Dear All, I am currently modeling in ANSYS workbench. I am considering damping coefficient, but I get the error message: If a downstream modal superposition harmonic analysis needs performed with constant damping coefficient (MP,DMPR command) please use the QR damp eigensolver (MODOPT=3DQRDAMP). Current eigensolver, MODOPT=3DLANB, does not support MP,DMPR material property in a subsequent modal harmonic analysis. Does this refer to a setting I need to change? If so is it possible to change this without using the command object? Many thanks Miss Ghazal Hakemi PhD Student Microsystems and Nanotechnology Centre (Building 70) Cranfield University MK43 0AL tel. 01234 750111 x2583