic information, make process step operation guidance more specific and targeted, improve on-site operation guidance and design accuracy, and reduce manual input errors, thereby improving design efficiency while ensuring the accuracy of process step information.
[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0019] Figure 1 This is a flowchart illustrating the assembly process design for the flight test modification of this invention. Figure 2 This is a schematic diagram illustrating the process classification of the flight test modification of this invention; Figure 3 This is a schematic diagram of the process adjustment. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0021] It should be noted that the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or server that includes a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or device.
[0022] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0023] like Figures 1-3 As shown, the present invention provides an assembly process design method for flight test modification, comprising the following steps: S1, determining the assembly design module, which includes assembly objects and assembly information, all using standardized MBD information; S2, based on the transmission and matching of MBD information, deriving the assembly process associated with the module from typical processes in the assembly process library; S3, determining the content, sequence, and category of the steps in the assembly process; S4, determining the content of the work steps to which each step belongs, and improving the work step information.
[0024] Specifically, S1 includes: The assembly objects in the assembly design module consist of a group of equipment, self-made parts, and standard parts that have assembly relationships with each other. All equipment, self-made parts, and standard parts are defined with standardized MBD information in a unified format. This standardized MBD information uses a 3D model as the core carrier and integrates assembly objects according to a unified format, such as the model, specifications, structural parameters, key dimensional tolerances, assembly requirements, and assembly relationships between objects. Its data format, core information items, and associated logic are all unified, providing a consistent and accurate data foundation for process derivation, dynamic correlation of work steps, and cross-module data reuse in flight test modification scenarios, ensuring the accuracy and efficiency of process design. The assembly information within the assembly design module also adopts the same standard MBD information format, and the assembly design module has a clear assembly association with the original test aircraft or its variants. During implementation, the assembly design of one or more sensors of the same type installed in the same section (part) of the original aircraft is usually divided into an independent design module. If further refinement of assembly execution and management is required, multiple assembly processes can be defined based on the modification design module containing multiple assembly tasks, making the assembly objects of each process more focused. This classification method is suitable for customized scenarios of single-piece and small-batch flight test modifications, and it can also clarify the boundaries of process design, thereby improving the feasibility and management efficiency of subsequent assembly work.
[0025] S2 specifically includes: S21, extracting MBD information corresponding to the model, specifications, structural parameters, and assembly position segment identifiers and coordinate information of the assembly objects in the assembly design module as derived keywords; S22, dividing the assembly process library into major categories according to assembly type, including installation, dismantling, modification, debugging, and testing. Each major category is further subdivided into typical processes according to assembly object type, including sensors, testing equipment, etc. Based on keywords, suitable typical processes are selected in the corresponding subcategories using exact matching or fuzzy matching. The assembly process library is divided into installation, dismantling, modification, debugging, and testing according to the overall type of assembly work. The system is divided into major categories, and each category is further subdivided into typical processes based on the assembly operation objects, such as different types of sensors and special testing equipment. Each typical process contains structured information on procedures and steps. By combining classification refinement with keyword matching, suitable processes can be quickly located, avoiding design from scratch and significantly shortening the process design cycle. S23: Copy the content of typical processes to generate new assembly processes directly associated with the assembly design module. At the same time, only the attribute information at the typical process level is replaced, while the original information at the procedure and step levels remains unchanged. This derivation method can maximize the reliability of mature processes, reduce human deviations in customized designs, and ensure the consistency of process quality.
[0026] S3 specifically includes: S31, classifying processes into categories A, B, and C. Category A processes originate from the assembly process library, and have a fixed sequence within a single assembly process. Category B processes are original Category A processes whose preceding processes have changed after addition, deletion, or movement operations. Category C processes are manually added processes, and each Category C process has its own dedicated typical process library. There is no correlation between Category C processes. The dedicated typical process library for Category C processes needs to have a clearly defined entry review process, a data synchronization mechanism with the main assembly process library, and version update requirements. For example, when directly using typical processes from the process library, the processes are in a fixed sequence of A1, A2, A3, A4. If process C1 is added between A2 and A3, the preceding process of A3 becomes C1, and the original A3 automatically becomes process B3, changing the process sequence to A1, A2, C1, B3. If process A2 is further deleted, process C1 will not be affected by its predecessor. The process sequence will be adjusted to A1, C1, B3, A4. This adjustment rule ensures process flexibility and allows for tracing the process change logic through type identification. S32. Based on the technical characteristics of the assembly design module, the specific work content and execution sequence of each process are clarified, and corresponding process categories are divided. Through the classification design of A, B, and C processes, the maturity of processes can be intuitively distinguished. Category A is a mature and fixed process, Category B is a process affected by changes, and Category C is a newly added customized process. With prominent identification using different colors, fonts, or font sizes, such as using black regular font for Category A processes, blue bold font for Category B processes, and red italic font for Category C processes, clear guidance can be provided for construction personnel, reducing reliance on personnel experience, lowering the rate of operational errors, and balancing construction efficiency and quality.
[0027] S4 specifically includes: S41, each process contains at least one step, and the step covers one or more of the following information: implementation object or equipment, self-made parts, standard parts, tools, methods or parameters. The step information includes fixed information determined by the type of implementation object or equipment and dynamic information dynamically associated with the MBD information of the assembly design module. For example, a step may be described as "using a torque wrench (XX specification) to connect the charge amplifier (XX model) to the original machine XX part using an HB1-201M5×16 screw and a GB1337-M5 self-locking nut combination, ensuring that the gap between the equipment and the operating system is not less than 6mm". Here, "using a torque wrench to connect the charge amplifier to the original machine structure using a screw and self-locking nut combination, ensuring that the gap between the equipment and the operating system is not less than 6mm" is fixed information, and "XX specification" is not fixed information. Specific models and specifications such as "XX model" are dynamic information. Dynamic information is automatically associated with the MBD information of the assembly object through a consumable assembly method. The consumable assembly method means that once the dynamic information is bound to the work step, this part of the MBD information cannot be associated with other work steps, ensuring the uniqueness and accuracy of assembly parameters. This reduces the workload of manual data entry and ensures the accuracy of parameters. Fixed information ensures the standardization of operation methods. S42. Based on the assembly requirements of the assembly design module, clarify the specific content of each work step, supplement the fixed information and dynamic information, and ensure that the work step information covers the four core elements of implementation object, tool type, operation method and quantitative parameters, with no missing information. This makes the work steps have unified operation specifications and can adapt to the details of different modification scenarios, improving the guidance and accuracy of on-site assembly.
[0028] Furthermore, the assembly design module in S1 refers to an independent design unit formed by integrating the equipment to be assembled, self-made parts, and standard parts according to their assembly relationships, based on the principle of matching the same type of modification object with the same section and matching the same assembly logic, in order to achieve specific flight test modification functions. This definition clarifies the scope and core objects of process design, providing a clear data carrier for subsequent MBD information matching and process derivation. The standardized MBD information in S1 specifically refers to the digital information that defines and stores the model, specifications, structural parameters, assembly requirements, and assembly relationship information between objects within the assembly design module in a unified and standardized format. The standardized information format breaks down data silos and provides a unified data foundation for information transmission and matching in S2 and dynamic correlation of process steps in S4, avoiding design deviations caused by inconsistent information formats. In S3, process categories are distinguished by different colors, fonts, or font sizes, with A, B, and C processes clearly marked. This marking information is simultaneously displayed before the process name in the process document. Specifically, A-class process markings correspond to fixed, mature processes; B-class process markings correspond to processes affected by operations; and C-class process markings correspond to newly added processes. This marking method is intuitive and easy to understand, facilitating quick identification of process attributes by construction personnel and providing a clear basis for process review and quality traceability. In S4, fixed information includes method descriptions, tool type information, and general quantitative parameters corresponding to the implementation object or equipment. Dynamic information includes the implementation object or equipment model, self-made part specifications, standard part parameters, tool models, and special quantitative parameters. Dynamic information is associated with the MBD information in the assembly design module through a consumable assembly method. That is, once a dynamic parameter in the MBD information is associated with a process step, it is uniquely bound to that step and cannot be reused for association with other steps. Fixed information can be modified, and after modification, its corresponding process will automatically be converted to a Class C process; dynamic information can be modified, and the category of its corresponding process will not be changed after modification. This rule can effectively trace changes in the core logic of the process, ensuring the standardization of the process. The information modification method not only gives the process the flexibility to adapt to customized needs, but also does not destroy the overall attribute judgment of the process, thus achieving a balance between standardization and customization.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.
Claims
1. An assembly process design method for flight test modification, characterized in that: Includes the following steps: S1. Determine the assembly design module, which includes assembly objects and assembly information, all of which use standardized MBD information; S2. Based on the transmission and matching of MBD information, derive the assembly process associated with this module from the typical processes in the assembly process library. S3. Determine the content, sequence, and category of the processes in the assembly process; S4. Determine the content of each process step and complete the process step information.
2. The assembly process design method for flight test modification according to claim 1, characterized in that: S1 specifically includes: The assembly objects of the assembly design module include a group of equipment, self-made parts, and standard parts that have assembly relationships with each other. The equipment, self-made parts, and standard parts are all defined with standardized MBD information in a unified specification format. Standardized MBD information is a digital technology carrier that integrates product design, manufacturing, and testing information in a unified specification format with a three-dimensional model as the core. The assembly information in the module adopts the same standard MBD information format, and the assembly design module has an assembly association with the original test machine or a variant of the original machine.
3. The assembly process design method for flight test modification according to claim 2, characterized in that: S2 specifically includes: S21. Extract the MBD information corresponding to the model, specifications, structural parameters, and assembly position segment identifiers and coordinate information of the assembly object in the assembly design module as derived keywords. S22. The assembly process library is divided into major categories according to assembly type. Each major category is further subdivided into typical processes according to the type of assembly object. Based on keywords, the appropriate typical processes are selected in the corresponding sub-categories using precise matching or fuzzy matching. S23. Copy typical process content to generate a new assembly process directly associated with the assembly design module. At the same time, only replace the attribute information at the typical process level, while keeping the original information at the process and step level unchanged.
4. The assembly process design method for flight test modification according to claim 3, characterized in that: S3 specifically includes: S31. Divide the processes into categories A, B, and C. Category A processes are derived from the assembly process library. Category A processes have a fixed order within a single assembly process. Category B processes are the original Category A processes whose preceding processes have changed after adding, deleting, or moving Category A processes. Category C processes are manually added processes, and each Category C process has its own typical process library with no relation between them. S32. Based on the technical characteristics of the assembly design module, clarify the specific work content and execution sequence of each process, and classify the corresponding process categories.
5. The assembly process design method for flight test modification according to claim 4, characterized in that: S4 specifically includes: S41. Each process shall contain at least one step, and the step shall cover one or more of the following information: implementation object or equipment, self-made parts, standard parts, tools, methods or parameters. The step information shall include fixed information determined by the type of implementation object or equipment and dynamic information dynamically associated with the MBD information of the assembly design module. S42. Based on the assembly requirements of the assembly design module, clarify the specific content of each step and supplement the fixed and dynamic information.
6. The assembly process design method for flight test modification according to claim 2, characterized in that: The assembly design module in S1 refers to an independent design unit formed by integrating the equipment to be assembled, self-made parts, and standard parts according to the assembly relationship in order to achieve specific flight test modification functions.
7. The assembly process design method for flight test modification according to claim 2, characterized in that: The standardized MBD information in S1 specifically refers to the digital information that defines and stores the model, specifications, structural parameters, assembly requirements, and assembly relationships between objects within the assembly design module in a unified and standardized format.
8. The assembly process design method for flight test modification according to claim 4, characterized in that: In S3, process categories are distinguished by different colors, fonts, or font sizes. A, B, and C processes are clearly marked, and the marking information is simultaneously displayed before the process name in the process document. Among them, A process marking corresponds to fixed and mature processes, B process marking corresponds to processes affected by operations, and C process marking corresponds to newly added processes.
9. The assembly process design method for flight test modification according to claim 5, characterized in that: Fixed information in S4 includes method class language description information, tool type information, and general quantitative parameters corresponding to the implementation object or equipment; dynamic information includes implementation object or equipment model, self-made part specifications, standard part parameters, tool model, and special quantitative parameters. Dynamic information is associated with MBD information in the assembly design module through consumable assembly methods.
10. The assembly process design method for flight test modification according to claim 9, characterized in that: Fixed information can be modified, and after modification, its corresponding process will be changed to a Class C process; dynamic information allows modification of its associated information, but the category of its corresponding process will not be changed after modification.