Deformations and pressure distribution on machine tool slideways

A finite element analysis of machine tool slideways has been carried out by using two-dimensional slideway models. Models are considered to consist of contact elements at the interface of sliding surfaces. Flat and dovetail types of slideways are modelled, and pressure distributions and deformations are determined with the use of ANSYS Rev. 5.OA non-linear contact elements. Close correlation of the results obtained from ANSYS with the experimental results given in the literature demonstrates the validity of the models used. Ease of construction of the models and faster solution times seemed to be the advantages of this method. The existing designs can easily be modified if the requirements on the allowable pressure distribution and deformations on the contact surfaces are specified. (C) 1997 Published by Elsevier Science Ltd.