Aleks Vrček
YOU?
Author Swipe
View article: A Novel Tribometer and a Comprehensive Testing Method for Rolling-Sliding Conditions
A Novel Tribometer and a Comprehensive Testing Method for Rolling-Sliding Conditions Open
This study introduces a method based on fine torque control to evaluate traction in rolling—liding line contacts under small slide-to-roll ratios (SRRs). To accomplish this, we engineered an innovative testing machine—a two-roller tribomet…
View article: Micro-pitting and wear characterization for different rolling bearing steels: Effect of hardness and heat treatments
Micro-pitting and wear characterization for different rolling bearing steels: Effect of hardness and heat treatments Open
The current trend of increased power density and reduction of oil viscosity in machine components is forcing engineers and scientists to engineer surfaces to endure higher contact pressures and stresses induced from rolling/sliding motion.…
View article: Experimental and numerical investigation of asperities and indents with respect to rolling contact fatigue
Experimental and numerical investigation of asperities and indents with respect to rolling contact fatigue Open
Rolling contact experiments with slip were performed on artificial asperities and indents with pile-up. Micro-pits arose at the leading edge of the asperities and classic rolling contact fatigue (RCF) cracks initiated behind the trailing e…
View article: On Waviness and Two-Sided Surface Features in Thermal Elastohydrodynamically Lubricated Line Contacts
On Waviness and Two-Sided Surface Features in Thermal Elastohydrodynamically Lubricated Line Contacts Open
Machine components are designed to endure increasingly severe operating conditions due to the strive for improved energy efficiency of mechanical systems. Consequently, lubricated non-conformal contacts must rely on thin lubricant films wh…
View article: Micro-Pitting and Wear Assessment of PAO vs Mineral-Based Engine Oil Operating under Mixed Lubrication Conditions: Effects of Lambda, Roughness Lay and Sliding Direction
Micro-Pitting and Wear Assessment of PAO vs Mineral-Based Engine Oil Operating under Mixed Lubrication Conditions: Effects of Lambda, Roughness Lay and Sliding Direction Open
Under certain operating conditions, rolling contacts have been shown to experience some challenges when lubricated with engine oils containing zinc dialkyldithophosphate (ZDDP) anti-wear additive. In order to better understand the main dam…
View article: Micro-pitting and wear characterization for crankshaft roller bearing application
Micro-pitting and wear characterization for crankshaft roller bearing application Open
Efficiency of internal combustion engines (ICEs) is far from optimal. Due to the continuously increasing demands on CO2 regulations, automobile industries are forced to improve such efficiency. A crankshaft roller bearing (CSRB) can lead t…