Steady Temperature of a Cylindrical Roller to Ring in PumpUnder Friction Heating - Analytical and Experimental Study

Friction heating in solid cylindrical body contact has been an interesting subject for a long time for physicists (i.e. tribologists) and application engineers. In the current environment where the industry product, such as Diesel Rotary Pump (DRP), being operating at higher speed, the temperature rise from the friction contact is of great importance to the manufacturer for thermal safety and its environment effect. In this paper, a steady-state temperature rise under friction heating is studied on a pump roller to cam ring contact within a cyclic segment of a DRP using quasi steady thermal modeling by both the analytical exact solution obtained to the equations from friction heating and thermal conduction and cooling, and finite element analysis (FEA) method constructed with heat flux data based on actual hardware test. In addition to the analytical solution and FEA results, an experimental test was conducted to measure/ collect the thermal temperature data near the contact region to correlate the results from analytical solution and FEA simulation, they are found in good agreement.