967 resultados para Micromechanical Modeling - Finite-element Analysis
Distinct Element Analysis on Propagation Characteristics of P-Wave in Rock Pillar with Finite length
Resumo:
以节理岩体等效刚度的概念为基础,讨论了离散元刚性块体模型中节理刚度的选取问题。采用面-面接触模型模拟了纵波在一维岩体中的传播,给出了纵波波形;研究了阻尼比、软弱夹层以及节理间是否可拉对波传播规律的影响。
Resumo:
This paper extends the air-gap element (AGE) to enable the modeling of flat air gaps. AGE is a macroelement originally proposed by Abdel-Razek et al.for modeling annular air gaps in electrical machines. The paper presents the theory of the new macroelement and explains its implementation within a time-stepped finite-element (FE) code. It validates the solution produced by the new macroelement by comparing it with that obtained by using an FE mesh with a discretized air gap. It then applies the model to determine the open-circuit electromotive force of an axial-flux permanent-magnet machine and compares the results with measurements.
An h-p finite element vibration analysis of open conical sandwich panels and conical sandwich frusta
ANALYSIS OF AN INTERFACE STABILIZED FINITE ELEMENT METHOD: THE ADVECTION-DIFFUSION-REACTION EQUATION