三环驱动轴对称矢量喷管喉道逆运动学建模
Inverse Kinematics Modeling for Throat Area of Axial-symmetric Vectoring Exhaust Nozzle Driving by Three Rings

三环驱动推力矢量喷管是一种收-扩式轴对称推力矢量喷管，针对某三环驱动轴对称推力矢量喷管，利用拆杆法和相对转角法建立了轴对称矢量喷管喉道面积调节结构运动学模型，运用CATIA软件完成了轴对称矢量喷管各零件的建模和虚拟装配，并将装配体导入到ADAMS软件中进行仿真，验证了结构设计的合理性和所建模型用于喉道面积控制的有效性。对三环驱动轴对称推力矢量喷管的优化设计及控制器的设计与应用提供了一定的理论基础。
The axial-symmetric vectoring exhaust nozzle driving by three ringsis one of the convergent/divergent type nozzles. In this paper, the inverse kinematics modeling for throat area of axial-symmetric vectoring exhaust nozzle is given by using the relative rotation angle method. The three dimensional model for nozzle was built via CATIA software and its kinematics simulation was carried out via ADAMS, the computer simulation results showed that the mechanic design was reasonable and the kinematics modeling was effective, which provided an important reference for optimizing and controllingthe axial-symmetric vectoring exhaust nozzles driving by three rings