| Because of its unique flight characteristics,helicopters can be widely used in many fields of industry and agriculture in civil use in low airspace.In military use,the reform and construction of the army,navy and air force has increased the demand for domestic helicopters.The development of helicopters will inevitably drive the demand of simulators,most of which are expensive and complex,and have high maintenance and use costs.In view of this,this paper takes the helicopter simulator as the research object,and designs and implements a general helicopter simulation system for daily flight training and teaching.In this paper,firstly,the function and modeling technology of 3D modeling software Creator are understood,and the 3D modeling of Linzhi Airport terrain and helicopter model in the visual system is completed.Then,the design and development of cockpit basic instruments are completed,which are imported into the visual system to realize the transmission of flight data.Then,the force and moment of helicopter components are analyzed,the nonlinear dynamic model of helicopter is obtained,and the Simulink simulation block diagram is built.At last,the design goal and structure of the system are made clear,the program is developed by using MFC-based multithreading technology,and the data communication interface is designed.After the system is built,the flight simulation test is carried out.The results show that the system can simulate the actual flight process of helicopters,and has good fidelity,and can achieve better teaching and training effects. |