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Number of results: 7
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Abstract

The paper presents a method of determining the efficiency of the slewing drive system applied in tower cranes. An algorithm for the proper selection of a permanent magnet synchronous motor (PMSM) for crane applications is presented. In the first stage of our research the proper PMSM was proposed on the basis of the simulation calculation. Next, the PM motor was examined on a special test bench. The experimental setup allows determining major electrical and mechanical parameters of the motor drive system. The applied slewing system consists of: an inverter, gear, cable drum and a permanent magnet motor. The performance and efficiency of the system were experimentally determined. Selected results of the experimental measurement are presented and discussed.
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Bibliography

[1] Gansen A.U., Chokkalingam L.N., Self-start synchronous reluctance motor new rotor designs and its performance characteristic, International Transaction on Electrical Energy Systems, vol. 29, no. 11, pp. 1–22 (2019).
[2] Resa J., Cortes D., Marquez-Rubio J.F., Navarro D., Reduction of induction motor energy consumption via variable velocity and flux references, Electronics, vol. 8, no. 740, pp. 1–14 (2019).
[3] Belmans R., Bisschots F., Trimmer R., Practical design considerations for braking problems in overhead crane drives, Annual Meetings of IEEE Industry Applications Society – IAS, vol. 1, pp. 473–479 (1993).
[4] Baranski M., FE analysis of coupled electromagnetic-thermal phenomena in the squirrel cage motor working at hight ambient temperature, COMPEL, vol. 38, no. 4, pp. 1120–1132 (2019).
[5] Kometani H., Sakabe S., Nakanishi K., 3-D electro-magnetic analyses of a cage induction motor with rotor skew, IEEE Transactions on Energy Conversion, vol. 11, no. 2, pp. 331–337 (1996).
[6] Torrent M., Perat J.I., Jimenez J.A., Permanent magnet synchronous motor with different rotor structures for traction motor in high speed trains, Energies, vol. 11, no. 1549, pp. 1–17 (2018).
[7] Knypinski Ł., Nowak L., Demenko A., Optimization of the synchronous motor with hybrid permanent magnet excitation system, COMPEL, 2015, vol. 34, no. 2, pp. 448–455 (2015).
[8] Zawilak T., Influence of rotor’s cage resistance on demagnetization process in the line start permanent magnet synchronous motor, Archives of Electrical Engineering, vol. 69, no. 2, pp. 249–258 (2020).
[9] Knypinski Ł., Pawełoszek K., Le Manech Y., Optimization of low-power line-start PM motor using gray wolf metaheuristic algorithm, Energies, vol. 13, no. 5, pp. 1–11 (2020).
[10] Dorell D.G., Popescu M., Evans L., Staton D.A., Knight A.M., Comparison of the permanent magnet drive motor with a cage induction motor design for a hybrid electric vehicle, Proceedings of International Power Electronics Conference – ICCE ASIA, pp. 1–6 (2010), DOI: 10.1109/IPEC.2010.5543566.
[11] Baranski M., Szel˛agW., Łyskawinski W., An analysis of a start-up process in LSPMSMs with aluminum and copper rotor bars considering the coupling of electromagnetic and thermal phenomena, Archives of Electrical Engineering, vol. 68, no. 4, pp. 933–946 (2019).
[12] Slusarek B., Kapelski D., Antal L., Zalas P., Gwozdziewicz M., Synchronous motor with hybrid permanent magnets on the rotor, Sensors, vol. 14, pp. 12425–12436 (2014).
[13] Jedryczka C., Szel˛ag W., Piech J., Multiphase permanent magnet synchronous motors with fractional slot windings, COMPEL, vol. 35, no. 6, pp. 1937–1948 (2016).
[14] Wardach M., Pałka R., Paplicki P., Bronisławski M., Novel hybrid excited machine with flux barriers in rotor structure, COMPEL, vol. 37, no. 4, pp. 1489–1499 (2018).
[15] Młynarek P., Łukaniszyn M., Jagiełła M., Kowol M., Modelling of heat transfer in low-power IPM synchronous motors, IET Science, Measurement and Technology, vol. 12, no. 8, pp. 1066–1073 (2018).
[16] Rebelo J.M., Silvestre M.A.R., Development of a coreless permanent magnet synchronous motor for a battery electric shell eco marathon prototype vehicle, Open Engineering, vol. 8, no. 1, pp. 382–390 (2018).
[17] Knypinski Ł., Krupinski J., The energy conversion efficiency in the trolley travelling drive system in tower cranes, Proceedings of 15-th Selected Issue of Electrical Engineering and Electronics – WZEE, pp. 1–4 (2020), DOI: 10.1109/WZEE48932.2019.8979940.
[18] Egrov A., Kozlow K., Belogusev V., Method for evaluation of the chain derive efficiency, Journal of Applied Engineering Science, vol. 341, pp. 277–282 (2015).
[19] Janaszek M., The analysis of the influence unequal parameters of motors on the work of multimotors traction drive, Journal of the Electrical Engineering Institute (in Polish), vol. 286, pp. 1–26 (2015).
[20] Dambrauskas K., Vanagas J., Zimnickas T., Kalvaitisand A., Ažubalis K., A method for efficiency determination of permanent magnet synchronous motor, Energies, vol. 13, no. 1004, pp. 1–15 (2020).
[21] Knypinski Ł., Krupinski J., Application of the permanent magnet synchronous motors for tower cranes, Przegląd Elektrotechniczny, vol. 96, no. 1, pp. 27–30 (2020), DOI: 10.15199/48.2020.01.07.
[22] Geng S., Zhang Y., Qiu H., Yang R., Yi R., Influence of harmonic voltage coupling on torque ripple of permanent magnet synchronous motor, Archives of Electrical Engineering, vol. 68, no. 2, pp. 399–410 (2019).
[23] Dong S., Zhang Q., Ma H., Wang R., Design for the interior permanent magnet synchronous motor drive system based on the Z-source inverter, Energies, vol. 12, no. 3350, pp. 1–14 (2019).
[24] Chen Z., Zhang H., Tu W., Luo G., Manoharan D., Kennel R., Sensorless control for permanent magnet synchronous motor in rail transient applications using segmented synchronous modulation, IEEE Access, vol. 7, pp. 76669–7667 (2019).
[25] Putz Ł., Bednarek K., Kasprzyk L., Analysis of higher harmonics generated by LED lamps, Przegląd Elektrotechniczny, vol. 96, no. 4, pp. 90–93 (2020).
[26] https://www.krupinskicranes.com, accessed July 2020.
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Authors and Affiliations

Łukasz Knypiński
1
ORCID: ORCID
Jacek Krupiński
2

  1. Poznan University of Technology, Poland
  2. Krupinski Cranes, Poland
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Abstract

This study analyzed the role of PERFORM 3D in the preliminary evaluation of seismic performance of engineering structures. Firstly, PERFORM 3D was briefly introduced, and its material constitutive model and basic model were analyzed. Then, taking a high-rise building project in Yulin, Shaanxi, China, as an example, PERFORM 3D was used to evaluate its seismic performance. After establishing the engineering model, five seismic waves were selected for simulation. The results showed that the maximum values of X-axis inter-story displacement angle and Y-axis displacement angle were 1/500 and 1/360 respectively, which were far less than the standard limit; the overall energy dissipation was good, the damping was small, the overall deformation was good, and the seismic performance was also good. In conclusion, PERFORM 3D has a good performance in the preliminary evaluation of seismic performance of engineering, and it is worth further promotion and application.

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Authors and Affiliations

Dongmei Li
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Abstract

Every conservation works related to an ancient masonry structures should be preceded by an appropriate diagnostic. This should be understood as geometrical survey and various tests, which results with a proper analysis of the structure, identification of materials, technologies and techniques used during construction. The effective tool which could be used in this field is 3-D laser scanning. The digital image obtained as a result of scanning could be a proper base for a preservation programme, as well as help for creation of a precise digital models for a structural analysis. The examples of 3-D laser scanning application presented in the article are diagnostic works carried by the Division of Fundamentals of Building, Warsaw University of Technology, with the cooperation of Warsaw University, at the archaeological sites in Alexandria, Egypt and in Tanais, Rostov, Russia. Based on this works some most important advantages of laser scanning in identification, diagnostics and preservation of ancient architectural monuments was stated.
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Authors and Affiliations

Wojciech Terlikowski
1
ORCID: ORCID
Martyna Gregoriou-Szczepaniak
1
ORCID: ORCID
Ewa Sobczyńska
1
ORCID: ORCID
Kacper Wasilewski
1
ORCID: ORCID

  1. Warsaw University of Technology, Faculty of Civil Engineering, Amii Ludowej 16, 00-637 Warsaw, Poland
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Abstract

One of the principles of green infrastructure (GI) design is a multi-scale approach. Each scale requires taking into account various, differently aggregated GI building blocks. Eco-spatial indices are an important tool for implementing GI. These planning tools make it possible to define the proportion between built-up areas and blue-green areas of a project site. The Ratio of Biologically Vital Area (RBVA) is an indicator that is widely used in Polish spatial planning practice. The objective of this study was to determine how the RBVA is shaped in existing local spatial plans for single- and multi-family residential areas in 20 small and medium-sized towns, and to analyse whether and under what conditions the ratio used would guarantee the implementation of GI. The subject of the study were 814 local spatial plans of residential areas. The authors applied a document analysis method using the READ approach. In addition, statistical analyses of the data obtained and a detailed analysis of three selected plans were carried out. The most common ratio for multi-family residential areas was found to be at the level of 30%, while for single-family residential areas, it was 40%. Statistical analysis showed no significant differences between small and medium-sized towns for single-family residential areas. In turn, considerable differences were observed for multi-family residential areas (RBVA higher in medium-sized towns). The research corroborates that RBVA is a commonly used indicator. However, it guarantees only to a limited extent the possibility of GI implementation at the local scale.
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Authors and Affiliations

Barbara Szulczewska
1
ORCID: ORCID
Małgorzata Blaszke
2
ORCID: ORCID
Renata Giedych
3
ORCID: ORCID
Elżbieta Wójcik-Gront
4
ORCID: ORCID
Paulina Legutko-Kobus
5
ORCID: ORCID
Maciej Nowak
2
ORCID: ORCID

  1. Institute of Urban and Regional Development
  2. West Pomeranian University of Technology in Szczecin, Real Estate Department
  3. Warsaw University of Life Sciences, Department of Landscape Architecture
  4. Warsaw University of Life Sciences, Department of Biometry
  5. Warsaw School of Economics, Department of Public Policy
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Abstract

In order to meet global challenges, cities must be governed efficiently, be compact, and as a result more sustainable, socially coherent, strong and competitive at economic level. Initiatives taken in favour of urban mobility may help in shaping of the global society, putting the main focus on the quality of life, citizens› needs and the principle of sustainable development. These actions aim at focusing citizens› attention on the need to improve air quality, decrease congestion in city’s main streets, but most of all to invest in your own health and physical condition, which increases the level of citizens’ life conditions, and in turn provides the city with considerable economic benefits. However, is it quite a challenge to ensure a sustainable urban mobility pattern which requires a high level of stakeholders’ participation and establishing a detailed complex planning process. The aim of the paper is to present, based on the available literature and data sources and also survey research results, shaping life quality in the aspect of mobility in the context of current megatrends, taking as a case study the CIVITAS DYN@MO project implementation in the city of Gdynia.

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Authors and Affiliations

Adam Przybyłowski
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Abstract

The term roughness is used to describe a specific sound sensation which may occur when listening to stimuli with more than one spectral component within the same critical band. It is believed that the spectral components interact inside the cochlea, which leads to fluctuations in the neural signal and, in turn, to a sensation of roughness. This study presents a roughness model composed of two successive stages: peripheral and central. The peripheral stage models the function of the peripheral ear. The central stage predicts roughness from the temporal envelope of the signal processed by the peripheral stage. The roughness model was shown to account for the perceived roughness of various types of acoustic stimuli, including the stimuli with temporal envelopes that are not sinusoidal. It thus accounted for effects of the phase and the shape of the temporal envelope on roughness. The model performance was poor for unmodulated bandpass noise stimuli.
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Authors and Affiliations

Václav Vencovský
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Abstract

This work presents the co-simulation approach to the analysis of control systems containing detailed models of electromagnetic and electromechanical converters. In this method of analysis the attention is paid to the whole system and not only to its electromagnetic part. The latter is described by equations resulted from the two-dimensional finite element discretisation of the Maxwell equations, and is coupled weakly with the remaining part of the system. The simulation is carried out in Matlab/Simulink environment wherein the coupling is realised through the S-function. Example results regarding simulation of the operation of the control system of an electrical machine and the operation of a power electronic converter are presented and compared with available reference data.
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Authors and Affiliations

Mariusz Jagieła
Tomasz Garbiec

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