Mechatronic Systems and Materials Proceedings: Table of Contents

Development of a tool centre point tracker for performance monitoring of industrial robots

Makulavičius, Mantas — 2026-01-09T00:00:00Z

Mechatronic Systems and Materials Proceedings, Vol. 1, 2026, p. 12-16.
Mantas Makulavičius, Artem Konotopchyk, Marius Šumanas, Andrius Dzedzickis
Accurate monitoring of robotic Tool Centre Point (TCP) trajectories is essential for ensuring precision, repeatability, and quality in industrial processes such as welding, milling, and assembly. The proposed framework integrates computer vision techniques with trajectory analysis to facilitate the monitoring of robotic operations. The system integrates an industrial robot with an HD camera and Python-based OpenCV processing to visualize and evaluate deviations in real time. The methodology is structured into three stages: (i) contour detection and preprocessing of visual data, (ii) trajectory tracking and visualization, and (iii) accuracy evaluation through nearest-neighbor point cloud analysis and Euclidean distance metrics. The findings demonstrate the system's capacity to reliably detect pointer motion, remove irrelevant background information and compute deviations with millimeter-scale precision. A comparative investigation was conducted to determine the accuracy, consistency, and robustness of automated monitoring in comparison to manual observation.

Alternative progressive stamping injection determination by eddy current sensors readings

Skardžius, Juras — 2026-01-09T00:00:00Z

Mechatronic Systems and Materials Proceedings, Vol. 1, 2026, p. 17-21.
Juras Skardžius, Justinas Gargasas
The study discusses the accuracy of eddy current sensors in measuring material thickness, during production process with a maximum deviation of 25,3 µm. It presents a comparison table of calibrated plates and sensor readings, highlighting certain discrepancies attributed to measurement techniques, random errors and sensor positions. The experiment's findings show that by implementing sensors it is possible to monitor process in real time and adjust parameters accordingly.

Multi-scale rheological properties of municipal solid waste fly ash-asphalt mastic materials

Chen, Weili — 2026-01-09T00:00:00Z

Mechatronic Systems and Materials Proceedings, Vol. 1, 2026, p. 22-27.
Weili Chen
In order to promote the resource utilization of the byproducts of municipal solid waste incineration in asphalt pavement materials, this study selected different types of waste incineration fly ash as fillers and prepared waste fly ash-asphalt mastic materials. The Brookfield viscosity test was used to investigate the variation in apparent viscosity of the waste fly ash-asphalt mastic at different temperatures. The dynamic shear rheological test was employed to study the effects of fly ash content on the viscoelastic properties of asphalt under different frequencies. The low-temperature bending beam rheological test was used to analyze the changes in creep stiffness and creep rate of the waste fly ash-asphalt mastic. Based on this, the rotating film oven aging test was conducted to investigate the mass loss and softening point increment of the waste fly ash-asphalt mastic. The results indicated that the small particle size and developed pore structure of fly ash contributed to the adsorption of asphalt components, enhancing the volume of the mastic. As the fly ash content increased, its specific surface area also increased, further promoting the increase in the viscosity of the asphalt mastic. Under low-temperature conditions, the asphalt mastic became more prone to hardening and brittleness, which resulted in poorer low-temperature cracking resistance, consistent with the ductility results.

Evaluation of the ride smoothness of railway rolling stock with a pneumatic suspension system

Kuzyshyn, Andrii — 2026-01-09T00:00:00Z

Mechatronic Systems and Materials Proceedings, Vol. 1, 2026, p. 28-34.
Andrii Kuzyshyn, Vitalii Kovalchuk, Vitaliy Korendiy
The object of the study is multiple-unit rolling stock with a pneumatic suspension system. To evaluate the dynamic safety indicators of train operation, namely ride smoothness, full-scale experimental dynamic tests of the multiple-unit rolling stock were conducted under actual operating conditions. The tests involved attaching analog acceleration sensors to the upper mounting plate of the pneumatic spring. Using modern ADXL-335 analog accelerometers combined with an ESP-32 microcontroller, acceleration records of the car body in vertical and horizontal directions were obtained. It was established that the root mean square acceleration in the vertical direction is 0.278-0.312 m/s2, in the horizontal direction – 0.206-0.251 m/s2, while the ride smoothness index W lies within the following ranges: for the vertical direction – 2.96-3.06; for the horizontal – 2.91-3.09. The obtained results can further be used to verify the adequacy of the outcomes derived from theoretical mathematical models.

Numerical evaluation of horn geometry influence on VHCF ultrasonic test parameters

Garalis, Lukas — 2026-01-09T00:00:00Z

Mechatronic Systems and Materials Proceedings, Vol. 1, 2026, p. 1-6.
Lukas Garalis, Nikolaj Višniakov, Andrius Čeponis
The study presents a numerical investigation of the influence of horn geometry on the performance of a 20 kHz ultrasonic testing system used for Very High Cycle Fatigue (VHCF) applications. The system, comprising an aluminium horn and duplex 2205 steel specimen, was evaluated using COMSOL Multiphysics. Four horn geometries – conical, stepped-conical, exponential, and stepped-cylindrical – were analysed to compare their ability to amplify displacement and stress under varying input voltages. Findings indicate the importance of horn geometry in achieving optimal resonance and mechanical amplification, offering valuable insight for the design of efficient ultrasonic fatigue testing systems.

Analysis of the influence of flexible ring fillet length on the contact characteristics and motion stability of power roll rings

Li, Junye — 2026-01-09T00:00:00Z

Mechatronic Systems and Materials Proceedings, Vol. 1, 2026, p. 7-11.
Junye Li, Xinjun Xie, Gaopeng Shuai, Haiyan Wu, Hongwei Zhang, Haihong Wu, Weihong Zhao
Based on the COMSOL Multiphysics simulation platform, this paper establishes a complete finite element model of a power roll ring assembly. The model consists of inner and outer conductive rings made of H62 brass and a flexible ring made of C17200 beryllium bronze. After meshing, a rotational speed was applied to the inner conductive ring according to actual working conditions, and consistent boundary conditions and friction coefficients were set at the contact pairs for transient dynamic analysis. The study focuses on investigating the influence of the flexible ring’s fillet length (0.15 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.35 mm) on the system’s contact characteristics and motion stability. By analyzing stress nephograms, motion trajectory diagrams, and quantitatively calculating contact pressure, the results show that the maximum contact stress of the flexible ring is concentrated at the contact points with the inner and outer conductive rings and increases with the fillet length. However, the contact pressure decreases as the fillet length increases, with small fluctuation amplitude, ensuring the operational stability of the power roll ring. This research provides a theoretical basis and an effective method for the structural optimization and performance evaluation of power roll rings.