Jędrzej Blaut

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• Doctor of Engineering
• Assistant Professor at AGH University of Krakow

This study investigates the feasibility of integrating Hyperloop technology with hydrogen fuel systems. The primary objective was to evaluate how Hyperloop infrastructure can incorporate hydrogen refueling stations to optimize transport efficiency and sustainability. The research utilized simulation models developed with ArchiCAD and FlexSim softwa...

The tested bearings were subjected to equal loads and rotational speeds, using water as the lubricant. Analysis showed that they achieved the best vibration damping at lower speeds, between 600 and 1100 rpm. Comparative studies of bearings made of different materials, such as available on the market bearings made of rubber, bearings printed with a...

Entropia dyspersji jest miarą statystyczną złożoności, porównującą sposób, w jaki szczegóły w wzorze zmieniają się wraz ze skalą, na której jest mierzony. Można teoretycznie i empirycznie mierzyć kilka rodzajów entropii dyspersji. Samopodobieństwo rozumiane jest jako symetria dotycząca skali, co oznacza, że dla danej struktury (zwykle fraktalnej) w...

Introduction There is a noticeable lack of studies relating to voice, breathing and how they relate to each other in patients with voice or respiratory diseases. Therefore, the aim of our study was to assess and compare the breathing pattern and voice variables in people with voice and respiratory disorders. Material and Methods The research was co...

A fractal dimension is a ratio providing a statistical index of complexity comparing how detail in a pattern changes with the scale at which it is measured. Several types of fractal dimensions can be measured theoretically and empirically. Self-similarity is understood as symmetry concerning the scale, which means that to a given structure (usually...

Vibrational behaviour of hydraulic power system elements is crucial in aspects of noise problems. Hydraulic lines used in engineering systems to transfer hydraulic energy are also a structural and fluid coupling between vibrating elements of the entire system. Excitation generated in different places of the hydraulic systems due to external loads,...

The paper presents the use of the Teager-Kaiser energy operator (TKEO) to evaluate the state of rotor unbalance. The method was developed in 1990 by Kaiser and involves a simple calculation of signal energy. It has been used before in diagnostics, e.g. during the evaluation of instability of hydrodynamic bearings and as a diagnostic symptom of gear...

The paper presents the concept of vibration measurement and reduction system for rails in hyperloop technology. It is based on the experience of measuring vibrations in high-speed rail, the first commercial magnetic rail, and vibration reduction systems for these rails. The authors outlined a conceptual vibration monitoring system based on the MQTT...

The article presents an example of application of the Teager-Kaiser Energy Operator in automatic rotor balancing. The Teagear Kaiser Energy Operator is a signal analysis method, which allows for some mechanical objects to estimate energy changes in Newtonian terms by means of a displacement signal. Rotors are a structural element that rotates aroun...

The article discusses a number of aspects related to the application of surface autonomous technological transport vehicles. The attention of the authors is mainly focused on issues related to the location of the technological means of transport in the working space, planning the traffic trajectory for the implementation of the transport task, tech...

The article presents the economic potential of trade between China and the European Union using a new means of transport - low-pressure railways. The technology is based on the transport of goods in capsules, moving inside a tightly closed tube, in which the pressure is lowered to about 100Pa. Thanks to the low pressure, the resistance of the air i...

The civilisation progress has caused noise to become one of essential pathogenic and life comfort decreasing factors. There are several legal regulations aimed at controlling the noise influence on humans. Assessment of the twenty-four-hour influence of noises in various environments constitutes an essential problem. The answer can be supplied by 2...

A novel vibration-based monitoring technique for shaft bearings in seagoing vessels is presented in this paper. Described observation of the lubricated wedge stability was carried out using test fixture. The analysis of results is based on an original method which put Energy Operator of Teager Kaiser to use. Analysis results were compared with the...

Postural control and breathing are mechanically and neuromuscularly interdependent. Both systems- of spinal stability and respiration- involve the diaphragm, transversus abdominis, intercostal muscles, internal oblique muscles and pelvic floor muscles. The aim of the study was to evaluate the effect of exercises activating deep stabilizer muscles o...

The paper presents application of a non-linear method (energy operator) to monitor the operation of a plain bearing. The possibility of using the energy operator to evaluate the energy of a simulated mechanical system was analysed. Then, an experiment was conducted in the laboratory environment which involved observation of oil vortexes. This allow...

The article discusses the relationship between the heat flow and the power supplied to a test object. Often, it is reasonable to say that the heat flow and power are correlated. Intuitively, one can assume that knowing the distribution of the heat flow in time permits to determine the power of a system. Such a statement is valid in some cases. In o...