共搜索到315条信息,每页显示10条信息,共32页。用时:0小时0分0秒572毫秒
......
......
perceptron for fault diagnosis of hydraulic pumps is presented, and a framework,ranging from fault signal pick and pre-processing to fault diagnosis, is established. Finally a test was done on an axial piston......
of the hydraulic system was achieved, and the simulation results were analyzed. The simulation results show that augmenting the piston diameter of lift cylinder reduces the velocity and adds to the acceleration of the platform of hydraulic static pile diver in the process of hydraulic static pile driving under adding force. Augmenting the initial displacement of piston of lift cylinder reduces the velocity......
for air-turbine blade thixocasting process are obtained: billet temperature 1 483-1 485 oC, piston velocity 12-15 m/s and die temperature is about 400 oC. Key words: thixocasting; air-turbine blade...: There are three main parameters influencing on this thixocasting process, namely billet temperature, piston velocity and die temperature. The quality of a thixocasting process can be compromised......
Gas-solid reduction kinetic model of MgO-fluxed pelletsQiang-jian Gao,Feng-man Shen,Xin Jiang,Guo Wei,Hai-yan ZhengSchool of Materials and Metallurgy,Northeastern University摘 要:The reduction process of MgO-fluxed pellets was investigated and compared with traditional acidic pellets in this paper.Based on the piston flow concept and experimental data......
size and piston stroke on the two indexes. The results show that the smaller the feed flow rate, the greater the pulp separation efficiency and the ore storage efficiency are. As the particle volume... with the increase of the piston stroke, and the piston stroke has little effect on the slurry separation efficiency. Key words: ore transporting equipment; solid-liquid two-phase flow; simulation......
simulated by the FLUENT dynamic mesh technology during the piston moving at bottom dead centre to 2° crank angle of fuel injection preceding. Vector diagram of flow field, pressure and temperature variation in swirl chamber and cylinder were obtained. The results show that when the piston moves at bottom dead centre, the air in cylinder is compressed into swirl chamber and eddy is formed. Along......
, Central South University, Changsha 410083, China) Abstract: In order to investigate the flow states of filling slurry in squeezed-transport, assuming that the piston of squeezed-transport device was driven by crank-connecting rod mechanism and displacement of the piston was expressed as trigonometric function, the related equations were deduced. Eight expressions of calculating velocity......
Relationship of Ca, B, and AlP in Al-12.6Si alloyYu-Ying Wu,Xiao-Li Cui,Xiang-Fa Liu,Kai LuKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University摘 要:P modification has been widely used in Al-Si piston industry, but trace of Ca element has great influence on the P modification......