A closely coiled helical spring is loaded by a compression force. The spring has middle diameter D, wire diameter d, and it consists of i turns. O comprimento total da mola é L. Determine the total deflection of the spring for the member model and one‑turn deflection for the solid model.
Um oscilador simples é composto por massa m (a ser considerada apenas na direção x-) e pela mola linear com a rigidez k. The mass is embedded on a surface with Coulomb friction and is loaded by constant-in-time axial and transverse forces.
O objetivo deste exemplo é demonstrar um processo irreversível causado pelo atrito. After the loading and unloading, the end-point is in a different position than where it was at the beginning. Determine the movement of the node in the X direction.