Abstract Free vibrations of the orthotropic micro/nanoplate with nonclassical shape are investigated. The considered model is based on nonlocal elasticity theory. developed method uses Ritz as well R-function theory for construction system coordinate functions. linear frequencies obtained a rectangular plate two cutouts opposite sides, while boundary conditions several types, including simply s...

S. Shvartsman, G. DeMeester, M. Morich Philips Medical Systems, Cleveland, Ohio, United States Introduction In this work we present designs for a transverse head insert gradient coil using a discrete coil design method. The targets for the gradient are: 60mT/m gradient strength, 600mT/m/ms slew rate, and 24cm Field-of-View (FoV). The gradient is sized to fit within a whole body gradient coil. I...

This work considers an aeroelastic wingbox model seeded with run-out blade stiffeners along the skins. Topology optimization is conducted within the shell webs of the stiffeners, in order to add cutouts and holes for mass reduction. This optimization is done with a global-local approach in order to moderate the computational cost: aeroelastic loads are computed at the wing-level, but the topolo...

Triangular latt ice Electromagnetic Band-Gap (EBG) St ructure in the ground plane is used in the design of a Triangular Microstrip Patch Antenna (TMPA) Array to improve its bandwidth. The patch elements are equilateral t riangular in shape. The Equilateral Triangular Microstrip Patch Antenna (ETMPA) Array design has four patch elements in 2×2 form with ground plane having circular cutouts formi...

Electron therapy is widely used to treat shallow tumors because of its characteristic sharp dose fall-off beyond a certain range. A customized cutout is typically applied to block radiation to normal tissues. Determining the final monitor unit (MU) for electron treatment requires an output factor for the cutout, which is usually generated by measurement, especially for highly irregular cutouts....

In the framework of refined theory, which takes into account transverse shear deformation, solution problem on steady state vibrations orthotropic doubly curved panel with arbitrary number cutouts configuration taking harmonic in time distributed external load surface is constructed. External boundary shape. Different types conditions are considered contoursof and contours panel. The built basi...