Design of Machines and Structures

Consistency improvement and normalisations in multi-criteria decision support methods

Judit Albert, Ágnes Takács — Sun, 30 Nov 2025 00:00:00 +0100

Optimisation problems in mechanical engineering often involve several conflicting objectives and require multi-purpose optimisation (MOO) to solve. The solution of MOO problems is a set of equally good optimal solutions, which are called Pareto-optimal solutions. In order to choose one of the Pareto-optimal solutions, multi-criteria decision-making (MCDM) is required.

Components optimisation for FDM technology

Csaba Dömötör — Sun, 30 Nov 2025 00:00:00 +0100

This article presents the requirements for the redesign of spare parts made with additive manufacturing and the possibilities of their simplification. Through a few examples, it examines in detail the steps taken to meet the requirements and the utilisation of the potential possibilities in 3D printing.

Analysing the relationship between additive manufacturing market and GDP

Péter Ficzere — Sun, 30 Nov 2025 00:00:00 +0100

This paper investigates the correlation between the additive manufacturing (AM) market and gross domestic product (GDP) in different regions around the world. Using data from Grand View Research (https://www.grandviewresearch.com) and the World Bank (https://data.worldbank.org), market trends, economic indicators and regional disparities were analysed. The study provides visualisations and tabular data to support the analysis, offering insights into the economic impact of AM technologies.

A study on the inverse design of functionally graded curved components with finite element software scripting

Dávid Gönczi — Sun, 30 Nov 2025 00:00:00 +0100

Inverse design is an important computational method that determines the optimal material distribution or geometry, particularly in functionally graded materials, to achieve predefined performance targets by tailoring spatially varying properties usually by applying optimisation techniques and other artificial intelligence methods. The purpose of this paper is to study the calculation of basic field variables for curved components (such as curved plates, cylinders) made from functionally graded materials and its implementation into the design process using the scripting environment of a finite element software system. Thermomechanical problems are considered, where the bodies are subjected to combined thermomechanical loading. We examine the characteristics of design optimisation through a simpler, one-dimensional example and explore a few possibilities to facilitate the design process.

Investigation of properties of machine tools

Dániel Tóth — Sun, 30 Nov 2025 00:00:00 +0100

Inspection of machine tools is a foundational element of modern manufacturing quality control. As industries demand tighter tolerances, increased automation and higher productivity, machine tools must operate at peak accuracy. Over time, all machine tools experience degradation caused by mechanical wear, thermal effects, vibration and environmental factors. Regular inspection helps ensure that the accuracy and reliability of machine tools remain within acceptable limits. This paper deals with investigation of machine tools.