Commissioning of Unit 2 coordinate control system ( CCS ) in Zhanjiang Power Plant 湛江发电厂2号机协调控制系统的投运
This paper introduces formulations of hexahedral 8 nodes and triangle prism unit under cartesian coordinate system, and presents 3 kinds of formula to determine the surface heat dissipation coefficient of radiant duct. 本文给出了直角坐标系下6面体8节点等参元和3棱柱单元的计算格式以及3种确定径向通风沟表面散热系数公式。
First, periodical boundary condition is used to make space domain in a photonic crystal unit cell, and for non-orthogonal crystal, non-orthogonal coordinate system is adopted. 本文研究的重点是减少计算时间,首先应用周期性边界条件,将计算区域始终限制在一个光子晶体元胞内,对于非正交结构的光子晶体,采用了非正交直线坐标系。
Mindlin plate unit is applied to all three plates, local coordinate system with middle surface of each plate as coordinate plane is used to build finite element model, and constant complex number model is applied for interlayer material's viscid elasticity. 对三层板均采用Mindlin板单元,以各层的中面为坐标平面建立局部坐标系来建立有限元模型,芯层材料的粘弹性采用常复数模型。
This paper introduces design features and commissioning experience of analog control system in reformation project of DCS system of Unit 6 in Xingtai Power Plant, and describes the functions of coordinate control system and subsystems. 文章介绍了邢台发电厂6机组分散控制系统改造中模拟量控制系统的设计与投运,对协调控制系统及其子控制系统的功能以及应用的控制新技术做了描述。