This work explores the aerodynamic and aeroacoustic responses of an airfoil fitted with a harmonically morphing Trailing Edge Flap (TEF). An unsteady parametrization method adapted for harmonic is introduced, then coupled dynamic meshing to drive process. The turbulence characteristics are calculated using hybrid Stress Blended Eddy Simulation (SBES) RANS-LES model. far-field tonal noise predic...

The study employed a two-dimensional (2D) space with multibody dynamics as the physics to simulate dynamic behaviour of intermeshing gears. Both gear teeth and body were principal stress strain well Von Mises system. A pair meshing examined from pinion other for accurate contact stress-strain simulation. validity proposed simulation was verified surface stress, strain, elastic total displacemen...

We develop a fast-running smooth adaptive meshing (SAM) algorithm for dynamic curvilinear mesh generation, which is based on fast solution strategy of the time-dependent Monge-Ampère (MA) equation, det⁡∇ψ(x,t)=G∘ψ(x,t). The novelty our approach new so-called perturbation formulation MA, constructs map ψ via composition sequence near-identity deformations reference mesh. Then, we formulate versi...

The use of Object Oriented Programming (OOP) for automatic mesh generaton for Finite Element Analysis is presented in this paper. Aspects related to the geometry definition, meshing characteristics, triangular elements generation, data structures and implementation aspects are also discussed. Graphical examples generated by C++ code running on a PC are also included to illustrate the concepts a...

The simulation of the store separation using the automatic coupling of dynamic equations with flow aerodynamics is addressed. The precision and cost (calculation time) were considered as comparators. The method used in the present research decreased the calculation cost while limiting the solution error within a specific and tolerable interval. The methods applied to model the aerodynamic force...

Dynamic modelling is an important issue in legged locomotion. However, friction has been neglected in most studied models. The aim of this work is the experimental determination of frictional effects over leg dynamics. For this purpose, previous work on friction modelling in robot manipulators (1), (3), has been followed and similar results have been achieved. However, a new friction component ...

Meshing is a popular technology for feature extraction in handwritten Chinese character recognition. In this paper, we propose a hierarchical overlapped elastic meshing (HOEM), which integrates overlap, fuzzy membership and hierarchical division into elastic meshing. The overlapping zones and the fuzzy memberships of the pixels in each zone are dynamically calculated through mapping the input i...