Dr.-Ing. Jannik Henser

Dr.-Ing. Jannik Henser is managing director of the Powertrain Manufacturing for Heavy Vehicles Application Lab in Stockholm, Sweden which is a collaboration between KTH Royal Institute of Technology, Fraunhofer and RISE Research Institutes of Sweden. Prior to that Henser worked in Aachen, Germany at the Fraunhofer Institute for Production Technology IPT and the Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University as research engineer and group leader of the group gear design and manufacturing simulation. Henser graduated from RWTH Aachen University in 2010. In 2015 Henser received his Ph.D. (calculation of tooth root load carrying capacity of conical involute gears) and has received the Borchers Medal of RWTH Aachen University in 2016. (Bio last updated 2018-02-05 Contact Randy Stott, Managing Editor, with changes.)

Articles by Jannik Henser

  • 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.