The applicability of the meshing framework ViennaMesh for finite element simulations is investigated. Meshing tools are highly diverse, meaning that each software package offers specific properties, such as the conforming Delaunay property. The feasibility of these properties tends to be domain specific, thus restricting the general application of ameshing tool. For research purposes, it is des...

Power trains are an important component of the tidal current energy conversion systems; however, variable drive-torque and unbalanced moments produced by flow shear turbulence cause power to vibrate. When scale turbine increases, vibration problem becomes prominent. The dynamic characteristics complex. In this study, train a 650 kW horizontal-axis was studied. adopted low-speed-ratio semi-direc...

Considerable progress has been made on automatic hexahedral mesh generation in recent years. Several automatic meshing algorithms have proven to be very reliable on certain classes of geometry. While it is always worth pursuing general algorithms viable on more general geometry, a combination of the well-established algorithms is ready to take on classes of complicated geometry. By partitioning...

The thermal characteristic of a new out-rotor fault-tolerant permanent-magnet (FTPM) motor is modeled and predicted in this paper. Flow characteristics and thermal characteristics of this FTPM motor are calculated by using computational fluid dynamics method. The key is that an equivalent model is developed to replace the real motor, offering the merits of simplified meshing progress and conven...

Fuel assemblies with wire spacer are widely used in Generation IV liquid nuclear reactors. With the rapid development of computational power, Computational Fluid Dynamic (CFD) method is becoming an effective tool to investigate detailed three-dimensional thermal hydraulic characteristics wire-wrapped fuel assemblies. Due complexity geometry, most published researches performed large number tetr...

Sliding friction is an important excitation for the vibration and noise of a transmission system. However, in cases where helix angle helical gear large, dynamic characteristics system electric vehicle caused by have not been explored explicitly. In this study, gears 30.5 degrees. A mesh stiffness calculation algorithm derived. model Motor Two-Stage at constant speed established. bench test car...

Abstract. The tooth surface friction effects and the resulting contact temperature are important factors for dynamic characteristics of a gear-rotor system in compressed air energy storage (CAES). Therefore, 3∘ freedom finite-element model is set up which lubrication state gear pair, friction, surface, backlash unbalanced excitation considered. coefficient calculated according to variation stat...

The nite element method is being used today to model component assemblies in a wide variety of application areas, including structural mechanics, uid simulations, and others. Generating hexahedral meshes for these assemblies usually requires the use of geometry decomposition, with di erent meshing algorithms applied to di erent regions. While the primary motivation for this approach remains the...