Finite Element Analysis (FEA) is known to be a highly reliable tool for structural analysis, but this is usually conducted offline. Online use of FEA is usually out of the question because it is highly demanding in terms of computing time. We show in this report how the Cartesian stiffness matrix of robotic structures of a certain class can be computed online with FEA support. The procedure is ...

The failure pressure of pipe with wall-thinning was investigated by using three-dimensional elastic-plastic finite element analyses (FEA). With careful modeling of the pipe and flaw geometry in addition to a proper stress-strain relation of the material, FEA could estimate the precise burst pressure obtained by the tests. FEA was conducted by assuming three kinds of materials: line pipe steel, ...

PURPOSE The aim of this study was to evaluate the transfer of different occlusal forces in various skeletal malocclusions using finite element analysis (FEA). METHODS Three representative human cone-beam computed tomography (CBCT) images of three skeletal malocclusions were obtained from the Department of Orthodontics, Yonsei University Dental Hospital, Seoul, South Korea. The CBCT scans were...

In order to compensate the low performance of ferrite magnet, surface permanent magnet mounted (SPM) motor has considerably thicker magnet than air-gap length, thus end effect, which is determined by the ratio between magnetic air-gap and stack length, is negligible. As a result, 2-D finite element analysis (FEA), which is not possible to consider end effect, is generally used to ensure analysi...

FEA contact modeling with severe interfacial friction is often associated with computational challenges to obtain converged solutions. The challenges may increase for problems with significant non-linear deformation (e.g., hyperelastic materials) and more sophisticated laws of coefficients of frictions (COF). Thus, objectives of the present paper are to propose an efficient FEA-based approach t...

Light-weighting of high speed railway equipments has become a major trend, which leads the upgrades of equipments. A new C-shaped bracket has been produced to connect the driving gearbox with the bogie. This paper built a three-dimensions model of a C-shaped bracket, got the maximum and distribution of the stress and deformation under two different working conditions form finite element analysi...

The focus of the research presented in this article has been an integration of a CADsystem and a FEA pre-processor to automatically develop a complete FEA-models in order to make simulation based design possible. The article presents a prototype system that was developed to automate the simulation of the behavior of ski-racks mounted on cars during collision. This type of simulations requires m...

This report describes a methodology to classify layout geometry as a beam structural element where geometric recognition fails due to shape complexity. FEA-based results are used to detect various structural elements in the layout. FEA-based simulation is applied to parts of the MEMS device layout to identify the relative stiffness of various elements in the layout. These stiffness maps provide...