在使用通用有限元软件(如Abaqus,lsdyna,ansys)进行隐式分析计算(或静力分析,或动力学初始状态求解)时,对于复杂装配体模型,大家或多或少会遇到以下警告信息: “***WARING:THE SYSTEM MATRIX HAS *NEGTIVE EIGENVALUES.”即警告:系统矩阵出现了负特征值。往往产生这样的警告后,计算便很难收敛了。但也有例外,在接触...
我的 the system matrix has 31 negative eigenvalues.怎么解决 我来答 1个回答 #热议# 公司那些设施可以提高员工幸福感?ji...2@163.com 2017-04-18 知道答主 回答量:4 采纳率:0% 帮助的人:2236 我也去答题访问个人页 展开全部 这就是英语 已赞过 已踩过< 你对这个回答的评价是? 评论 ...
system matrix 系数矩阵; 实用场景例句 全部 An equivalent simplification method was proposed for analyzing low - machine power systems. 这种等值简化方法可以有效降低系统矩阵的维数,并保留了原系统的全部特征值信息. 互联网 Q : WARNING : THE SYSTEM MATRIX HAS 1 NEGATIVE EIGENVALUES. ...
***WARNING: THE SYSTEM MATRIX HAS 1 NEGATIVE EIGENVALUES. NEGATIVE EIGENVALUES MEAN THAT THE SYSTEM MATRIX IS NOT POSITIVE DEFINITE: FOR EXAMPLE, A BIFURCATION (BUCKLING) LOAD MAY HAVE BEEN EXCEEDED. ***WARNING: SOLVER PROBLEM. NUMERICAL SINGULARITY WHEN PROCESSING NODE SPLINE-2-1.98 D.O...
Ansys分析计算时..Ansys分析计算时出现the system matrix is unsymmetric卡住了,怎么解决?有没有大神,求教快毕不了业了
It's important to note that the .NET Framework has supported multithreaded development since its inception. The System.Threading namespace provides a plethora of low-level synchronization primitives, such as monitors, mutexes, semaphores, events, and thread-local storage, many of them since version ...
To the best of my knowledge, CNTK is the most powerful neural network system for Windows that is generally available to developers. This article has covered only a very small part of what CNTK can do, but it should be enough to get you up and running with simple neural networks and allow...
It's important to note that the .NET Framework has supported multithreaded development since its inception. The System.Threading namespace provides a plethora of low-level synchronization primitives, such as monitors, mutexes, semaphores, events, and thread-local storage, ma...
A continuous Gaussian kernel is a matrix of values that sum to 1.0; has the largest value in the center; and is radially symmetric. Here is a 5 x 5 Gaussian kernel with a standard deviation of 1.0: XML Copy 0.0030 0.0133 0.0219 0.0133 0.0030 0.0133 0.0596 0.0983 0.0596 0.0133 0....
Density matrix breaks symmetry, PCut= 6.91D-03 Density matrix has no symmetry -- integrals replicated. Iteration 80 EE= -1377.03506721338 Delta-E= -0.001137227868 Grad=4.268D-02 Gradient too large for Newton-Raphson -- use scaled steepest descent instead. Convergence failure. Error termination via...