期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
一种Q/V频段天线馈源组件差模耦合器加工工艺方法 被引量:1
1
作者 王艳枝 胡赫 《空间电子技术》 2021年第6期17-23,共7页
Q/V频段天线馈源组件差模耦合器结构较复杂,呈现集成化、小型化、多端口特点,对加工及装配精度要求较高,受现有工艺设备精度限制问题,加工难度较大。为利用现有工艺设备实现该产品封闭结构、多级小间隙配合、四通道精密对接加工及装配,... Q/V频段天线馈源组件差模耦合器结构较复杂,呈现集成化、小型化、多端口特点,对加工及装配精度要求较高,受现有工艺设备精度限制问题,加工难度较大。为利用现有工艺设备实现该产品封闭结构、多级小间隙配合、四通道精密对接加工及装配,介绍了一种Q/V频段天线馈源组件差模耦合器加工工艺方法。该方法基于工艺尺寸链理论,通过创新优化工艺尺寸链设计、修配法装配、交互式工艺流程设计等措施相结合,适当降低加工难度,利用现有设备可达精度进行加工,达到设计要求。该方法为类似具有多级装配且精度要求较高的产品工艺设计及结构设计提供新的思路。 展开更多
关键词 Q/V频段 馈源组件 差模耦合器 工艺尺寸链 工艺设备
下载PDF
Multi-motor Drive System Based on Adjacent Coupling Error Strategy
2
作者 李艳 何勇 李慧敏 《Journal of Donghua University(English Edition)》 EI CAS 2009年第4期344-349,共6页
A new control strategy named adjacent coupling error strategy is proposed to multi-motor drive system. The adjacent coupling error control scheme is developed considering the tracking speed error in one motor and the ... A new control strategy named adjacent coupling error strategy is proposed to multi-motor drive system. The adjacent coupling error control scheme is developed considering the tracking speed error in one motor and the synchronous error among adjacent motors simultaneously. In the strategy, due to non-linear effects of the two mentioned errors to the motion control of motor i, an adaptive fuzzy logic controller is designed to decide the control variable of the motor drive system. The multi-motor drive system is modeled and simulated by SIMULINK. The simulated researches show that the proposed strategy improves the synchronization, stabilization, and convergence of the multi-motor system. 展开更多
关键词 multi-motor synchronous control adjacent coupling error strategy adaptive fuzzy contrvller biclosed loop control system
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部