Analysis of contact stresses at thohoidal gearing by numeric approach

Abstract

In this paper the analysis of contact stresses at trochoidal gearing of the rotational elements with fixed shaft axes and driving rotor that is connected with internal element is presented. At first, the basic characteristics and acting mechanisms of those pumps are presented in the paper. Also, the review of development and state of the art in the area of numerical analysis of gerotor pumps are presented. In the aim to determine the maximal stresses, in the second part of the paper, numerical analysis of contact stresses that are consequence of torque transmission from driving internal element to driven external gear is described. Graphical presentation of contact stresses values determined by numerical and analytical approach that is done, is presented in this part of the paper, in order to evaluate the differences and deviations of those values.