A finite element analysis of blade-wheel's strength on torque converters based on steady operating conditions

In order to solve the blade-wheel's strength problem under actual work conditions of a hydrodynamic torque converters used on vehicles, a finite element model of blade-wheel's strength was established. Considering the torque converter's work conditions, a match calculation between the torque converter and the engine was finished firstly, through which the steady working point in actual applications was obtained. A finite element analysis was executed after fluid load and centrifugal load were applied on the blade-wheel, by which the relationship among blade-wheel's stress distribution, deformation and work conditions was got. During the analysis the blade-wheel was regarded as a cyclic symmetric structure, so the cyclic boundary connection was defined by a data constraint equation. With the help of the constraint equation, the whole blade-wheel's strength analysis was able to complete on a single basic cyclic sector. It is suggested by the result of this study that this research method is effective in the blade-wheel's strength analysis.