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根据轴对称球面塞式矢量喷管的结构特点,应用UG NX软件自顶向下装配建模技术建立了该喷管3维实体模型,并运用UG/Motion技术建立该喷管的运动模型。通过对该运动模型的运动仿真模拟了该喷管的真实非矢量和矢量运动状态,验证了运动机构方案的合理性和可行性。初步研究了矢量作动筒不同布置方式对控制规律的影响,确定矢量作动筒的控制规律及行程范围和主要运动构件的运动轨迹,为喷管模型试验件工程设计提供了依据。
According to the structural characteristics of axisymmetric spherical plug vector nozzle, a three-dimensional solid model of the nozzle is established by UG NX software from top to bottom assembly modeling. The motion model of the nozzle is established by UG / Motion technology. The real non-vectorial and vectorial motion of the nozzle was simulated by the motion simulation of the motion model to verify the rationality and feasibility of the motion mechanism scheme. The influence of different arrangement of the vector actuator on the control law was studied. The control law of the actuator, the range of the stroke and the motion trajectory of the main moving parts were determined. This provided the basis for the engineering design of the nozzle model test piece.