This research introduces an advanced forging method to produce the door frame of the wind turbine tower. The advantage of the new forging method is the increase of raw material utilization ratio and the energy saving. In the conventional method, the door frame is hot forged with a hydraulic press and machined out lots of material because of the big difference between forging shape and final mac...

Abstract. In this work, a novel multiscale model for softening periodic microstructures is proposed, relying on nonlinear homogenization method combined with cohesive/volumetric finite element model. This strategy able to overcome the mesh sensitivity issues usually experienced by purely volumetric techniques in presence of strain localization. As main ingredient proposed approach, microscopica...

When a coronary artery moves, the wall has to change shape. Thus in each cardiac cycle some regions of the wall contract and some dilate. The stress on the coronary wall during ventricular contractions can be calculated by tracking elements in the arterial wall throughout the cycle and calculating their deformation. The method employs a 3D reconstruction process to generate model input for a st...

The use of a suitable modeling technique for the optimized design magnetic gear is essential to simulate its electromagnetic behavior and predict satisfactory performance. This paper presents optimization an axial flux (AFMG) using two-dimensional (2D) equivalent circuit model (MEC) Multi-objective Genetic Algorithm (MOGA). proposed MEC configured as meshed reluctance network (RN) with permanen...

Frictional shear stress is usually determined by utilizing the coefficient of friction or the constant friction factor models. The present study deals with finite element analysis of double cup extrusion process to determine the relationship between constant friction factor (m) and coefficient of friction (µ), since the metal flow in this process is very sensitive to frictional conditions. Ther...

Slip, especially incipient slip, is a complicated process for soft fingertips; and detection of this slip is important for stable manipulations by both human and robotic fingertips. Experimental research has attempted to explain this phenomenon, but dynamic changes during this process could not be fully delineated. We propose here a dynamic model to investigate the sliding motion of soft finger...