EAST低温系统是EAST的核心子系统之一,负责为EAST冷却部件进入超导态。在实验过程中,低温系统需要和其他子系统进行数据交换,不同的子系统之间由于采用了不同的硬件设备和软件,导致了接口众多,开放性、可访问性和安全性均没有很好的保...EAST低温系统是EAST的核心子系统之一,负责为EAST冷却部件进入超导态。在实验过程中,低温系统需要和其他子系统进行数据交换,不同的子系统之间由于采用了不同的硬件设备和软件,导致了接口众多,开放性、可访问性和安全性均没有很好的保障。本文将从控制系统结构,OPC(OLE for Process Control)等方面进行阐述如何提高EAST低温控制系统的开放性和访问性,实现各个系统间的数据交换。展开更多
Based on the loading conditions of engine, applying difference method to solve the hydrodynamic lubrication equation of piston skirt movement, the force acting on piston skirt and the moment on wrist pin were obtained...Based on the loading conditions of engine, applying difference method to solve the hydrodynamic lubrication equation of piston skirt movement, the force acting on piston skirt and the moment on wrist pin were obtained. A computer program for simulating the piston second order motion was conducted to calculate the lateral motion of the upper part and the bottom part of piston skirts of the engine of automotive model CA1091. From the simulated result, the maximal impacting phase and the maximal impacting region of the piston were obtained. The result can be used for designing engine, diagnosing the noise of piston knocking cylinder wall and explaining many practical fault phenomena in theory.展开更多
文摘EAST低温系统是EAST的核心子系统之一,负责为EAST冷却部件进入超导态。在实验过程中,低温系统需要和其他子系统进行数据交换,不同的子系统之间由于采用了不同的硬件设备和软件,导致了接口众多,开放性、可访问性和安全性均没有很好的保障。本文将从控制系统结构,OPC(OLE for Process Control)等方面进行阐述如何提高EAST低温控制系统的开放性和访问性,实现各个系统间的数据交换。
文摘Based on the loading conditions of engine, applying difference method to solve the hydrodynamic lubrication equation of piston skirt movement, the force acting on piston skirt and the moment on wrist pin were obtained. A computer program for simulating the piston second order motion was conducted to calculate the lateral motion of the upper part and the bottom part of piston skirts of the engine of automotive model CA1091. From the simulated result, the maximal impacting phase and the maximal impacting region of the piston were obtained. The result can be used for designing engine, diagnosing the noise of piston knocking cylinder wall and explaining many practical fault phenomena in theory.
