Equipment digital prototype examination and analysis method

Abstract

The invention provides an equipment digital prototype examination and analysis method in the field of digitization. Comprising the steps of equipment product structure tree hierarchical management, equipment three-dimensional model customization conversion, equipment digital prototype rapid configuration, equipment digital prototype immersive virtual balance and equipment digital prototype review analysis. The equipment digital prototype is examined and analyzed through hierarchical management of an equipment product structure tree, customized conversion of an equipment three-dimensional model, rapid configuration of the equipment digital prototype, immersive virtual balance of the equipment digital prototype and examination and analysis of the equipment digital prototype; the manufacturability, the interference, the model integrity, the model accuracy, the interface matching property, the installation visual accessibility, the maintainability and the like of the equipment digital prototype model are quickly examined and analyzed, so that support is provided for the authority and the reliability of the design model. The method is suitable for being used as an equipment digital prototype examination and analysis method.

Description

Technical Field

[0001] The invention relates to the field of digital technology, and in particular to a method for reviewing and analyzing a digital prototype of equipment. Background Art

[0002] With the development of new digital product development technologies such as computer modeling technology, product data management technology and multidisciplinary collaborative design technology, digital prototype technology is becoming more and more common in the engineering field. The application of digital prototype technology in the fields of equipment design, simulation and manufacturing has replaced the traditional development model driven by physical tests, forming a simulation-driven digital prototype design process, greatly improving work efficiency and shortening the product development cycle.

[0003] Digital prototype technology is increasingly being used throughout the life cycle of equipment development, and there are more and more types of digital prototypes. According to the development stage, digital prototypes can be divided into level 1 prototypes, level 2 prototypes, and level 3 prototypes. Level 1 prototypes are formed in the preliminary design stage of equipment to support multi-scheme design iterations and selection; level 2 prototypes are formed in the detailed preliminary design stage to support multi-disciplinary design coordination; level 3 prototypes are formed in the detailed design stage to support product detailed design and trial production. According to product structure, digital prototypes can be divided into structural prototypes, system prototypes, partition prototypes, and equipment prototypes. According to the purpose of the prototype, digital prototypes can be divided into simulation prototypes, process prototypes, training prototypes, and service support prototypes.

[0004] Prototype review is a typical case of digital prototype application. It conducts interference checks, clearance checks, motion analysis, disassembly and assembly analysis, and maintainability checks at different levels on assembled digital prototypes, so as to discover problems in the prototype in advance in a digital environment and reduce the impact of problems in subsequent equipment development. Digital prototype review involves various areas and systems of equipment, and can be divided into whole machine review, section review, and regional review according to the scope of review. During the review, it is necessary to determine the scope of review based on the review requirements and obtain the design modules within the scope of review. The process of obtaining design modules according to the review scope can be converted into a process of dynamically filtering design modules from multiple product structure trees according to configuration conditions.

[0005] The present invention innovates an analysis method for reviewing a digital prototype of equipment, which can complete the review and analysis of the digital prototype of equipment more quickly and smoothly. Summary of the invention

[0006] In order to solve the deficiencies in the prior art and address the problem of equipment digital prototype review, the present invention provides an equipment digital prototype review and analysis method. The method provides support for the authority and reliability of the design model and solves the technical problem of equipment digital prototype review by quickly reviewing and analyzing the processability, interference, model integrity, model accuracy, interface matching, installation visual accessibility, and maintainability of the equipment digital prototype model.

[0007] The solution adopted by the present invention to solve the technical problem is: A method for reviewing and analyzing equipment digital prototypes, which reviews and analyzes equipment digital prototypes through hierarchical management of equipment product structure trees, customized conversion of equipment three-dimensional models, rapid configuration of equipment digital prototypes, immersive virtual balancing of equipment digital prototypes, and review and analysis of equipment digital prototypes; 1. Equipment product structure tree hierarchical management The elements that constitute the product structure tree of the digital prototype of equipment are divided into two categories, one is the design model, and the other is the virtual node used to organize and manage the design model. Therefore, the product structure tree is divided into the management layer and the design layer; the management layer does not involve the definition and information description of the design model. It is a specific view constructed from the dimensions of data organization and configuration management, and can be divided into levels according to the different granularities of management; the management layer can be defined from multiple dimensions, and the management layer of the structural prototype can be defined to manage the structural components of the equipment; the design layer is defined based on the modular management method, which decomposes the equipment into a series of design modules to form a design module library for the equipment. In addition to the digital prototype model, the design layer data of the digital prototype should also include hierarchical management of the equipment product structure tree, including product information expressed by the three-dimensional model, such as component structure, weight information and material size information, and unifying this information under each information node of the product structure tree. By extracting the product information expressed by the three-dimensional model in a structured manner, the extraction results are centrally managed with the CAD model and the lightweight model to form a single data source, thereby realizing hierarchical management of the equipment product structure tree.

[0008] 2. Customized conversion of equipment 3D models The 3D models contained in the digital prototype are divided into two categories: CAD original models and lightweight models; the CAD original model contains complete model design process information and occupies a large storage space. The lightweight model is a model obtained by simplifying the CAD model, which retains the spatial geometric information of the original model; different engineering application scenarios have different requirements for models. The process design, tooling design and other links in the digital manufacturing process need to be sent based on the CAD model to support digital manufacturing; when conducting overall equipment coordination, interference inspection and training demonstration work, the modeling process of the CAD original model is not paid attention to. At the same time, considering the calculation and rendering efficiency factors, lightweight models that occupy less storage space and are more convenient to use are usually adopted. In order to meet the requirements of lightweight model formats and accuracy in different usage scenarios, a variety of lightweight formats are provided, such as 3DXML and cgr, which provide the ability to lightweight models according to accuracy, and realize the personalized customization of 3D model lightweight conversion needs for different users.

[0009] 3. Rapid configuration of digital prototype equipment Establishing a single data source for equipment is the basis for rapid configuration of digital prototypes. It is necessary to build a unified management layer information library and design layer information library; the management layer information library records the management views of fixed classes and personalized definition classes, and the design layer information library records CAD models and lightweight models; after the management information library and the design information library are built, it is necessary to build the relationship between the management layer and the design layer to form a complete product structure tree. The rapid configuration of the digital prototype of equipment varies according to the timing of business development. During the equipment development process, all relationships associated with the changed design modules will be updated. Through the rapid configuration of the digital prototype of equipment, the efficiency of digital prototype data update can be ensured.

[0010] 4. Equip digital prototype immersive virtual balance In the constructed regional model, immersive virtual balancing is performed on the digital prototype of the equipment with a fixed simulation state. The handle controller and ART optical motion capture system are used to perform immersive virtual balancing analysis. In the virtual balancing process, various parameters of the digital prototype of the equipment are obtained in real time and quickly. The installation position, installation space, visual accessibility and maintainability of the digital prototype of the equipment are balanced to improve the balancing efficiency of the digital prototype.

[0011] 5. Equipment digital prototype review and analysis The digital prototype model of the equipment with a fixed simulation state is reviewed and manipulated at the review end. The handle controller and ART optical motion capture system are used for review and analysis, including process verification and planning, channel interference analysis, installation visual accessibility analysis, and real people are used to operate in a virtual environment. The various performances of the digital prototype of the equipment are analyzed through stereo glasses, ultimately achieving a review and analysis of the digital prototype of the equipment.

[0012] Positive effect, because the present invention reviews and analyzes the equipment digital prototype through hierarchical management of the equipment product structure tree, customized conversion of equipment three-dimensional models, rapid configuration of equipment digital prototypes, immersive virtual balancing of equipment digital prototypes, and review and analysis of equipment digital prototypes. The processability, interference, model integrity, model accuracy, interface matching, installation visual accessibility, maintainability, etc. of the equipment digital prototype model are quickly reviewed and analyzed, thereby providing support for the authority and reliability of the design model. It is suitable for application as a review and analysis method for equipment digital prototypes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The description of the present invention is given for the purpose of example and description, and is not exhaustive or limits the present invention to the disclosed form. Many modifications and changes are obvious to ordinary technicians in this field. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and enable ordinary technicians in this field to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0014] Figure 1 This is a block diagram of this embodiment. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0016] As shown in the figure, a method for reviewing and analyzing equipment digital prototypes reviews and analyzes equipment digital prototypes through hierarchical management of equipment product structure tree, customized conversion of equipment three-dimensional models, rapid configuration of equipment digital prototypes, immersive virtual balancing of equipment digital prototypes, and review and analysis of equipment digital prototypes.

[0017] Take the digital prototype model of a reciprocating salt discharge pump as an example: The equipment product structure tree is managed in layers, and the digital prototype model of the reciprocating salt removal pump is assembled at the parts level. Information such as component structure, weight information, and material dimensions are extracted. The external dimensions, geometric center, and assembly structure information of the reciprocating salt removal pump are mainly recorded parametrically. Various prototype information is arranged one by one in the product structure tree, and the product model of the digital prototype is constructed and managed in the form of a classification tree.

[0018] The equipment 3D model is customized for conversion. Because the original model occupies a large space and has many faces, the reciprocating salt pump model is lightweight and the spatial geometric information of the original model is retained. The model is converted into a file type suitable for the virtual balance system and imported into the virtual balance system, thus completing the customized conversion of the equipment 3D model.

[0019] The digital prototype of the equipment is quickly configured, and the information library of the management layer and design layer of the reciprocating salt removal pump is constructed to form a complete product structure tree. According to the requirements of the model balance timing, the digital prototype model of the reciprocating salt removal pump is quickly configured. Through the manufacturing simulation module in the 3D design platform, the technical status of the reciprocating salt removal pump model is solidified, and the digital prototype model of the reciprocating salt removal pump is quickly configured.

[0020] The digital prototype of the equipment is subjected to immersive virtual balancing. The operator conducts interactive comprehensive simulation analysis on the reciprocating salt discharge pump with a fixed technical status of the model in the area in the immersive virtual reality system. The operator wears an optical motion capture suit, holds the simulation tool driving tool in the left hand, and holds the handle controller in the right hand to review the reciprocating salt discharge pump model. The process personnel and front-line construction personnel wear infrared stereo glasses and participate in the immersive virtual balancing of the three-dimensional model of the reciprocating salt discharge pump. The digital prototype of the reciprocating salt discharge pump can be analyzed and evaluated at the first time, and the installation process of the reciprocating salt discharge pump can be interacted with in real time to better balance the processability of the digital prototype of the reciprocating salt discharge pump.

[0021] Conduct a comprehensive review and analysis on the digital prototype of the equipment, review the digital prototype model of the reciprocating salt discharge pump, operate it at the review end, use the handle controller and ART optical motion capture system to conduct the review and analysis, including process verification and planning of the reciprocating salt discharge pump, channel interference analysis, installation visual accessibility analysis, use real people to operate in a virtual environment, and analyze the various performances of the digital prototype of the equipment through stereo glasses, ultimately achieving a review and analysis of the digital prototype of the reciprocating salt discharge pump.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for reviewing and analyzing a digital prototype of equipment, characterized by: The following steps are involved: 1) Hierarchical management of equipment product structure tree: The elements that constitute the product structure tree of the equipment digital prototype are divided into two categories, one is the design model, and the other is the virtual node used to organize and manage the design model. Therefore, the product structure tree is divided into the management layer and the design layer; the management layer does not involve the definition and information description of the design model. It is a specific view constructed from the dimensions of data organization and configuration management, and can be divided into levels according to the different granularity of management; the management layer can be defined from multiple dimensions, and the management layer of the structural prototype can be defined to manage the structural components of the equipment; the design layer is defined based on the modular management method, and the equipment is decomposed into a series of design modules to form a design module library for the equipment. In addition to the digital prototype model, the design layer data of the digital prototype should also include hierarchical management of the equipment product structure tree, including product information expressed by the three-dimensional model, such as component structure, weight information and material size information, and unifying this information under each information node of the product structure tree. By extracting the product information expressed by the three-dimensional model in a structured manner, the extraction results are centrally managed with the CAD model and the lightweight model to form a single data source, thereby realizing hierarchical management of the equipment product structure tree; 2) Customized conversion of equipment 3D models: The 3D models included in the digital prototype are divided into two categories: the original CAD model and the lightweight model. The original CAD model contains complete model design process information and occupies a large storage space. The lightweight model is a simplified CAD model that retains the spatial geometric information of the original model. Different engineering application scenarios have different requirements for models. In the digital manufacturing process, process design, tooling design and other links need to be sent based on CAD models to support digital manufacturing; When conducting overall equipment coordination, interference inspection and training demonstration work, the modeling process of the original CAD model is not focused on. At the same time, considering the calculation and rendering efficiency factors, lightweight models that occupy less storage space and are more convenient to use are usually adopted. In order to meet the requirements of lightweight model formats and accuracy in different usage scenarios, a variety of lightweight formats are provided, such as 3DXML and cgr, and the ability to perform lightweight processing of models according to accuracy is provided to achieve personalized customization of lightweight conversion requirements of 3D models for different users; 3) Rapid configuration of digital prototype equipment: Establishing a single data source for equipment is the basis for rapid configuration of digital prototypes. It is necessary to build a unified management layer information library and design layer information library; the management layer information library records the management views of fixed classes and personalized definition classes, and the design layer information library records CAD models and lightweight models; after the management information library and the design information library are built, it is necessary to build the relationship between the management layer and the design layer to form a complete product structure tree. The rapid configuration of the equipment digital prototype is based on the different business development opportunities. During the equipment development process, all relationships associated with the changed design modules will be updated. Through the rapid configuration of the equipment digital prototype, the efficiency of the digital prototype data update is ensured; 4) Equip digital prototype immersive virtual balance: In the built regional model, the equipment digital prototype with fixed simulation status is subjected to immersive virtual balancing. The handle controller and ART optical motion capture system are used for immersive virtual balancing analysis. Various parameters of the equipment digital prototype are obtained in real time and quickly during the virtual balancing process. The installation position, installation space, visual accessibility and maintainability of the equipment digital prototype are balanced to improve the balancing efficiency of the digital prototype. 5) Equipment digital prototype review and analysis: The digital prototype model of the equipment with a fixed simulation state is reviewed and manipulated at the review end. The handle controller and ART optical motion capture system are used for review and analysis, including process verification and planning, channel interference analysis, installation visual accessibility analysis, and real people are used to operate in a virtual environment. The various performances of the digital prototype of the equipment are analyzed through stereo glasses, ultimately achieving a review and analysis of the digital prototype of the equipment.

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