2D finite-element analysis of interlaminar flux density distribution at joints of zip-type unicore

2006 ◽  
Vol 304 (2) ◽  
pp. e807-e809 ◽  
Author(s):  
Sezer Erdem ◽  
Naim Derebasi ◽  
Anthony Moses
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Density Distribution ◽  
Flux Density ◽  
Element Analysis ◽  
Flux Density Distribution

Need for CT-based bone density modelling in finite element analysis of a shoulder arthroplasty revealed through a novel method for result analysis

2014 ◽  
Vol 0 (0) ◽  
Author(s):  
Werner Pomwenger ◽  
Karl Entacher ◽  
Herbert Resch ◽  
Peter Schuller-Götzburg
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bone Density ◽  
Boundary Conditions ◽  
Density Distribution ◽  
Shoulder Arthroplasty ◽  
Cumulative Distribution ◽  
Patient Specific ◽  
Element Analysis ◽  
Shoulder Complex

AbstractTreatment of common pathologies of the shoulder complex, such as rheumatoid arthritis and osteoporosis, is usually performed by total shoulder arthroplasty (TSA). Survival of the glenoid component is still a problem in TSA, whereas the humeral component is rarely subject to failure. To set up a finite element analysis (FEA) for simulation of a TSA in order to gain insight into the mechanical behaviour of a glenoid implant, the modelling procedure and the application of boundary conditions are of major importance because the computed result strongly depends upon the accuracy and sense of realism of the model. The goal of this study was to show the influence on glenoid stress distribution of a patient-specific bone density distribution compared with a homogenous bone density distribution for the purpose of generating a valid model in future FEA studies of the shoulder complex. Detailed information on the integration of bone density properties using existing numerical models as well as the applied boundary conditions is provided. A novel approach involving statistical analysis of values derived from an FEA is demonstrated using a cumulative distribution function. The results show well the mechanically superior behaviour of a realistic bone density distribution and therefore emphasise the necessity for patient-specific simulations in biomechanical and medical simulations.

Evaluation of a multi-drum magnetorheological brake via finite element analysis considering number of drums and fluid gap selection in optimization

2019 ◽  
Vol 30 (5) ◽  
pp. 778-787 ◽  
Author(s):  
Huanhuan Qin ◽  
Aiguo Song ◽  
Yiting Mo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Power Consumption ◽  
Flux Density ◽  
Nonuniform Distribution ◽  
Optimal Designs ◽  
Element Analysis ◽  
Drum Brake ◽  
Shear Area ◽  
Two Parameters

Under the same excitation, the multi-drum magnetorheological brake has a nonuniform distribution of flux density over fluid gaps. Each fluid gap has its own flux density and shear area. Therefore, the number of drums and the fluid gap selection in optimization are two important parameters to be considered in a multi-drum brake design. When a fluid gap is selected in optimization, the brake is optimized to reach the maximum required flux density over this gap. This article focuses on evaluating the influence of these two parameters on the performance of the multi-drum brake. According to the number of drums and the fluid gap selection in optimization, the brakes were marked and optimized via finite element analysis. After all optimal designs were obtained, the performance in terms of torque, volume, mass, and power consumption as well as the torque–volume, torque–mass, and torque–power ratios were calculated and compared. Based on the evaluation results, suggestions on the number of drums and the fluid gap selection in optimization are given.

Finite-Element Analysis of Local Flux Density Variation Considering PWM Current Harmonics

2018 ◽  
Vol 54 (3) ◽  
pp. 1-4
Author(s):  
Dong-Gyun Ahn ◽  
Myung-Hwan Yoon ◽  
Jung-Pyo Hong ◽  
Jae-Woo Jung
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Flux Density ◽  
Density Variation ◽  
Element Analysis ◽  
Current Harmonics

F-0904 Finite Element Analysis of Bone Considering Continuous Bone Density Distribution

2001 ◽  
Vol VI.01.1 (0) ◽  
pp. 167-168
Author(s):  
Daisuke TAWARA ◽  
Jiro SAKAMOTO ◽  
Juhachi ODA ◽  
Tadami MATSUMOTO
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bone Density ◽  
Density Distribution ◽  
Element Analysis

scholarly journals Design and Analysis of Surface-Mounted PM Vernier Machines Considering Harmonic Characteristics of Winding MMF

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 897
Author(s):  
Daekyu Jang ◽  
Junghwan Chang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Flux Density ◽  
Design Method ◽  
Element Analysis ◽  
Output Torque ◽  
Optimal Shapes ◽  
The Finite Element Analysis ◽  
Flux Modulation

This paper proposes a design method for the flux modulation poles (FMPs) formed on the stator of surface-mounted permanent magnet vernier machines (SPMVM) considering the winding configurations. In three types of the SPMVM with the different winding configurations, the FMP shapes to maximize the output torque are optimized by employing the analytical equations for the magneto-motive force (MMF) due to the windings, permeance, and flux density in the air-gap. Then, the validity of the optimal shapes for the FMPs is verified by the finite element analysis. It is found that the optimal FMP shapes are designed differently in the three types of the SPMVM and increase the output torque by different ratios according to the winding configurations. In addition, the experimental results for the prototype show that the proposed method can optimally design the FMP shape by analyzing mathematically the effects of the winding configuration and the FMP shape on the output torque of the SPMVM.

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