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failed to find solution

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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


1 Reply Last Post Oct 17, 2021, 1:36 p.m. EDT
Dave Greve Certified Consultant

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Posted: 3 years ago Oct 17, 2021, 1:36 p.m. EDT

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.

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.

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