International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Artificial intelligence (AI) and machine learning techniques have revolutionized various fields, including 3D modelling of anatomical structures. One such area of research involves the use of AI and machine learning algorithms for approximating spherical harmonics functions in the realm of anatomical structure modelling.
Spherical harmonics functions are mathematical tools that describe functions on the surface of a sphere. In 3D modelling of anatomical structures, these functions are employed to represent complex surface details with accurate precision. However, calculating values of these functions for complex anatomical structures is time-consuming and prone to errors. This is where AI and machine learning come into play.
Using AI and machine learning algorithms, we have developed models that can automatically learn the inherent patterns and complexities of anatomical structures from vast amounts of training data. These models can then approximate the spherical harmonics functions that accurately represent the surface details of these structures. This automation significantly reduces the time and effort required in the 3D
modelling process.

The current publication presents an approach for the elaboration of a disposable microfluidic hollow micro-channel using 2 photon polymerization technology and Photonic Professional GT2 (Nanoscribe, Germany) equipment. The design of a 3D model of a microchannel is realized by the CAD analysis software – SOLIDWORKS. A suitable laminar flow is generated by using computational fluid dynamics (CFD) software. As a result, the critical points of the pressure, velocity, and wall shear stress into the microfluidic channel are obtained. A real prototype of the hollow microfluidic device is created, using a highly innovative technology of 3D nanoprinting by twophoton polymerization. Experimental studies with dilute erythrocyte suspensions are conducted to test the functionality of the developed prototype of nano 3D printed microchannel.

The present study offers an important technological approach for the development of a disposable microfluidic channel using 3D nanoprinter – Photonic Professional GT2 (Nanoscribe, Germany). This publication aims to present 3D modelling, simulation, and prototype of a 3D nanoprinted microfluidic device for the investigation of blood cells. The design of 3D model of a microchannel is realized by the 3D CAD analysis software – SOLIDWORKS. A suitable laminar flow is generated by using computational fluid dynamics (CFD) software. As a result, the critical points of the pressure, velocity and wall shear stress into the microfluidic channel are obtained. An actual physical prototype of the proposed microfluidic device is developed, using a highly innovative technology of 3D nanoprinting by two-photon polymerization. Experimental studies with dilute erythrocyte suspensions are conducted to test the functionality of the developed real-world prototype of nano 3D printed microchannel.

The subject of research in this paper is the kinematic analysis of the slider-crank mechanism of an internal combustion (IC) engine. The piston, connecting rod and crankshaft are the most important moving parts of an IC engine. The performance of IC engines largely depends on the design of the mentioned parts. Special attention should be paid to the kinematic analysis of the slider-crank mechanism, when constructing IC engines. Properly performed kinematic analysis is a prerequisite for the design of an efficient IC engine. Today, there are many software packages that make it much easier for engineers to perform fast and efficient kinematic analysis of machine assemblies. This paper presents the use of kinematic analysis software on the example of a slider-crank mechanism, an IC engine.

The article presents the methodology for the CAD/CAE/CAM end-to-end design of the impeller of a submersible centrifugal pump for leaching of uranium. The design efforts at the CAD stage are presented, the principle of the functioning of the automated module for designing the profile of the meridian section and the wheel blades created in the MATLAB environment is described. The algorithm for drawing the profile of the blade is proposed. A method for constructing an optimized profile of a centrifugal pump (CP) wheel blade with double curvature is delineated. The computational mechanical scheme for determining the stresses and strength of a designed wheel with double curvature blades is shown. The results of the CAE strength calculation of the designed wheel in the NASTRAN program are provided. The experience of using CAM systems and 3D printing technology to create a centrifugal impeller prototype is given in the article.

Virtual prototypes or virtual 3D models of complex armament parts reduce costs and production time with minimal risk of hidden flaws, testing and analyzing the construction before creating real physical prototypes or optimizing parameters in parallel with the physical prototypes. The report presents the possibility of rapid prototyping through the virtual 3D model of the SPG-9 breech and using additive manufacturing to obtain a functioning physical prototype.

The paper presents the results of research focused on the use of innovative processes in the production of composite materials. The experimental work was focused on the use of Vacuum Bag Molding technology in the production of the prototype of the Shell Ecomarathon formula. The car body was designed with 3D modeling and optimized with airflow simulation. Carbon fibers have been used to reduce the vehicle’s weight. Some complementary parts were produced using 3D printing.