Jens Brimmers has been a research assistant in the gear department at the WZL of RWTH Aachen University since May 2015. His research topics focus on the designing of gears — especially beveloid gears — and the development of the general FE-based tooth contact analysis program, ZaKo3D. Brimmers graduated from RWTH University in Aachen with a master's degree in mechanical engineering and a master's degree in business administration. (Bio last updated 2018-02-05 Contact Randy Stott, Managing Editor, with changes.)
Articles by Jens Brimmers
- Influence of the Defect Size on the Tooth Root Load Carrying Capacity (November/December 2017)
The objective of this work is to introduce a method for the calculation of the tooth root load carrying capacity for gears, under consideration of the influence of the defect size on the endurance fatigue strength of the tooth root. The theoretical basis of this method is presented in this paper as well as the validation in running tests of helical and beveloid gears with different material batches, regarding the size distribution of inclusions. The torque level for a 50 percent failure probability of the gears is evaluated on the test rig and then compared to the results of the simulation. The simulative method allows for a performance of the staircase method that is usually performed physically in the back-to-back tests for endurance strength, as the statistical influence of the material properties is considered in the calculation model. The comparison between simulation and tests shows a high level of accordance.