RT Journal Article
SR Electronic
A1 Weis, Peter
A1 Smetanka, Lukáš
A1 Hrček, Slavomír
A1 Brumerčík, František
A1 Fiačan, Jakub
A1 Irfan, Muhammad
T1 Identification of Flexspline Parameters Affecting the Harmonic Drive Lost Motion Using the Global Sensitivity Analysis
JF Communications - Scientific Letters of the University of Zilina
YR 2023
VO 25
IS 2
SP B86
OP B94
DO 10.26552/com.C.2023.025
UL https://komunikacie.uniza.sk/artkey/csl-202302-0007.php
AB The aim of this research was to find out the specific geometrical parameters of the harmonic drive with the greatest impact on its lost motion. Harmonic drive units are widely used in production automation, robotics and automated manufacturing systems. Virtual model of Harmonic Drive was examined using the finite element method. The analyses were performed with considering the real test conditions of high precision gearboxes with a lost motion value of 4 % of the nominal output torque. The analyses' results were then used to develop a unique approach to obtain a functional relationship between the input parameters defining the shape of the flexspline and the harmonic drive lost motion value. Subsequently, the global sensitivity analysis was performed to determine the degree of influence of the selected flexspline parameters on the harmonic drive kinematic accuracy.