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针对轰炸机航空弹药挂弹设备存在的问题,提出了改进方案;介绍了直流电机、PWM驱动原理;设计了一种直流电机PWM控制器,并在轰炸机快速挂弹系统中实现,满足了主战轰炸机航空弹药快速保障的要求. 相似文献
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基于动力有限元方法,确定炸药、空气和靶板的本构模型和状态方程参数,建立了爆炸波对四边固支靶板冲击的数值模拟模型,得到了靶板的凹陷损伤变形形式.爆炸波超压、靶板塑性变形模式以及靶板中心挠度的数值模拟结果与理论计算及相关试验结果吻合较好,验证了模拟方法和模型参数的准确性. 相似文献
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In order to realize the real-time and precise test for a weapon system of a certain type of fighter, a signal classification method according to attributes is proposed, common input channels for multiple signals are configured optimally, and a test adapter and an adaptive signal conditioning module is designed. The hardware of conditioning module can be configured flexibly and the programmable test range can be adjusted owing to programmable multiplexer. An FPGA adaptive filter is designed by the calculated filter coefficient vectors with LMS method to solve the problem of parallel test of fighter weapon system in electromagnetic interference environment. The adaptive signal conditioning technology is characterized by high efficiency, precision and integration. Its application makes the test system successful to conduct real-time and parallel test for a weapon system, which is developed based on VXI bus and virtual-instrument technology. 相似文献
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