The aim of this paper is to present the eddy current losses in solid pole shoes a permanent magnet two-pole electric motor. In presented paper, authors have chosen work with three different analytical models, Carter’s theory, Gibb’s theory and Lawrenson’s each degree accuracy simplifications. results from models all relatively low losses, giving designer valuable arguments utilize shoes, as rot...

As the nondestructive testing method based on industrial computerized tomography (ICT) is widely used in solid rocket motor (SRM) propellant defect detection, demand for a corresponding image processing algorithm increasing. In order to extract better information SRM propellants, we studied edge detection their ICT images. This paper proposes guided filter-based images of propellants with much ...

In order to achieve the thermal structural integrity analysis of solid rocket motor nozzle accurately and efficiently, multifield (flow-thermal-mechanical) coupled numerical investigation was carried out based on mesh-based parallel code interface. The simulation process finite element model algorithm engineering were obtained, while physical simplified appropriately. interface parameters, inte...

To improve the service life of newly designed pneumatic downhole motor, a kind commercially available lithium complex grease was used to help avoid rapid wear-induced failure dynamic seal tools in operation. The investigation on tribological behaviors QBe2 beryllium bronze and 38CrMoAlA steel tribo-pairs motor revealed that under lubrication, instantaneous friction coefficient wear volume becam...

In gliding assays, filaments are pulled by molecular motors that are immobilized on a solid surface. By varying the motor density on the surface, one can control the number N of motors that pull simultaneously on a single filament. Here, such gliding assays are studied theoretically using brownian (or Langevin) dynamics simulations and taking the local force balance between motors and filaments...