CN106407570A - An airplane assembling process online simulating optimization system - Google Patents

Abstract

An online simulation optimization system for an aircraft assembly process, characterized in that: an online simulation module, a data processing module, and a system optimization module. Data management, data interface standardization, simulation program evaluation, simulation program analysis, simulation program optimization. The invention not only uses real-time data to drive the on-line simulation of the on-site aircraft assembly process, but also optimizes the assembly scheme that does not meet the on-site assembly requirements, thereby providing the site with an optimal assembly scheme in real time and improving the aircraft assembly efficiency.

Description

An Aircraft Assembly Process Online Simulation Optimization System

technical field

The invention relates to a simulation technology, in particular to an equipment assembly simulation technology, in particular to an aircraft assembly process online simulation optimization system which realizes the online simulation optimization of the aircraft assembly site to improve the aircraft assembly efficiency.

Background technique

With the continuous improvement of the flexibility of modern aircraft assembly production lines, only the simulation of the aircraft assembly process can no longer meet the requirements of more efficient on-site assembly, and further analysis and evaluation of the simulation results are required, and on-site assembly solutions that do not meet the assembly requirements To optimize, so as to obtain a more effective assembly plan to guide the on-site assembly production, improve the on-site aircraft assembly efficiency, and improve the aircraft assembly quality.

At the same time, due to fierce market competition and customer demands that are developing in the direction of multi-variety and small batches, the production plan of aircraft may change at any time. Traditional simulation methods are time-consuming and labor-intensive, and it is difficult to reflect the situation of the aircraft assembly site in real time, and cannot cope with changing production requirements. In contrast, online simulation optimization can achieve functions such as data-driven simulation, real-time data collection, real-time display of results, and optimization of assembly plans, so that decision makers can grasp the situation at the aircraft assembly site in real time and obtain assembly plans that meet current production requirements in a timely manner , so as to ensure the smooth and efficient operation of assembly activities.

The existing aircraft assembly simulation optimization parameters are mainly derived from empirical data or set parameters, resulting in a large difference between the simulation process and the simulation results and the actual situation, and the optimization results are difficult to directly guide the aircraft assembly production. In addition, the traditional workshop production information acquisition relies on manual Data collection is carried out in the process of material distribution, task progress, and equipment utilization on the production site, resulting in poor real-time information and a small amount of information. This patent proposes online simulation optimization of aircraft assembly driven by real-time information.

Contents of the invention

The purpose of the present invention is to solve the existing aircraft assembly simulation optimization parameters mainly from empirical data or setting parameters, resulting in a large difference between the simulation process and the simulation results and the actual, and the optimization results are difficult to directly guide the aircraft assembly production. In addition, the traditional workshop The acquisition of production information relies on manual data collection of material distribution, task progress, equipment utilization and other processes on the production site, resulting in poor real-time information and a small amount of information. An online simulation optimization system for the aircraft assembly process is designed for the aircraft assembly site. Provide online simulation optimization, and use this system to realize the online simulation of the aircraft assembly site, and optimize the corresponding simulation model of the assembly site to obtain the optimization plan of the aircraft assembly.

Technical scheme of the present invention is:

An aircraft assembly process online simulation optimization system is characterized in that it includes:

An online simulation module, the online simulation module combined with the data processing module obtains the required aircraft assembly model data information from various databases, collects various assembly resource information on site through information collection equipment in real time to jointly drive the assembly model for simulation, and real-time according to the simulation The test results adjust the simulation parameters online, and finally combine with the 3D assembly simulation software to realize the real-time display of the simulation results, thereby realizing the online simulation of the aircraft assembly process; the online simulation module is mainly composed of a real-time acquisition sub-module, a data-driven sub-module and a real-time display sub-module;

A data processing module, the data processing module is based on SQL database management assembly process data, production process execution management system export data, assembly product data, resource model data, knowledge data, and defines standard interfaces for different types of data based on Extensible Markup Language, Guarantee the consistency and validity of data, and provide guarantee for real-time data interaction between system modules. The data processing module is mainly composed of data management sub-module, data interaction sub-module and data interface sub-module;

A system optimization module, the system optimization module builds the current aircraft assembly simulation model by calling the assembly product data, assembly resource data, and knowledge data in the data processing module, and performs production cycle, process man-hours, personnel planning, and production line bottleneck simulation on the model Analysis, and then evaluate the simulation analysis results from the perspectives of production schedule prediction, production capacity, equipment utilization rate, personnel utilization rate, and layout cost, and judge whether the current model meets the assembly requirements on site. If not, select the model from the knowledge base Corresponding optimization templates, optimization strategies, optimization methods, combined with simulation software to implement simulation optimization from the aspects of process flow, workshop layout, standard operations, resource management and production capacity, so as to obtain the best aircraft assembly plan required for on-site decision-making, system optimization module It is mainly composed of simulation optimization sub-module, simulation analysis sub-module and simulation evaluation sub-module;

A resource module, the resource module includes: model library, resource library, database and knowledge base sub-modules, the resource module is mainly responsible for managing the data resource management of the online simulation optimization system of the aircraft assembly process, and storing the data information required by each module of the system;

A simulation result output module, the simulation output module is the assembly process animation of the whole line, process simulation animation, workshop layout optimization results, process flow optimization results, layout cost statistics, production line balance statistics and online simulation optimization results of each aircraft assembly Output, and transmit the simulation optimization results to the resource module, production process execution management system and enterprise resource management system in real time through the data processing module;

Infrastructure, which provides initial information data collection for the online simulation optimization system of the aircraft assembly process, and at the same time feeds back the information data obtained by the system to the aircraft assembly site and other related systems. The infrastructure includes on-site information collection Devices, wireless positioning equipment, production process execution management systems of manufacturing enterprises, enterprise resource management systems, and equipment and systems required by various aircraft assembly sites.

The data-driven sub-module in the online simulation module obtains the required data information from the resource module and various assembly resource information collected in real time, and inputs the obtained data information into the simulation model to drive the assembly simulation in real time, and at the same time according to the simulation inspection results Adjusting the simulation parameters online makes the simulation of the aircraft assembly process real-time and effective; the real-time acquisition sub-module in the online simulation module is used to collect assembly process parameters in real time, the whole line Assembly parameters, production capacity information, personnel layout information, workshop layout information, workshop scheduling information, and aircraft assembly site data, and extract the data information required for aircraft assembly simulation from them after data processing, and then input them in real time together with the data information of the resource module to the data-driven sub-module; the real-time display sub-module in the online simulation module is used in combination with 3D assembly simulation software to realize real-time display of assembly simulation animation, assembly simulation information, assembly process information, resource management statistics, simulation evaluation information and various Simulation results, so as to facilitate the real-time monitoring of the aircraft assembly process by on-site personnel.

The data interaction sub-module in the data processing module is used to realize the data interaction transmission of each module in the system, and according to the data requirements of each module, the required data is sent to the relevant module through the corresponding data transmission path, thereby ensuring The real-time nature of the connection between the modules; the data management sub-module in the data processing module is based on SQL database management assembly process data, production process execution management system export data, assembly product data, resource model data, knowledge data, and at the same time Compare the data of the results obtained by each module in the system with the historical data in each database, and process various data management contents in real time, thereby efficiently managing system data; the data interface sub-module in the data processing module is Different standard interfaces are defined based on Extensible Markup Language technology to ensure the smooth data transmission of each module in the system, thus ensuring the real-time, consistency and validity of data.

The simulation optimization sub-module in the system optimization module is to select suitable optimization templates, optimization strategies, optimization methods and related parameters by means of the knowledge information in each database and the data transmitted by the data processing module. Operation, resource management and production capacity are simulated and optimized, and the feasibility of the optimization result is checked through the simulation verification of the optimization result, so as to obtain a real and feasible optimization plan for the aircraft assembly site; the simulation evaluation sub-module in the system optimization module It is to evaluate the simulation analysis results from the production schedule forecast, production capacity, equipment utilization rate, personnel utilization rate, and layout cost to judge whether the current assembly meets the production requirements. If not, optimize the aircraft assembly simulation model to obtain satisfactory production. The required aircraft assembly scheme; the simulation analysis sub-module in the system optimization module is to simulate and analyze the aircraft assembly simulation model constructed from the angles of production tact, working hours, personnel planning, and production line bottlenecks, so as to obtain the performance of assembly simulation parameter.

The model library sub-module stores and manages product models, simulation models, and process logic models in the aircraft assembly process. The product model is a model of various parts and related accessories of the hydraulic, electrical, environmental control, and fuel subsystems in the aircraft assembly process; the simulation model is used to describe and express the logical relationship and constraint relationship in the aircraft assembly process, based on the product model, The process model, simulation parameters, etc. are jointly constructed and saved in a form that is convenient for system processing; the process logic model is established based on the assembly hierarchy relationship and the relationship between the process and the process, and the introduction of relevant process information.

The resource library sub-module is based on the existing assembly resource information of the enterprise, classifies general equipment, special equipment, tooling tools and assembly personnel resources, and extracts common To create an information catalog of the resources required for assembly simulation, and to code and classify the resources in the information catalog according to the relevant standards of the enterprise and national or industry standards, and then according to the modeling Specifications create various resource models.

The database sub-module is based on various data of the SQL database management system, and the stored data includes assembly simulation process data, data collected on-site and optimization simulation obtained data, and the stored data is managed and operated to ensure its It can support each module of the system in real time while reducing data redundancy as much as possible.

The knowledge base sub-module stores and manages the knowledge information in the aircraft assembly process, which can be divided into bottom-level assembly event knowledge, middle-level assembly process rules and simulation optimization technology, and top-level assembly strategy and optimization strategy.

The beneficial effects of the present invention are:

The invention not only uses real-time data to drive the on-line simulation of the on-site aircraft assembly process, but also optimizes the assembly scheme that does not meet the on-site assembly requirements, thereby providing the site with an optimal assembly scheme in real time and improving the aircraft assembly efficiency.

Description of drawings

Figure 1 is a structural diagram of the online simulation optimization system for the aircraft assembly process.

Figure 2 is a structural diagram of the online simulation module.

Figure 3 is a flow chart of the online simulation module.

Figure 4 is a structural diagram of the data processing module.

Figure 5 is a structural diagram of the system optimization module.

Figure 6 is a flow chart of the system optimization module.

Figure 7 is an operation diagram of the online simulation optimization system for the aircraft assembly process.

detailed description

The specific embodiment of the following structural drawings will further illustrate the present invention.

As shown in Figure 1-7.

An online simulation optimization system for an aircraft assembly process, as shown in Figure 1, its modules include an online simulation module, a data processing module, a system optimization module, a resource module, a simulation result output module, and system-related infrastructure.

As shown in Figure 2, the online simulation module includes a data-driven sub-module, a real-time collection sub-module, and a real-time display sub-module, wherein the data-driven sub-module obtains all information from the resource module and various assembly resource information collected in real time. Data information is required, and the obtained data information is input into the simulation model to drive the assembly simulation in real time, and the simulation parameters are adjusted online according to the simulation inspection results, so that the simulation of the aircraft assembly process is real-time and effective; in the process of aircraft assembly online simulation, The real-time acquisition sub-module collects assembly process parameters, whole-line assembly parameters, task progress information, personnel layout information, facility location information, scheduling information, and aircraft assembly site data in real time, and extracts the data required for aircraft assembly simulation through data processing. The data information is then input into the data-driven sub-module together with the data information of the resource module in real time; the real-time display sub-module combines with the 3D assembly simulation software to realize real-time display of assembly simulation animation, assembly simulation information, assembly process information, resource management statistics, and simulation evaluation information And various simulation results, so as to facilitate the real-time monitoring of the aircraft assembly process by on-site personnel.

As shown in Figure 3, the specific implementation of the online simulation module is as follows:

Step 1: Use sensors, UWB, RFID and other data acquisition technologies to collect aircraft assembly information and related logistics information in real time, combine with the company's existing MES system and ERP system to export corresponding material demand information and production task progress information, and establish based on real-time information A series of process models;

Step 2: Obtain the model entities pre-built using external software such as CATIA and SolidWorks and the assembly logic model established by combining assembly instructions from each database in the resource module, and then build the layout model of the aircraft assembly workshop based on the aircraft assembly line.

Step 3: Automatically input the real-time data and the constructed simulation model into the 3D simulation software DELMIA and PlantSimulation, and the data drives the simulation model for aircraft assembly simulation;

Step 4: Carry out simulation verification of the simulation results from the aspects of physical interference, assembly logic, process flow, etc., and adjust the simulation parameters corresponding to the aspects where the simulation result evaluation does not meet the actual needs;

Step 5: Use the demonstration interface and output interface of the 3D simulation software to output the simulation results, including assembly simulation standard operation animation, production line balance analysis, facility and personnel utilization rate, layout cost analysis, etc.

As shown in Figure 4, the data processing module includes: a data interaction sub-module, a data management sub-module and a data interface sub-module, wherein the function of the data interaction sub-module is to realize the data interaction transmission of each module in the system, and according to According to the data application requirements of each module, the required data is transmitted to the relevant modules, so as to ensure the real-time connection between the modules; the data management sub-module manages the assembly process data based on the SQL database, the production process execution management system exports the data, and assembles the product Data and resource model data, and compare the data obtained by each module in the system with the historical data in each database, and process various data management contents in real time, so as to manage system data efficiently; the data interface sub-module adopts a system based on XML defines different standard interfaces to ensure the smooth data transmission of each module in the system, thus ensuring the real-time, consistency and validity of data.

As shown in Figure 5, the system optimization module includes: simulation optimization sub-module, simulation evaluation sub-module and simulation analysis sub-module, wherein the simulation optimization sub-module selects a suitable optimization template, optimization strategy, optimization method and Relevant parameters, simulate and optimize the process flow, workshop layout, standard operation, resource management and production capacity, and test the feasibility of the optimization results through the simulation verification of the optimization results, so as to obtain a real and feasible optimization plan for the aircraft assembly site; simulation The evaluation sub-module evaluates the simulation analysis results from the production schedule forecast, production capacity, equipment utilization rate, personnel utilization rate, and layout cost. If it is not satisfied, the aircraft assembly simulation model is optimized; the simulation analysis sub-module evaluates the aircraft assembly The simulation model conducts simulation analysis from the perspectives of production tact, process man-hours, personnel planning, and production line bottlenecks, so as to obtain the performance parameters of assembly simulation.

As shown in Figure 6, the concrete implementation of described system optimization module is as follows:

Step 1: Obtain the aircraft assembly simulation model and simulation results obtained in the online simulation module, and use the assembly knowledge stored in the knowledge base in the resource module to simulate the current assembly simulation model from the perspectives of production tact, process man-hours, personnel planning, and production line bottlenecks analyze;

Step 2: On the basis of the simulation analysis results, evaluate the simulation analysis results from the production schedule forecast, production capacity, equipment utilization rate, personnel utilization rate, and layout cost;

Step 3: Based on the assembly plan, production order, etc., judge whether the current aircraft assembly plan meets the assembly requirements according to the simulation analysis results and simulation evaluation results, and output the assembly plan that meets the assembly requirements and save it in the resource module as historical data;

Step 4: Simulate and optimize the aircraft assembly plan from the process flow, workshop layout, standard operation, resource management and production capacity, wherein the optimization plan selects the optimization template, optimization strategy, optimization method and Relevant parameters, simulate and verify the feasibility of the optimized assembly scheme, and finally output the feasible optimized assembly scheme.

The resource module includes: a model library, a resource library, a database, and a knowledge library. This module is mainly responsible for managing the data resource management of the online simulation optimization system of the aircraft assembly process, and storing the data information required by each module of the system.

The infrastructure includes sensors, RFID, UWB, MES, ERP, and various equipment and systems required by the aircraft assembly site, which provide on-site information data for the online simulation optimization system of the aircraft assembly process, and feed back the simulation analysis results To the aircraft assembly site and management.

As shown in Figure 7, the operation process of this system is as follows: real-time data information is collected through sensors, RFID, UWB and other means, and at the same time information required for simulation is obtained from MES, ERP and other systems, and CATIA V6, SolidWorks, etc. Three-dimensional engineering software builds physical models of personnel, equipment, and products in the assembly line. In addition, three-dimensional simulation software such as DELMIA V6 and PlantSimulation are used to simulate aircraft assembly. Among them, DELMIA V6 is used for aircraft assembly process simulation and interference detection, and PlantSimulation is used for mixed flow production lines. Simulation, and finally input the simulation information of the two into the database server, use the SQL database to read and store the data information in the data server, and use the file server to obtain the information data that can be read by the user and the external application server. Simulation optimization results, and finally output the results to various terminals such as PC terminals, PDAs, tablet computers, large-screen displays, etc.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (8)

1. An aircraft assembly process online simulation optimization system is characterized in that it comprises: An online simulation module, the online simulation module combined with the data processing module obtains the required aircraft assembly model data information from various databases, collects various assembly resource information on site through information collection equipment in real time to jointly drive the assembly model for simulation, and real-time according to the simulation The test results adjust the simulation parameters online, and finally combine with the 3D assembly simulation software to realize the real-time display of the simulation results, thereby realizing the online simulation of the aircraft assembly process; the online simulation module is mainly composed of a real-time acquisition sub-module, a data-driven sub-module and a real-time display sub-module; A data processing module, the data processing module is based on SQL database management assembly process data, production process execution management system export data, assembly product data, resource model data, knowledge data, and defines standard interfaces for different types of data based on Extensible Markup Language, Guarantee the consistency and validity of data, and provide guarantee for real-time data interaction between system modules. The data processing module is mainly composed of data management sub-module, data interaction sub-module and data interface sub-module; A system optimization module, the system optimization module builds the current aircraft assembly simulation model by calling the assembly product data, assembly resource data, and knowledge data in the data processing module, and performs production cycle, process man-hours, personnel planning, and production line bottleneck simulation on the model Analysis, and then evaluate the simulation analysis results from the perspectives of production schedule prediction, production capacity, equipment utilization rate, personnel utilization rate, and layout cost, and judge whether the current model meets the assembly requirements on site. If not, select the model from the knowledge base Corresponding optimization templates, optimization strategies, optimization methods, combined with simulation software to implement simulation optimization from the aspects of process flow, workshop layout, standard operations, resource management and production capacity, so as to obtain the best aircraft assembly plan required for on-site decision-making, system optimization module It is mainly composed of simulation optimization sub-module, simulation analysis sub-module and simulation evaluation sub-module; A resource module, the resource module includes: model library, resource library, database and knowledge base sub-modules, the resource module is mainly responsible for managing the data resource management of the online simulation optimization system of the aircraft assembly process, and storing the data information required by each module of the system; A simulation result output module, the simulation output module is the assembly process animation of the whole line, process simulation animation, workshop layout optimization results, process flow optimization results, layout cost statistics, production line balance statistics and online simulation optimization results of each aircraft assembly Output, and transmit the simulation optimization results to the resource module, production process execution management system and enterprise resource management system in real time through the data processing module; Infrastructure, which provides initial information data collection for the online simulation optimization system of the aircraft assembly process, and at the same time feeds back the information data obtained by the system to the aircraft assembly site and other related systems. The infrastructure includes on-site information collection Devices, wireless positioning equipment, production process execution management systems of manufacturing enterprises, enterprise resource management systems, and equipment and systems required by various aircraft assembly sites. 2. The system according to claim 1, characterized in that the data-driven sub-module in the online simulation module obtains the required data information from the resource module and various assembly resource information collected in real time, and converts the obtained data in real time The data information input simulation model drives the assembly simulation, and at the same time adjusts the simulation parameters online according to the simulation inspection results, so that the simulation of the aircraft assembly process is real-time and effective; the real-time acquisition sub-module in the online simulation module is used in the aircraft assembly In the process of online simulation, real-time collection of assembly process parameters, assembly parameters of the whole line, production capacity information, personnel layout information, workshop layout information, workshop scheduling information, and aircraft assembly site data, and extract the required data for aircraft assembly simulation through data processing. The data information of the resource module is then input to the data-driven sub-module in real time together with the data information of the resource module; the real-time display sub-module in the online simulation module is used to combine the three-dimensional assembly simulation software to realize real-time display of assembly simulation animation, assembly simulation information, Assembly process information, resource management statistics, simulation evaluation information, and various simulation results facilitate on-site personnel to monitor the aircraft assembly process in real time. 3. The system according to claim 1, characterized in that the data interaction sub-module in the data processing module is used to realize the data interaction transmission of each module in the system, and according to the data requirements of each module, the The required data is sent to the relevant modules through the corresponding data transmission path, thereby ensuring the real-time nature of the connection between the modules; the data management sub-module in the data processing module is based on the SQL database management assembly process data, and the production process is exported by the management system. Data, assembly product data, resource model data, knowledge data, and at the same time compare the data obtained by each module in the system with the historical data in each database, and process various data management contents in real time, so as to efficiently manage system data The data interface sub-module in the data processing module uses different standard interfaces defined based on Extensible Markup Language technology to ensure smooth data transmission of each module in the system, thereby ensuring real-time, consistency and validity of data. 4. system according to claim 1, it is characterized in that the emulation optimization sub-module in the described system optimization module selects suitable optimization template, optimization strategy, Optimization method and related parameters, simulate and optimize the process flow, workshop layout, standard operation, resource management and production capacity, and verify the feasibility of the optimization result through the simulation verification of the optimization result, so as to obtain the real and feasible optimization of the aircraft assembly site Scheme; the simulation evaluation sub-module in the system optimization module is to evaluate the simulation analysis results from the production schedule prediction, production capacity, equipment utilization rate, personnel utilization rate, and layout cost, and judge whether the current assembly meets the production requirements. If the aircraft assembly simulation model is satisfied, the aircraft assembly simulation model is optimized, so as to obtain the aircraft assembly scheme that meets the production requirements; the simulation analysis sub-module in the system optimization module is to analyze the aircraft assembly simulation model from the production cycle, working hours, and personnel planning. , The bottleneck angle of the production line is simulated and analyzed to obtain the performance parameters of the assembly simulation. 5. The system according to claim 1, characterized in that said model library sub-module stores and manages product models, simulation models, and process logic models in the aircraft assembly process; The product model is a model of various parts and related accessories of the hydraulic, electrical, environmental control, and fuel subsystems in the aircraft assembly process; the simulation model is used to describe and express the logical relationship and constraint relationship in the aircraft assembly process, based on the product model, The process model, simulation parameters, etc. are jointly constructed and saved in a form that is convenient for system processing; the process logic model is established based on the assembly hierarchy relationship and the relationship between the process and the process, and the introduction of relevant process information. 6. The system according to claim 1, characterized in that the resource library sub-module is based on the existing assembly resource information of the enterprise to classify general equipment, special equipment, tooling tools and assembly personnel resources, and Extract commonly used, key and representative resource information for the assembly and manufacturing process from massive data through effective methods, thereby creating an information catalog of resources required for assembly simulation, and at the same time, according to relevant enterprise standards and national or industry standards. The resources in the information catalog are coded and classified, and then various resource models are created according to the modeling specifications. 7. The system according to claim 1, characterized in that said database sub-module is based on various data of SQL database management system, and its stored data has assembly simulation process data, on-site implementation of the collected data and optimized Simulate the acquired data, and manage and operate the stored data, so as to ensure that it can support each module of the system in real time, while reducing data redundancy as much as possible. 8. The system according to claim 1, characterized in that said knowledge base sub-module stores and manages the knowledge information in the aircraft assembly process, which can be divided into bottom-level assembly event knowledge, middle-level assembly process rules and Simulation optimization techniques and top-level assembly strategies and optimization strategies.