The Design Features of Locomotives with Hybrid Propulsion Systems -- Reconfiguration Mechanism Analysis of the Wheel-Track Robot -- Modified Double-slider Coupling of Multioperational Milling Machine -- Resonance Phenomena in Vehicle Suspension -- Structural Strength Modelling Methods for Solid-Rolled Railway Wheels -- Tool condition monitoring techniques for milling -- Analysis of Deformation Behavior for Titanium Alloys at Elevated Temperature -- Modeling the Aerodynamic Parameters of Centrifugal Fans with an Axial Distributor.