某型无人机系统涡轮阻尼器的性能仿真

涡轮阻尼器作为制动装置应用于某型无人机气液压发射系统和拦阻网回收系统.建立了阻尼器的阻尼力矩数学模型,并进行仿真计算和数值分析.结果表明:转子半径、流体介质密度对阻尼力矩的影响起主导作用;定子半径、转子叶片与定子叶片轴向间隙、流体介质动力黏度对阻尼力矩的影响相对较小.采用具有不同结构尺寸和不同流体介质的阻尼器进行阻尼力矩的测量试验,研究结果表明仿真结果与试验结果表现出较好的一致性,证明了阻尼力矩数学模型的正确性,为涡轮阻尼器的工程研制提供可靠的理论依据. 

Capability simulation of the turbine damper of certain UAV system

Turbine damper was used as a brake equipment for the pneumatic/hydraulic launching system and arresting net recovery system of certain unmanned aerial vehicle(UAV).The mathematics model of damp moment about turbine damper was built and simulated.The results of numerical analysis indicate that rotor radius and liquid medium density are key parameters affecting damp moment.The influences of some parameters such as stator radius,axes direction clearance between rotor vane and stator vane,kinematic viscosity modulus of liquid medium,on the damp moment are lesser reversely.Many turbine dampers with diversiform structure sizes and different liquid medium were used for the measure test of damp moment.The research results indicate that the simulations are in good accordance with the experiments,proving the validity of the mathematics model of damp moment.Therefore,a dependable theoretic basis is offered for the engineering development of turbine damper by the research.