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...

This study determines the energy of a fatigue-loaded shaft circular cross-section, in stable equilibrium, deflecting during rotation even absence external loads. The is subjected to completely reversed stresses as well torsion and bending varying with introducing fatigue loading problems. research was conducted order establish equilibrium condition at which can operate without axial vibration p...

We describe a case of traumatic anterior dislocation of the hip in a 14-year-old boy with associated intrapelvic displacement of the femoral head and ipsilateral fractures of the shaft of the femur and greater trochanter. There was a delay in presentation of eight days. At operation the femoral head was reduced into the acetabulum after enlarging the obturator foramen by performing an osteotomy...

DESCRIPTION A 22-year-old man, right-hand dominant, presented with pain in his left hand after a severe crush injury at work using a forklift. Deformity, open fractures, swelling over the dorsum of his hand, and paresthesias to the index and middle digits were evident during initial examination. He was vascularly intact. Radiographs showed markedly comminuted fractures of the index metacarpal n...

We report a rare case of a 33-year-old female patient who sustained bilateral closed femoral shaft fractures as a result of motor vehicle collision. The left femoral shaft fracture was associated with primary complete sciatic nerve palsy. The patient underwent intramedullary nail fixation of both femoral shaft fractures. Throughout the postoperative course, no functional recovery was observed. ...

In this paper, we develop a scheme to enrich the 3-node triangular MITC shell finite element by interpolation cover functions. The MITC method is used for the standard and enriched displacement interpolations. The enriched 3-node shell finite element not only captures higher gradients but also decreases inter-elemental stress jumps. In particular, the enrichment scheme increases the solution ac...

Abstract. To assess the structural health and remaining useful life of wind turbines within farms, site-specific response modal parameters primary structures are required. In this regard, a novel inverse-problem-based methodology is proposed here to identify dynamic quantities drivetrain main shaft, i.e. torsional displacement coupled stiffness. As model-based approach, an inverse problem mathe...

In order to simulate the Stirling engine more easily, the stiffness and damping ratio of the crankshaft bearing are assumed to be steady-state in the research before, but this assumption is contrary to the real condition. Therefore, in this paper, a time-varying stiffness and damping ratio of the crankshaft bearing simulation method has been proposed. Compared with the simulation results of the...