instability criterion meaning in Chinese
不稳定性衡准
不稳定性判据
不稳度准则
Examples
- Study and application of sidewall instability criteria
井壁失稳判断准则及应用分析 - The influence of strain gradient is taken into account in the constitutive relation of coal or rock , the instability criterion of coal pillar is given , the influence factors of rock burst in coal pillar are analyzed
在煤岩体本构关系中考虑应变梯度的影响，得到了煤柱的失稳判据，进而分析了煤柱岩爆的影响因素。 - According to the former mathematical calculation models , the applied software , which uses the forming limit stress diagram as its instability criterion , is developed based on the sheet metal forming finite element code dynaform using visual c + +
根据以上所建立的数学计算模型,基于板成形专用有限元分析软件dynaform的环境,用visualc + +开发了以成形极限应力图作为判据的应用软件。 - From a nonlinear equation with boussinesq similarity on the f plane including friction dissociation and using a new kind of general energy as lyapunov function , we got the nonlinear subcritical symmetric instability criterion which a new kind of symmetric stability criterions . the nonlinear subcritical symmetric instability indicates that the larger amplitude disturb may cause the its instability to increase and then excite the mesoscale rainstorm
非线性亚临界对称不稳定判据是从含摩擦耗散的f平面上boussinesq近似下的非线性方程出发，以一种新的广义能量作为lyapunov函数，导得的一种新的对称稳定性判据，理论指出较大振幅的扰动可能出现非线性亚临界对称不稳定增长，从而激发中尺度暴雨扰动的生成。 - In view of the above reason , this thesis adopts the forming limit stress diagram as the instability criterion due to its independence of strain paths , which is acknowledged at home and abroad in the field of sheet metal forming , and develops the applied software for the special purpose finite element analysis code dynaform in order to provide it with a new instability criterion
本文基于板成形专用有限元分析软件dynaform ,以国内外板料成形领域认同的具有应变路径独立性优点的成形极限应力图为判据进行了应用软件的二次开发,以期为板成形有限元分析软件提供一个新的失稳判据。