Application of Vector Closing Equation to Analysis of Grab Bucket Dead Weight Distribution 矢量封闭方程在抓斗自重分布分析中的应用
From fluid flow momentum theory the basic equation of flow dynamic forces in the spool closing process is derived, and the spool dynamic equation of the two& way cartridge valve is established. 本文根据流体动量理论导出了阀芯关闭过程中液动力的关系式,在此基础上建立了二通插装阀阀芯关闭运动方程。
The nuclear material accounting is based on the Material Balance Area ( MBA) at a closing Material Balance Period ( MBP), which is calculated by the facility operator using the material balance equation ( the MUF equation). 核材料衡算是以一个核材料平衡区为衡算单位,以一个闭合的核材料平衡期为限,按核材料平衡方程式(MUF方程式)来计算。
Special crack element was used in the proposed model to simulate the opening and closing process of crack. Such a dynamic FEM equation involving contact problem was solved by Newmark method, and the proposed gas distribution function was also considered. 模型中用特殊的裂缝单元模拟裂缝张开和闭合,用Newmark法求解反映接触问题的动态有限元方程,并采用与时间相关的爆生气体压力分布模型,模拟爆生气体驱动下裂缝扩展过程。
The vector closing equation is of great importance in the analysis of the multiple member mechanism. 矢量封闭方程是多杆件机构分析的有力工具。