PL EN

Automation, electronic and electrical engineering

Author of the topic: dr hab. inż. Bogusław Butryło, prof. PB:    +48 85 746 94,   b.butrylo [at] pb.edu.pl

Scope

Broadband electromagnetic composites with specific properties are the subject of the work. Selected regular arrangements of conductive, dielectric or paramagnetic particles are placed in the base dielectric. The materials are designed to operate in high frequency range (100 MHz – 10 GHz). As part of the topic, it is possible to develop new, specific material structures with frequency selective properties, shielding elements, with planar or spatial configurations of elements. Initial research will be carried out using numerical modelling schemes (broadband finite element method or finite difference time domain algorithm). Some special numerical schemes for analysis of composite structures with specific topology of particles can be a part of the work. Selected configurations of materials will be experimentally verified and applied in some specific HF elements.
Proposed scope:

  1. Selection of method for broadband analysis of electromagnetic properties of frequency dispersive materials.
  2. Development of numerical models of selected composite structure with periodic configuration of components.
  3. Development of homogenization method for electromagnetic dispersive materials.
  4. Analysis of spectral properties of the proposed materials.
  5. Estimation of electrical properties of selected HF electronic elements made of dispersive dielectrics.
  6. Experimental verification of the obtained results (or using the other numerical method).

Author of the topic: dr hab. inż. Bogusław Butryło, prof. PB:    +48 85 746 94,   b.butrylo [at] pb.edu.pl

Scope

The subject of work will be algorithms of numerical simulations and properties of materials with mixed profiles of frequency dispersion, including Drude, relaxation (Debye) fractional relaxation (CC, CD) and Lorentz models. Proposition of modelling (approximation) of dispersion characteristics. Development of numerical methods for planar elements with periodic arrangement of dispersive materials. Some electronic high-frequency elements with dispersive materials will be subject to experimental verification.
Proposed scope:

  1. Development of numerical broadband algorithm for materials with Drude dispersion.
  2. Development of numerical broadband algorithm for materials with Debye / Lorentz dispersion.
  3. Structure adjustment of periodic materials for desired dispersive profiles.
  4. Designing of shielding elements with dispersive materials.
  5. Designing elements with dispersive materials for shaping local distribution of EM field.

Author of the topic: dr hab. inż. Irena Fryc, prof. PB:   +48 85 746 9407,   i.fryc [at] pb.edu.pl

Scope

Lighting is currently undergoing a revolutionary change in the types of light sources used – the classical lamps are repealed by semiconductor elements. This process also forces changes in the colorimetric and photometric measurements methods of this new type of light sources. One of the priorities of modern optical radiation metrology is to development of requirements for spectral distributions of lamps used for the calibration of photometers and colorimeters. Currently, for colorimetric/photometric measurements, illuminatant A (incandescent lamp with a color temperature of 2856K) is used as the reference spectrum. However, when measuring semiconductor light sources, the use of this type of illuminatant leads to significant measurement errors. Therefore, this lamp should be replaced by another light source. The aim of the work is to develop spectral distributions of light sources which can be considered as standard when carrying out colorimetric/photometric measurements.

Author of the topic: dr hab. inż. Irena Fryc, prof. PB:   +48 85 746 9407,   i.fryc [at] pb.edu.pl

Scope

Due to the current avalanche increase in outdoor lighting forced by progressive urbanization and archivable thanks to the use of energy-saving semiconductor light sources, it is important to protect the environment from the negative effects of excessive night-time ambient light, i.e. reducing light pollution.
From the point of view of light fixture users, the moving from classical light sources to semiconductor light sources should not increase negative environmental impact. However, this phenomenon occurs, and modern semiconductor lighting fixtures largely pollute the environment. This negative effect is due to the fact that designers apply classical lighting fixtures rules for their design, and do not take into account the fact that LED light sources have different light parameters (SPDs, CCT, luminance) than classical ones.
Currently are not existing any luminaire design recommendations when based on them light pollution created by given luminaire will be minimize/reduce . In the study is important to identify the principles to be followed when designing lighting fixtures able minimalized light pollution in the area. Up to now, there are not scientific studies on the requirements for spectral distribution of lamps, which will minimize their negative impact on the illuminated outdoor areas, while ensuring the useful and aesthetic function of the illuminated terrain. In addition, it is also important to develop requirements (supported by scientific research) regarding the light curve of the lighting fixture limiting its negative impact on the illuminated outdoor areas, while maintaining the normative requirements for lighting outdoor areas. Modern scientific literature states only that light emitted in the upper half-space should be limited. This approach is due to the lack of extensive scientific research indicating other causes of ambient light pollution than just the luminous flux sent to the top of the lamp (UL). In the literature of the subject there are fragmented works indicating factors other than UL that affect light pollution. In particular, there is a lack of comprehensive work to bind studies of the impact of a particular lamp’s SPDs and its light curve on the effect of light pollution and to identify/develop methods for minimizing this effect with a specific SPDs and light curve.

Author of the topic: dr hab. inż. Renata Markowska, prof. PB:   +84 85 746 93 56,   r.markowska [at] pb.edu.pl

Scope

  1. Review of the literature on electromagnetic phenomena occurring in lightning protection systems, the surge properties of components of lightning protection systems, as well as methods of studying these phenomena and properties.
  2. Modeling and simulation of threats related to the development of voltage flashovers (insulation breakdown) in the places of proximity of the components of the lightning protection system to other conductive installations.
  3. Experimental research on the impulse withstand of insulating arrangements, formed by air gaps, dielectric materials and elements of installations and building structures.
  4. Experimental verification of the calculation results, comparison of the results of experimental research with the results presented in the literature.
  5. Development of simplified, engineering methods for estimating insulation distances for the purpose of lightning protection in building objects.
  6. Summary and conclusions.

Author of the topic: dr hab. inż. Piotr Miluski, prof. PB:    +48 85 746 9406,   p.miluski [at] pb.edu.pl

Scope

As part of the work, it is planned to develop new functional materials (luminescent, photochromic, thermochromic) with physical properties
for the production of thin optical layers by spin and dip coating techniques. The planned theoretical analysis and experimental work will be carried out assuming the possibility of their use in optoelectronic planar sensors. The work is theoretical and practical

  1. Review of the current state of knowledge in the field of work.
  2. Review of functional compounds used for optical polymers doping.
  3. Development of a method for the production of optical structures with the use of selected groups of optically active compounds.
  4. Characterization of optical properties of fabricated materials and sensing structures.
  5. Conclusions.

Author of the topic: dr hab. inż. Piotr Miluski, prof. PB:    +48 85 746 9406,   p.miluski [at] pb.edu.pl

Scope

As part of the work, it is planned to develop new structures of optical polymer waveguides for applications in optical waveguide technology. Planned research work and experiments will be carried out with the use of printing technology with the use of new optical polymers. The designed structures will remain made and subjected to the characterization of their properties. The work is theoretical and practical.

  1. Review of the current state of knowledge in the field of the possibility of using the printing technology for the production of optical structures.
  2. Review of materials used and functional compounds for modification properties of polymeric materials.
  3. Development of a method for the fabrication of optical waveguide-based structures based on selected optical polymers.
  4. Measurements of physical and optical properties of manufactured polymer structures.
  5. Conclusions.

Author of the topic: dr hab. inż. Arkadiusz Mystkowski, prof. PB:   +48 571 443 058,   a.mystkowski [at] pb.edu.pl

Scope

The aim of the thesis is to develop neural networks based algorithms to optimize the parameters of the iterative learning control for the manipulator effector positioning (trajectory following problem). The main objective of the developed control designs is to ensure a high accuracy of positioning and the reference trajectory tracking of the manipulator. The work covers research on control algorithms, their synthesis and analysis. Selected algorithms will be simulated in the Matlab/Simulink environment, and then experimentally verified on a test stand consisting of an industrial manipulator.

Thesis scope:

  1. Testing selected control methods with iterative learning control and neural networks in terms of improving the operating parameters of an industrial manipulators.
  2. Developing an effective algorithm with iterative learning control that minimizes the error of the manipulator effector movement trajectory tracking.
  3. Developing a manipulator motion simulator with iterative learning control.
  4. Experimental verification and control quality analysis.

Author of the topic: dr hab. inż. Arkadiusz Mystkowski, prof. PB:   +48 571 443 058,   a.mystkowski [at] pb.edu.pl

Scope

The aim of the thesis is to develop a diagnostic system for a rotor machine capable of identifying and detecting symptoms of damage to its components with the use of selected artificial intelligence methods. The structure of the system includes a vibration measurement system, a system for processing measured signals, a microprocessor system for the implementation of damage recognition algorithms, a wireless communication system and an application with a user interface. As part of the work, various artificial intelligence algorithms will be tested in terms of operational efficiency. Selected algorithms will be tested in simulation software and then experimentally verified on a test rig.

Thesis scope:

  1. Testing selected artificial intelligence methods for monitoring the technical condition of the rotor machine, recognizing and detecting symptoms of wear / damage.
  2. Synthesis of artificial intelligence algorithms for the diagnosis of selected damage to the rotor machine.
  3. Implementation and analysis of the effectiveness of algorithms on the example of a selected rotating machine application.
  4. Evaluation of the operation of the measurement system, communication and application with the user interface.