This study aims to determine the effect of clearance and loading regarding displacement, distribution contact loads stiffness spherical roller bearings at rest. The displacement formulation inner ring bearing was developed by defining angle inclination element axis shaft. comparison between exact calculations using Matlab program numerical modeling with MSC Marc for has an error value less than...

The difference between the maximum and minimum deviation of actual contour relative to ideal circle is roundness caused by uneven temperature wear ring during production operation, which will lead abnormal force. In this paper, a rigid flexible coupling dynamic model cylindrical roller bearing considering inner established study characteristics bearing. And stress contact force raceway or cage ...

Recent interest in natural refrigerants has created a new impetus for studies of CO2 as a working fluid in vapour compression systems for refrigeration and air conditioning. Two major drawbacks to its use are the very high pressure differences required across the compressor and the large efficiency losses associated with the throttling process. To overcome the throttle losses, a number of propo...

The number of distinct biomolecules that can be visualized within individual cells and tissue sections via fluorescence microscopy is limited by the spectral overlap of the fluorescent dye molecules that are coupled permanently to their targets. This issue prohibits characterization of important functional relationships between different molecular pathway components in cells. Yet, recent improv...

Abstract In this study, the pin bearing behaviour of a 3D printed composite material with Kevlar reinforcement was analysed. Three different experimental tests were designed to determine effects fibre orientation, layer design, and distribution along specimen thickness. Furthermore, pin-bearing strength stiffness analysed using statistical methods as analysis variance. The results indicate sign...

The bearing capacity of screw cast in situ displacement piles is mostly unexplored. There also insufficient research on silty soils. Therefore, five cone penetration tests (CPT) and one piezocone test (CPTu) using direct methods were utilised to determine the load-bearing four Estonia. In addition CPT sounding data, static-dynamic (SDT) results used analyse load-beating piles. Both deterministi...

Time-dependent creep analysis is crucial for the performance and reliability of piezoactuators used for high-precision positioning and load-bearing applications. In this study history of stresses, deformations and electric potential of hollow rotating cylinders made of functionally graded piezoelectric material (FGPM), e.g., PZT_7A have been investigated using Mendelson’s method of successive e...

Direct displacement-based design is a nonlinear static procedure and has to check the suitability of method against different types ground motions namely far field, near field forward directivity fling step. The applied for buildings supported on fixed base hysteretic isolation bearings. Seismic isolators are provided between foundation superstructure minimize influence motion superstructure. f...