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Showing 1 to 12 of 12 for “"FEA (Finite Element Analysis)"”.
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Modeling and Optimizing IPMC Microgrippers
A FEA (Finite Element Analysis) model was used to determine the change in performance that results from varying the size and shape of IPMC (Ionic Polymer Metal Composite) fingers. Using Comsol Multiphysics and modeFRONTIER, these fingers were modeled and optimized for both force exerted and …
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Design of 3-DOF parallel manipulators for micro-motion applications
… design optimization for structures. Finally, the FEA (Finite Element Analysis) and dynamic analysis have also been performed. There are many practical applications for micro-motion parallel manipulators. The typical applications include micro-machine assembly, biological cell operation, and …
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Modeling, analysis, and design of high-frequency high-density low-profile power transformers
This work presents modeling and analysis techniques for low-profile transformers in power electronics. Based on the modeling and analysis, the design methodologies and design tools are provided. High frequency low-profile transformer 1-D winding loss, core loss and temperature rise models are …
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Modelling to predict the reliability of solder joints
… advanced damage mechanics methods. The use of FEA (Finite Element Analysis) to model creep along with a fatigue law to predict lifetime appears to be the most widely used and validated technique at present. The FEA discretisation of elasticity problems is derived using the principle of minimum …
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Micro Electrostatic Actuation of a Silicon Diaphragm
… these requirements, initial calculations and FEA (finite element analysis) were performed to establish the optimal square diaphragm side length combined with an attainable gap between electrodes to achieve an audible response. Optical and acoustic testing was then performed on 4, 5, and 7 mm …
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Prediction of the off-road rigid-ring model parameters for truck tire and soft soil interactions
… by Volvo Group Trucks Technology. This works features new FEA (Finite Element Analysis) tire and SPH (Smoothed Particle Hydrodynamics) soil interaction modeling techniques. The in-plane and out-of-plane off-road rigid-ring parameters are predicted for an RHD (Regional Haul Drive) truck tire at …
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Response of Continuous Steel I-Girder Bridges Subject to Temperature Variation
… the structure, most notably in substructure elements (piercaps, bearing assemblies, bearing anchor bolts). The potential effects of restrained thermal deformation in steel I-girder bridges have not been clearly demonstrated. Additionally, the method provided in AASHTO specifications for …
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Design and Analysis of the Impact Diffusion Helmet Through a Finite Element Analysis Approach
<p>By applying the finite element approach to the design and analysis of the impact diffusion helmet, many helmet configurations were able to be analyzed. Initially it was important to determine what design variables had an influence on the impact reducing abilities of the helmet design. The helmet …
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Crashworthiness Multi-Material Topology Optimization for Minimum Mass
… is most effectively simulated using dynamic finite element analysis (FEA) techniques due to the geometric and material nonlinearities involved in a crash event. Dynamic simulations do not allow for the calculation of analytical sensitivity derivatives required for conventional gradient-based …
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Application of magnetic resonance elastography to atherosclerosis
… combining steady state shear waves, yielded by finite element analysis, with the 2D Helmholtz inversion algorithm. The accuracy and robustness of this technique was ascertained through models of homogeneous tissue. A computational sensitivity study was conducted through idealised atherosclerotic …
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Explicit Finite Element Modeling of the Human Lumbar Spine
<p>Validated finite element (FE) models of the functional spinal unit (FSU) and lumbar spine are essential in design-phase device development and in assessing the mechanics associated with normal spine function and degenerative disc disease (DDD), as well as the impact of fusion and total disc …