研究了引起轮廓误差的各种因素，以圆弧轮廓为例推导了联动坐标轴动态特性对轮廓误差的影响公式，提出了轮廓误差模型。
The equation of contour error due to feeding axis's dynamics is derived by circular contour motion of the machine, and a model of contour error is proposed.
对五轴联动加工中心主轴系统进行动力学仿真分析，对原主轴系统的轴承支承系统和主轴结构进行了动态优化设计，提出了双排轴承的设计方案。
Based on the dynamic simulation of the spindle system of 5-axis machining center, dynamic optimization design is done for the bearing support system and the structure of the spindle.
NS IS信令技术的引入，解决了目前动态防御系统联动协议存在的通用性问题，保障了控制信息安全、可靠地传输。
The problems of existed linkage protocols are resolved based on NSIS signaling mechanism introduced, and signaling information is transported securely and reliably.
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