准静态近似 meaning in English
quasistatic approximation
Examples
- In this thesis , studies are made on the problem of time - harmonic electromagnetic fields excited by an arbitrary current dipole in spherical conductor . the problem is presented in eddy - current nondestructive test and geophysical prospecting . under the condition of magnetic quasi - static state , the boundary - value problem about modified magnetic vector potential is solved and the analytical solution is obtained
本论文针对涡流无损检测和地球物理勘探领域用到的球导体中时谐电流元的电磁问题做了研究，在磁准静态近似下，求解了修正磁矢量位的边值问题，获得了问题的解析解，并利用通用有限元分析软件做了数值验证。 - Abstract : a previously proposed approximate quasi - static theoretical method is employed herein to examine the deformation and perforation of a simply - supported circular plate struck by a flat - faced projectile at normal incidence . based on the principle of virtual work , static load - displacement relationships are first obtained and then used to predict the energy - absorbing capacity of the plate subjected to relatively low speed impact . it is shown that good agreement is obtained between the theoretical predictions and the available experimental data , provided that adiabatic shear plugging failure does not occur , but the influence of strain rate sensitivity is taken into account
文摘:采用准静态近似理论方法分析简支圆板在平头弹丸正撞下的变形和穿透.首先基于虚功原理得到了静态荷载位移关系,并将其用于预测低速冲击下圆板的能量吸收能力.当考虑了材料的应变率敏感性,并且不发生绝热剪切冲塞破坏的前提下,理论预测和实验结果吻合良好 - Some basic methods about the slot ' s electromagnetic scattering are studied and analyzed in this thesis . these methods include the quasi - static approximation formulation applied in 2 - d infinite long slot , the 2 - d slot scattering analysis based on integral equation and the method of moments , a physical basis formulation for a finite - length trough , and a quasi - static approximation combined with travel wave ' s scattering calculated scattering from a 3 - d crack . through many examples , these methods " characteristics are discussed
本文通过不同的模型研究分析了缝隙电磁散射的多种基本算法，包括二维无限长窄缝的准静态公式、基于积分方程和矩量法的二维缝隙的散射分析、有限长直缝散射计算的物理基公式及准静态近似结合行波散射计算三维缝隙的散射等，并通过算例，讨论了这些算法的特点。