机械科学与技术2024，Vol.43Issue(4)：729-736,8.DOI:10.13433/j.cnki.1003-8728.20220289
轴对称矢量喷管平移控制系统运动学建模仿真
Kinematic Modeling and Simulation of Axisymmetric Vector Exhaust Nozzle Translation Control System
摘要
Abstract
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.关键词
轴对称矢量喷管/平移控制/运动仿真/运动学建模/动态控制指令Key words
axisymmetric vector exhaust nozzle/translation control/movement simulation/kinematics modeling/dynamic control commands分类
航空航天引用本文复制引用
王新恺,项坤,田晶,赵建策,李文灏,庞博文..轴对称矢量喷管平移控制系统运动学建模仿真[J].机械科学与技术,2024,43(4):729-736,8.基金项目
大学生创新创业训练计划项目(S202110143026) （S202110143026）
