Connecting Conditions and Constraint Equations in Applied Science

IntroductionIn applied science , e . g . machinery , vibrationmechanics , fluid mechanics , and management science , toobtain the opti mal solution of some issues , the objectfunction is usually shown since the abstract mathematicsmodel is set , and all kinds of boundary conditions andconnecting conditions or constraint conditions are putforward . Above these conditions are shown with the shapesof constraint equations . For example ,in machinery opti maldesign, to get the opti mal solution of …     

长丝整经机的直接卷绕和控制系统

本文先对经纱恒线速度卷绕进行分析,然后以国外进口的长丝整经机为研究参考对象,并结合国内的实际情况,对长丝整经机的控制系统进行设计研究。     

关于模态综合法模态函数选择和计算精度的研究

为了提高模态综合法的综合效率和计算精度,对系统分部的划分、模态函数的选择和系统自由度数的确定作了研究.并重点放在选用幂级数作为分部形态函数时对系统计算精度的影响方面.     

纱线混纺比微机控制系统研究

纱线混纺比的微机控制系统是在头道并条机上,采用单片微机控制混入纱条输送辊的转速,以此达到工艺设定的混纺比要求.此种方式操作简单,品种变化方便,为混纺纱线和织物新产品的开发研究,提供有利条件.     

Application of Power Series on Vibration Analyses

Power series is extensively used for engineeringstudies. To raise the synthesis efficiency andcomputation accuracy of vibration mode synthesis(MS), the choosing of power series as the componentmode-function is studied in this paper,and emphasisis laid on its effect upon the system computation     

电子式多臂纹板冲孔机的研究

介绍了用于织机多臂纹板和剑料选色纹板的电子式纹板冲孔机的原理以及我们在国产化研究中遇到的硬件、软件、电磁铁和操纵部分的设计问题．