The formation of waviness on the working surfaces bearing parts is associated with fluctuations in size cut layer metal and changes components cutting force. Laplace operators were used to model centerless grinding system based construction transfer function characteristic equation. It was found that depends position hodograph movement vector center part complex plane, which turn geometric para...

The three-dimensional model of rare earth permanent magnet synchronous motor is built based on SolidWorks software, the assembly and production explosion diagram are completed. Finally, shaft imported into Workbench interface ANSYS finite element analysis software for harmonic response modal analysis. results show that resonates under action 659.38hz exciting force, displacement value deformati...

In practice, the elastic lateral-torsional buckling of doubly symmetric I-section steel members is analyzed assuming free warping at supports. However, welded stiffeners, bolted end-plate connections or column base plates maintain elastically opposite flange out-of-plane rotations and thus induce substantial restraints. This paper proposes analytical formulations for evaluation critical bending...

In this paper, an original mathematical model and experimental results for the vibration generator magnetic spring prototype that converts mechanical energy to electrical are proposed. The is developed by a robotic approach based on Denavit–Hartenberg’s notation designed 2-degrees of freedom kinematic chain determination its motion estimation several resonance frequencies useful in many harvest...

this research discusses the process of designing a conceptual model for a new information system, i.e. electronic document management system. the new system is designed for an educational institute (itvhe) whose managers are the research population. the research methodology is based on structured analysis and design methodology (ssadm). in the end, the new system proposed using a data flow diag...

Geosynthetic materials have been demonstrated to be an accurate element in civil engineering, specifically the field of pavement. Regarding implementation these asphalt mixture layers, geosynthetics, such as geotextile and geogrid, used delay crack propagation and/or increase fatigue life. However, use material is based on experience learned or results obtained from testing a reduced scale labo...

forming limit diagram (fld) is an important diagram by which the formability of sheet metals is studied. strain rate is a very effective parameter influencing the fld which is, in turn, influenced by the forming velocity. in this work, forming limit diagram for st14 was investigated both experimentally and numerically. in addition, the effect of forming velocity was studied and the experiments ...

constructing phase diagram and its subsequent quality lines for lean gas condensate reservoirs is always crucial and challenging topic in reservoir fluid studies. due to small amounts of liquid drop-outs in lean gas condensates at reservoir conditions, full experimental tracking of phase diagram and its relevant quality lines is almost impossible for lean gas condensates.on the other hand, eos ...