TY - JOUR N2 - In the paper, a solution to the problem of elastic deformation of thin-walled shell structures with complex shapes within the theory of geometrically non-linear shells has been presented. It is a modification of the Newton-Raphson method. In a variational formulation, the problem is based on a Lagrange’s functional for increments of displacements. The method has been applied to investigations of a harmonic drive, in particular to analysis of the stress state in the flexspline with a variable curvature as well as bearings of the generator. For verification of the obtained results, a more adequate FEM model calculated by ANSYS has been used. L1 - http://www.journals.pan.pl/Content/111186/PDF-MASTER/(55-1)115.pdf L2 - http://www.journals.pan.pl/Content/111186 PY - 2007 IS - No 1 EP - 123 KW - FEM KW - thin-walled shell structures KW - gear of harmonic drive KW - mathematical modelling KW - stress analysis A1 - Ostapski, W. A1 - Mukha, I. VL - vol. 55 DA - 2007 T1 - Stress state analysis of harmonic drive elements by FEM SP - 115 UR - http://www.journals.pan.pl/dlibra/publication/edition/111186 T2 - Bulletin of the Polish Academy of Sciences Technical Sciences ER -