Distributed Collaborative Modeling And Simulation Technology Of Digital Performance Prototype For Aerospace Products

It has become a hot research topic in the industry and academia of the complex aerospace products performance prototype technology that study challenging and difficult. It’s usually consists of hundreds of companies for large complex aerospace product design that involved in feasibility studies, design, manufacture, testing, use, protection, management, development cycle and use protection period for decades, converge across many disciplines design, manufacturing, testing and management fields. At present, it’s not yet mature of quantitative description and modeling theory for the performance prototype, and facing the ground simulate experimental conditions hard, high target requirements, comprehensive integration difficulties, multi class target integrated guidance and control design optimization technology and a series of key techniques to be solved for the hypersonic vehicle arms of the large complex products.It’s a multi-stage design and whole lifecycle process for development of performance prototype, including the complete digital information models within the product lifecycle components and devices. And in the current environmental conditions, different subsystem of design modeling, simulation and optimization using different tools have different characteristics, the coordination between different systems have different dependencies, different information models need consistent expression in semantic level. So, in this paper, focuses on the distributed collaborative modeling of complex spacecraft performance prototype, collaborative simulation, co-simulation model library construction methods and collaborative simulation optimization and application of cloud computing comprehensive integration of modern information technology to achieve performance prototype distributed Collaborative modeling and Simulation unified management. The main comments and innovative works are shown as follows:(1) For the problem of quantitative description and modeling theory is not yet mature of the performance prototype, systematically proposed UMSLO(Unified-Modeling-SimulationLibrary-Optimization) comprehensive integration conceptual model, and a new design process and collaborative modeling method for four prototype performance based on the UMSLO model is proposed. Firstly, based on the performance of the prototype collaborative design and simulation business needs analysis, combining ontology modeling method proposed collaborative performance prototype conceptual modeling method based on ontology meta model. Secondly, according to the performance of the prototype ontology-based modeling methods studied, given the performance of the prototype collaborative conceptual modeling case, and use tools to build a performance prototype Protégé ontology model library. Finally, based on analysis of the performance of prototype collaborative modeling process, propose a modeling process based on the performance of prototype collaborative modeling dynamic object Petri Nets. It gives the formal definition of performance prototype collaborative modeling and collaborative workflow model concept modeling, functional modeling, simulation modeling and optimization modeling meter unit object Petri net metamodel. Dynamic description Meta model properties prototype collaborative modeling and simulation process input and output interfaces. The performance of prototype ontology meta model library can better solved the lack of multidisciplinary product model output and the problem of redundant information, you can explicitly express domain knowledge and promote the concept of semantic consistent between different areas, realized the M terminal for UMSLO model.(2) For the unified and integrated multi-domain meta-model conversion problems of simulation system for prototype performance, a new digital performance digital Mock-Up distributed collaborative simulation model based on HLA(High Level Architecture) is proposed based on the performance digital Mock-Up collaborative modeling method. Firstly, is analyzing the mapping method of domain ontology Meta model and federated model. Then, conversion and integration of different subject areas ontology Meta in building a model, the conversion method for ontology Meta model and HLA object model is proposed. Thirdly, the conversion of meta ontology model and the object model of HLA method is realized based on the integration method of meta ontology model, through the ontology meta model integration and conversion cases analysis each subject domain ontology concept matching process. Finally, using the six degrees of freedom meta model as application examples of complex systems for performance digital Mock-Up model object, performance digital Mock-Up of Hypersonic Vehicle(HV-PDMU) modeling, the HV-PDMU model and the overall structure of the HV-PDMU federal simulation process is proposed, and HLA simulation model based on Petri Network is designed. The research model reduces the redundant data transmission, HLA simulation model to improve the model speed, has solved the HLA simulation systems unified and integrated multi-domain meta model conversion, realized the S terminal for UMSLO model.(3) In order to achieve effective accumulation and reuse of simulation models in various disciplines, the use of databases and meta-model sharing technology to build libraries of reusable simulation model to analyze the performance of the prototype level framework of collaborative simulation model library is divided into top level system simulation model, the master model areas and meta-model, and gives the performance of the prototype collaborative simulation lifecycle data sharing technology, realized the L terminal for UMSLO model.(4)For the multidisciplinary coupling and multi-objective optimization problem of collaborative modeling and simulation in the process for performance prototype, a new performance digital Mock-Up multidisciplinary simulation and optimization models is proposed. Firstly, has built a supersonic aircraft data analysis the relationship between different disciplines and the coupling relationship between the expression models based on the analysis of complex product multidisciplinary collaborative design and optimization method of modeling. Then, the multi-objective Particle Swarm Optimization-Genetic Algorithm(MOPSOGA) hybrid algorithm is proposed based on multi-objective optimization genetic algorithm and particle swarm optimization algorithm, application of MOPSOGA algorithm on the performance of the prototype pneumatic propulsion integration, aerodynamic contour integration and the HLA simulation of the system reliability allocation of multi objective optimization design based on the performance digital Mock-Up model and the HV-PDMU model. The proposed algorithm can obtain the Pareto optimal solutions in the design of candidate solutions, it is preferable to achieve a complex product of multi-disciplinary meta-model performance objective optimization and program evaluation, Realized the O terminals for UMSLO models.(5) For the lifecycle collaborative modeling and simulation process management system poor integration of performance prototype, a new collaborative modeling and simulation performance prototype cloud integration platform prototype system is build. Firstly, based on the overall analysis of the system design, the modeling task management requirements, modeling process management functional requirements, functional requirements management model design, product ontology management functional requirements, co-simulation management functional requirements and collaborative modeling system platform management functional requirements are analyzed and designed. Secondly, the prototype system conceptual model and physical model of system database are built. Constructed platform solves the performance of the prototype lifecycle unified modeling and simulation as well as different people, different tools, different algorithms, coupled modeling under different description language, co-simulation problem, realized UMSLO the U terminal model.The above proposed methods are all demonstrated to be valid and feasible through the winged-cone concept hypersonic aircraft.