Research On Distributed Simulation Configuration Monitoring System For More Electric Aircraft

Aiming at the problem of adjusting and real-time monitoring of complex associated parameters of electromechanical system,under multi-node and multi-model conditions in the distributed simulation and integration testing of more electric aircraft,this paper designs and implements the aircraft configuration monitoring system,which provides a good human-computer interaction environment for the integration testing of electromechanical system.The paper mainly studies DDS automatic discovery algorithm,the realization of configuration monitoring system,and the design of configuration simulation model of electromechanical system.The specific contents are as follows:Firstly,based on the research of the distributed simulation platform,the overall architecture of the configuration monitoring system is designed,and combined with the real-time requirements of configuration monitoring communication,an improved DDS automatic discovery algorithm based on the single-hash counting bloom filter is proposed.The algorithm effectively reduces network transmission and memory consumption,shortens the query time of DDS automatic publish/subscribe,and provides high real-time performance for configuration monitoring of large amount of data communication.Secondly,the configuration monitoring platform is constructed by using the industrial control software of E-Form ++ visual graphics component library,which provides configuration design and display functions for the aircraft electromechanical system.Based on the research of configuration monitoring data publish/subscribe communication,the bus interface module –HMI DATA DLL dynamic link library is designed,and the data interaction of configuration monitoring is realized by establishing dynamic global data structure and encapsulating related functions.Then,in the established configuration monitoring system,according to the design requirements of the more electric aircraft distributed simulation model,the equipment configuration function model library of aircraft hydraulic,fuel,landing gear,engine,environmental control,anti-icing and other mechanical and electrical systems is developed,and the equipment attribute information is added to make it become a variable driven module.At the same time,the device model in the model base is used to graphically establish the configuration schematic diagram and simple page diagram of each system,and the device model data or dynamic display is associated with the corresponding port variables through editing scripts,expressions and other ways.Finally,the function verification of the configuration monitoring system is carried out,the dynamic display of the configuration schematic diagram and the simple page diagram of each system is monitored in the configuration monitoring system,and the simulation parameters are obtained from the simulation model and the configuration monitoring system for curve comparison analysis.The verification results show that,the configuration monitoring system based on the improved DDS automatic discovery algorithm can meet the real-time demand of large amount of data communication,has a good human-computer interaction interface,can obtain the simulation model data established by different simulation software and distributed on the same and different simulation nodes through the bus interface,and drive the dynamic display of the system configuration schematic diagram and simple page diagram in real time,which improves the efficiency of co-simulation verification of the aircraft electromechanical system.