先进瞄准吊舱动态特性仿真与测试的工程化方法

Engineering Method of Advanced Targeting Pods Dynamic Simulation and Test

瞄准吊舱的伺服单元和结构单元成强耦合关系,为了使系统获得良好的伺服特性,需要对系统谐振进行抑制;利用电机扫频获得系统重要谐振点,给出基于质量特性与传力路径方式双重模式并行的瞄准吊舱分析模型简化方法,并根据吊舱结构特征详细设计和实施了模态测试方案;最后提出一种基于频率区间逼近与振型视觉匹配双重评价指标的模型快速确认方法,它使仿真结果和测试结果能迅速直接进行闭环验证;整个仿真-测试链路方便设计人员掌握,具有很强的工程实用性。

Servo unit and structural unit of stabilized sighting pods had a strong coupling relationship. In order to make the system obtain good servo characteristics,system resonance had to be suppressed. We got system resonance with generate frequency-sweep by a motor. And we given stabilized sighting pod analysis model based on the dual parallel mode simplified method of quality characteristics and load transfer path,and detailed designed and implemented modal testing plan. Finally,a double evaluation method based on the frequency range approximation and vibration visual match cam to quickly identify models was peoposed. The results between simulation and test had direct, quick closed-loop verification. And simulation-test link is that traditional designer could easy to learn, which meets strong engineering practicality.