Dear all, while doing electrostatic analysis on cantilever beam in ANSYS I'm facing one difficulty; as my results are matching with simplified spring mass system when the deflection is small but giving high error when deflection becomes large. I'm using multifield analysis using 2-D model and and solid fluid interface. Can anyone help help me solve this bug. Thanks, Kulkarni Chaitanya G. M. Tech. Mechanical Engg. (Design) Hostel 12, Room A/317 IIT Bombay, Powai, 400074 9819014951