Although the finite element (FE) numerical calculation model has been extensively employed in analyzing metal characteristics, very few works use it to analyze features of main process signals during resistance spot welding (RSW) process. Hence, its generality was seriously restricted. In this work, a 2D FE model, which coupled thermal, electrical and mechanical fields, established with reasona...

In this paper, we present a novel process of creating hexahedral meshes for the turbomachinery secondary air system. The meshing process is automated from the geometry import to the mesh setup and requires minimum human interventions. The core of the process is a hexahedral meshing algorithm with a boundary layer mesh automatically created. The hex meshing algorithm combines the pave-sweep, gen...

This paper reveals the latency errors in the manufacturing and assembly of the toroidal drive and integrates these errors in the coordinate systems and the mathematical models of the meshing equations for the conjugate surfaces between the planet wormgear and the sun-worm and between the planet worm-gear and the stationary internal toroidal gear. The paper further develops the tooth profile mod...

This paper presents an original method that allows computation of the optimal route of a motor vessel by minimizing its fuel consumption. The proposed method is based on a new and efficient meshing procedure that is used to define a set of possible routes. A consumption prediction tool has been developed in order to estimate the fuel consumption along a given trajectory. The consumption model i...

Abstract To assess the meshing quality of spiral bevel gears, static characteristics are usually checked under different contact paths to simulate deviation in footprint from design point heel or toe gear flank caused by assembly error two axes. However, effect path on dynamics lubricated conditions has not been reported. In addition, most studies regarding gears disregard condition because com...

numerical analyses have shown that successful flow simulations and the accuracy of solution noticeably depend on the number of nodes used in computational meshing. a suitable meshing should have the capability of adapting with main flow parameters. because the number of total nodes that can be used in numerical simulation is limited, making such grid for complex flows is almost difficult, if it...

Efficient and accurate space-charge computations are essential for the design of high-brightness charged particle sources. Recently a new adaptive meshing strategy based on multigrid was implemented in GPT and the capabilities were demonstrated. This new meshing scheme uses the solution of an intermediate step in the multigrid algorithm itself to define optimal mesh line positions. In this pape...

Currently the focus of research and development effort for new meshing technology is on developing new algorithms for meshing. As a result of this some successful meshing algorithms have emerged, but true automeshing is still elusive. The generation of a meshed model ready for analysis is more involved than merely creating elements. Solid models created in CAD systems often need to be processed...

Abstract. The type and working principle of multi-engine multi-gearbox gearing are introduced. global dynamic modeling method, based on the generalized finite element theory, layered idea whole first then partial proposed, models three operation modes in four engines with two shafts established. effects coupling, rotation speed, configuration power loss response system studied by using model. r...