VIRTUAL MAINTENANCE & VALIDATION SYSTEM SOLUTIONS
DELMIA provides the comprehensive digital manufacturing solutions to the customers, and consider the manufacturing process as the core, provides end-to-end solutions of key manufacturing processes for the user. Its application scope covering the drive train in the automotive industry, assembly, white body; The fuselage assembly of aviation industry, The general assembly process and manufacturing industry, through digital locomotive to conduct a comprehensive digital design and verification for the entire manufacturing process. DELMIA maintain its leading position when it refers to providing customers with technology, and digital products manufacturing collaborative environment. Through the implementation of the scheme, and DELMIA solutions, users will reduce costs, improve the productivity, efficiency, safety and quality.
Aviation virtual maintenance system is based on DELMIA. System uses automation object programming API provided by DELMIA; Automation technology is based on COM (component object model) technology, allowing an application to operate another application; System uses VB and DELMIA embedded VBA (visual basic for applications) for the development of system application layer tools (GUI), using WPF (Windows Presentation Fountation) to develop user navigation interface. Virtual maintenance has a lot of special features such like: high reliability, comprehensive protection, technical comprehensive, rapid response, high environmental complexity and attrition; the existing virtual maintenance systems in China cannot meet the special requirements for aviation virtual maintenance. That’s why we provide a system structure design of virtual maintenance system for aviation equipment. Researches are mainly focused on the human body model localization, and the key techniques such as maintenance level oriented maintenance resource management, maintenance quality oriented maintenance task process management, maintenance time estimation and comprehensive evaluation, and finish the system implementation based on DELMIA software.
Localization refers to the human body model by anthropometry parameter calculation model, get the virtual human body model of the paragraphs size relations with anthropometry data. For DELMIA model of the human body, the first thing to establish is the parameter calculation model of anthropometry, and from the national standard of the anthropometry data, to calculate the size of the virtual human body model paragraphs, then get the file for Chinese people, finally, use the DELMIA software function of the human body modeling, users can load the file for Chinese people, and generate the model of Chinese human body. Using XML technology to provide the description and organization information of virtual maintenance resources, and set up virtual maintenance resource collection model. System maintenance activities are decomposed into simple basic maintenance activities (Therbligs), according to the Therbligs statistical data, a Therbligs - time library is established, accurate time requirement for each element is recorded in the library. In the process of simulation, the actions close to the repair parts, such as walking, climbing up and down the stairs, system will automatic computing activities consumed time according to the DELMIA standard. For other activities, through the secondary development of Therbligs - time library query function, we can get the accurate time needs for every action from the file, determine the actual time of the whole maintenance activities. This solution adopts the analytic hierarchy process and fuzzy comprehensive evaluation method, to build the maintainability comprehensive evaluation model, and solve the comprehensive evaluation problems in virtual maintenance.