摘要：The static problem of torsion is analysed for comparison of various expressions of error norms. On the basis of this analysis the expression for the relative error norm is chosen. The eigenproblem of plane stress is analysed. For validation of eigenmode calculations averaged relative error norms are introduced. The representation of relative error norms and of averaged relative error norms by the intensities of finite elements with intensity mapping for better utilisation of the intensity scale is proposed. The presented results serve as a means for validation of eigenmode calculations.
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