Kinematic Modeling and Simulation of Axisymmetric Vector Exhaust Nozzle Translation Control System
To overcome the singularity and inadequate smoothness of the exit section in the original deflection control system of the axisymmetric vector exhaust nozzle,a new translation control scheme is developed.CATIA is used to create a 3D model for the axisymmetric vector exhaust nozzle translation control system,and the motion simulation is conducted in the DMU module,with the sensor activated to track the drive servo's rotation angle data.The spatial kinematic equations are established for numerical calculation,curve fitting,and error analysis,and the 3D model dimensional data and restrictions are substituted into MATLAB.The dynamic control commands were generated with a two-dimensional interpolation model describing the mapping relationship between the nozzle vector deflection angle,the vector azimuth angle,and the rudder rotation angle.The simulation results show that the translation control scheme has no singular positions and a good exit cross-section shape,which improves the nozzle's reliability and sealing while also meeting the demand for accurate control of axisymmetric vector exhaust nozzles.At last,the model prototype confirms the feasibility of the translation control scheme.
axisymmetric vector exhaust nozzletranslation controlmovement simulationkinematics modelingdynamic control commands
国家科技期刊平台
NSTL
万方数据
维普
