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failed to find solution
Posted 17 oct. 2021, 06:56 UTC−4 1 Reply
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hello i have done time dependent thermal stress analysis in my 2D design. i have fond following error:
- Feature: Time-Dependent Solver 1 (sol1/t1) Failed to find consistent initial values. Singular matrix.
For mesh case 0 there are 132482 void equations (empty rows in matrix) for the variable comp1.u. at coordinates: (0.0249452,0.00524697), (0.024974,0.00524692), (0.0249716,0.00522681), (0.0249716,0.00527007), (0.0249284,0.00524912), ...
For mesh case 0 there are 132482 void equations (empty rows in matrix) for the variable comp1.v. at coordinates: (0.0249452,0.00524697), (0.024974,0.00524692), (0.0249716,0.00522681), (0.0249716,0.00527007), (0.0249284,0.00524912), ...
For mesh case 0 there are 14 degrees of freedom that do not occur in any equation (empty columns in matrix) for the variable comp1.u. at coordinates: (0.0255323,0.00519521), (0.025726,0.00616827), (0.0261513,0.00520448), (0.026507,0.00449249), (0.0253433,0.00695707), ...
For mesh case 0 there are 16 degrees of freedom that do not occur in any equation (empty columns in matrix) for the variable comp1.v. at coordinates: (0.0255323,0.00519521), (0.025726,0.00616827), (0.0261513,0.00520448), (0.026507,0.00449249), (0.0253433,0.00695707), ... Last time step is not converged.
so kindly suggest me how to remove error
thanku
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Without looking at the file it is not possible to do any more than make wild guesses about the cause for this problem.
However- in my experience- that error message appears when something somewhere has not been adequately specified.