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1
Content available Building Information Modelling recognition in ship’s machinery designing and construction
Jabłonka T., Ornat M., Żółkiewski S.
Zeszyty Naukowe Akademii Morskiej w Szczecinie
|
2018
|
nr 56 (128)
23--29
EN
Building Information Modelling (BIM) technology is briefly reviewed in this paper in order to demonstrate the potential application of this methodology in the shipbuilding industry. A properly-created BIM model is a valuable tool for the designers and future users of a given investment. BIM models improve the design and execution process and serve as a tool to maintain and manage any asset. The purpose of this article is to propose to use BIM technology in other construction industries, including the shipbuilding industry. A properly-constructed BIM model of a ship can be used both by the shipyard, as well as by the ship owner or target users. The information contained in the BIM model of the ship can be used to optimize the execution phase in the shipyard, as well as provide valuable assistance to the user of the unit during its operation.
2
Content available Initial research of epoxy and polyester warp laminates testing on abrasive wear used in car sheathing
Baier A., Żółkiewski S.
Eksploatacja i Niezawodność
|
2013
|
Vol. 15, no. 1
37-43
EN
The subject of the work is to present the preliminary investigations over epoxy and polyester warp laminates and its abrasion. The exploitation of various types of containers used in industry is often connected with its usage of composite materials. The composite materials are exposed to tribological wear. Basing on reality and the common tribology wear hazard testing on abrasive wear of composite materials is well-founded and significant in technical and technological point of view. The results of the experimental part of the work are only the substitute of the widely presented researches over composite materials used in the structure of the side of the freight wagons. There are presented the results of the laminates, performed in the laboratory conditions depicting the real work conditions of freight wagons. There were compared the exemplified parameters of the geometrical profile of the structure mass losses of the investigated samples, both the epoxy and polyester and other used hardeners.
PL
Praca dotyczy badań wstępnych ścieralności laminatów o osnowie epoksydowej i poliestrowej. Eksploatacja różnego rodzaju zbiorników do zastosowań przemysłowych często wiąże się z użyciem materiałów kompozytowych narażonych na zużycie tribologiczne. Zasadne jest więc podjęcie istotnych z technicznego i technologicznego punktu widzenia badań ścieralności tych materiałów. Prezentowane w pracy wyniki badań eksperymentalnych są jedynie częścią szeroko zakrojonych badań materiałów kompozytowych mających zastosowanie w budowie burt wagonów towarowych. Przedstawiono wyniki badań laminatów, przeprowadzonych na autorskim stanowisku laboratoryjnym do porównawczego badania zużycia ściernego odzwierciedlającego warunki pracy wagonu towarowego. Zestawiono przykładowe parametry struktury geometrycznej profilu oraz ubytki masowe badanych próbek zarówno w przypadku próbek epoksydowych jak i poliestrowych oraz różnych, zastosowanych utwardzaczy.
3
Content available Badanie zużycia ściernego materiałów kompozytowych
Baier A., Żółkiewski S.
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
|
2011
|
Nr 1
21-36
PL
Badanie zużycia ściernego należy do jednych z najistotniejszych badań materiałów mających zastosowanie w powierzchniach styku z innymi tworzywami, tym samym narażonych na nadmierne zużycie ścierne. Badane w pracy próbki kompozytowe, mające znaleźć zastosowanie w budowie burt wagonów towarowych, wykonano z laminatów epoksydowych i poliestrowych. Tematykę pracy ograniczono do samego badania ścieralności, co jest oczywiście jedynie wstępem do kompleksowych badań materiałów do tego typu zastosowań. W pracy przedstawiono propozycję stanowiska laboratoryjnego do porównawczego badania zużycia ściernego oraz przykładowe wyniki badań na wybranych materiałach kompozytowych.
EN
Grinding testing is one of the most important tests of materials applied for contact with other elements. The subject matter is limited to grinding testing and this is only the beginning of complex testing of composite materials. In this article, the tested composite materials are epoxide and polyester laminates. The selected materials can be put into use in the wagon sides construction. This article includes a proposal for a laboratory stand for comparative grinding testing and presents sample test results.
4
Content available Model dźwigu osobowego z układem sterowania programowalnym logicznie
Jezierski P., Lepszy A., Noworyta K., Nagórny A., Żółkiewski S.
Wybrane Problemy Inżynierskie
|
2011
|
nr 2
171-176
PL
W artykule przedstawiono model zlecenia produkcyjnego stanowiącego podstawę integracji systemów Proedims i KbRS w zakresie harmonogramowania produkcji dyskretnej. Model zlecenia umożliwia planowanie produkcji złożonych wyrobów posiadających wielopoziomowe struktury procesów technologicznych zarówno w systemach o konfiguracji przepływowej jak i gniazdowej z maszynami równoległymi. W przyjętym modelu systemu produkcyjnego oraz zlecenia wyszczególniono etapy decyzyjne wymagane przy budowie harmonogramu. Opisano sposób współpracy przy wymianie danych pomiędzy omawianymi systemami.
EN
The paper presents the model of a production order, which is the basis of Proedims and KbRS software systems integration, used in scheduling of discrete manufacturing systems. The model enables planning of production orders for complex products with multi-level structure of the processes in flow shop and job shop production system configuration with parallel machines. Required decision-making stages for schedule construction of the given model of the production system and production order were presented. Principles of cooperation in exchanging data between Proedims and KbRS were discussed.
5
Content available remote Strength tests of sandwich composite materials connected by means of screw joints
Żółkiewski S.
Journal of Achievements in Materials and Manufacturing Engineering
|
2011
|
Vol. 49, nr 2
577--584
EN
Purpose: of this thesis is to present the exemplary results of strength tests of sandwich composite materials consisted of the laminate plate and the metal sheet plate. Design/methodology/approach: The strength tests were carried out in the laboratory stand by means of the electric resistance wire strain gauge. The laboratory stand was specially designed for the purpose of testing composite materials. Findings: The results are presented in the form of graphs. In graphs the maximal and minimal strains in the time function are presented. Research limitations/implications: The tests were carried out for different configurations of the samples. The specimens were prepared as the samples with the external steel plate or with the steel plate arranged among the laminate layers. Practical implications: The experimental tests are still necessary in analysis of the composite materials. The real parameters of the samples should be determined in an experimental way. However, the numerical computer simulation of the composite materials is possible e.g. in Unigraphics software, but modelled in the computer environment composites have very often some errors and results of simulation is not proper. Originality/value: The sandwich composite materials were tested in the laboratory stand by means of extensometers. The results could be used in designing of mechanical parts and mechanisms made of the laminate connection in the steel plate by means of screws. The fundamental mechanical properties of such a type materials were derived.
6
Content available Modelowanie i symulacja systemów automatyki z wykorzystaniem interfejsu zdalnej komunikacji
Świder J., Żółkiewski S., Kempa B.
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
|
2010
|
Nr 4
290-305
PL
Praca dotyczy zagadnienia związanego ze zdalną komunikacją z systemami automatyki przemysłowej. Zaprezentowano eksperymentalne stanowisko laboratoryjne z zamodelowaną wirtualną linią produkcyjną. Praca ma charakter poglądowy i jest praktyczną, szczególną realizacją znanych z literatury, metod komunikacji stosowanych w automatyce przemysłowej. Opisano podstawowe parametry użytych podzespołów oraz ich konfigurację do pracy w wybranym układzie sterowania. Skonfigurowano system do komunikacji pomiędzy użytkownikiem a sterowanym systemem automatycznym. Wykorzystano i skonfigurowano wejścia i wyjścia fizyczne sterownika S7-224XP, panel operatorski, przykładowy interfejs zdalnej komunikacji (bramkę GSM i telefon użytkownika) oraz system wizualizacji za pomocą komputera PC. Do wymiany informacji sterujących i zarządzających użyto trybu PPI, Freeport, protokołu TCP/IP, standardu OPC oraz modułu GSM. W oprogramowaniu stanowiska wykorzystano środowiska programistyczne STEP 7-MicroWin 4.0, WinCC flexible 2007, WinCC 2007 RT, PC-Access 1.0 oraz MS Excel 2003. Umożliwiono użytkownikowi nadzór nad realizacją procesu technologicznego niezależnie od odległości, jaka dzieli go od układu sterowania.
EN
This article considers the remote communication problem for industrial automation systems. It presents an experimental laboratory stand of modelled virtual production lines. It describes fundamental parameters and the configuration process of used automation devices and elements. This article is a practical realisation of popular communication methods of industrial automation. The communication system between the user and the controlled automated system is configured. Physical inputs and outputs of S7-224XP, a control panel, a sample remote communication interface (the GSM gate and the cordless cellular telephone) and a visualisation system by the PC computer are used and configured. For controlling and managing data exchange, the PPI mode, the Freeport, the TCP/IP protocol, OLE for process control and the GSM module are used. The programming environment STEP 7-MicroWin 4.0, WinCC flexible 2007, WinCC 2007 RT, PC-Access 1.0 and MS Excel 2003 are used in the stand’s interface. The user can control the technological process irrespective of distance from the control system.
7
Content available Tensometryczne pomiary odkształceń w poszczególnych warstwach laminatów wzmacnianych włóknami aramidowymi
Schmidt S., Jaros W., Żółkiewski S.
Wybrane Problemy Inżynierskie
|
2010
|
nr 1
98-100
PL
W niniejszej pracy porównano dwie metody badawcze elementów kompozytowych, stosowanych w badaniach wytrzymałościowych. W pierwszej metodzie - doświadczalnej, wykorzystano tensometry oporowe oraz wzmacniacz tensometryczny niemieckiej firmy Hottinger Baldwin Messtechnik MGCPlus AB22A i oprogramowanie Catman. Natomiast do badań modelowych wykorzystano zaawansowany program graficzny Unigraphics NX 7.
EN
This paper presents deformations tests of particular layers of laminates reinforced with Kevlar material. In order to carry out the examination a sample made of four layers of above mentioned material was created. For measuring the deformation, the strain gauges were used. They were placed between layers of the laminate during its manufacture. On the basis of obtained results Young's modulus of the sample was determined.
8
Content available Pomiary odkształceń laminatu wzmacnianego matami z włókna szklanego
Paździor S., Żółkiewski S.
Wybrane Problemy Inżynierskie
|
2010
|
nr 1
90-92
PL
W pracy przedstawiono metodologię badań elementów konstrukcyjnych wykonanych z kompozytów laminarnych. Wykonano próbkę z laminatu wzmacnianego włóknem szklanym oraz zmierzono wartość jej odkształcenia przy różnym obciążeniu za pomocą tensometrów elektrycznych foliowych. W celu weryfikacji wyników utworzono model próbki, a następnie, stosując metodę elementów skończonych zmierzono jej odkształcenia. Symulację przeprowadzono w oprogramowaniu Unigraphics NX przy użyciu modułu Advanced Simulation.
EN
In this work the methodology of structural elements tests made of laminar composites was presented. In order to do the research a sample made of laminate reinforced with glass fiber was created. Afterwards, the measurements of its deformation with different loads with electrical foil strain gauges were done. To verify the results there was performed a virtual model of the sample and its FEM analysis. The Finished Element Method simulation was carried out in the Unigraphics NX application by the Advanced Simulation module.
9
Content available Modelowanie materiałów kompozytowych wzmacnianych włóknami ciągłymi w programie Unigraphics NX 7
Jaros W., Schmidt S., Żółkiewski S.
Wybrane Problemy Inżynierskie
|
2010
|
nr 1
54-57
PL
Szybki rozwój materiałów kompozytowych, wzmacnianych włóknami ciągłymi wymusił rozwój programów do modelowania oraz przeprowadzania symulacji wytrzymałościowych elementów o tej strukturze. Program Unigraphics NX7 pozwala w łatwy i przejrzysty sposób nadać zamodelowanemu wcześniej elementowi strukturę laminatu. Dużą zaletą programu jest to, że pozwala on zarówno na zamodelowanie kompozytu o pojedynczej warstwie, jak i laminatu wielowarstwowego. W pracy przedstawiono sposób modelowania laminatów za pomocą narzędzia Laminate Modeler, zawartego w module Advanced Simulation.
EN
The fast development of fiber-reinforced polymers was the reason of evolution of computer aided engineering software. This paper presents methodology of modeling laminates using NX Laminates Composites tool placed in simulation module of advanced graphical program Unigraphics NX7. Developed programs enable quickly and easy creation of finite element models representing laminate composite designs. The big advantage of the program is that it allows both the modeling of composite single-layer and multi-layer laminate. The paper presents a modeling method using the laminate Laminate Modeler tool, included in the Advanced Simulation Module.
10
Content available Analiza wytrzymałościowa materiałów kompozytowych wzmacnianych włóknami ciągłymi z zastosowaniem zaawansowanego programu graficznego Unigraphics NX7
Skalski M., Reczek M., Żółkiewski S.
Wybrane Problemy Inżynierskie
|
2010
|
nr 1
101-104
PL
Celem pracy jest przedstawienie metodyki badań wytrzymałościowych materiałów o strukturze kompozytowej. W pracy zawarto opis wykonania analizy wytrzymałościowej modelu kompozytu w programie Unigraphips NX7. Analizę wytrzymałościową przeprowadzono z wykorzystaniem metody elementów skończonych.
EN
The paper presents a methodology for the strength analysis of composite materials. The paper contains a strength analysis description of the composite model in the Unigraphics NX7 application. Strength analysis was conducted using FEM method.
11
Content available remote Komputerowe wspomaganie analizy dynamicznej elementów konstrukcyjnych o strukturze kompozytowej
Żółkiewski S.
Górnictwo Odkrywkowe
|
2010
|
R. 51, nr 4
40-44
PL
Artykuł zawiera opis metody komputerowego wspomagania analizy dynamicznej elementów konstrukcyjnych o strukturze kompozytowej. W pracy przedstawiono przykładowe wyniki uzyskane na drodze analizy metodą elementów skończonych w środowisku Unigraphics NX dotyczące wybranego elementu konstrukcyjnego. Porównano wyniki uzyskane metodą symulacji komputerowej z wynikami uzyskanymi na drodze empirycznej w warunkach laboratoryjnych.
EN
In this work the method of computer aided dynamic analysis of composite material structural components was described. In the thesis sample results for structural components obtained by the finite element method in Unigraphics NX environment were presented. Results obtained by the computer simulation method and results obtained in laboratory terms on empirical way were compared.
12
Podatność dynamiczna obustronnie podpartej belki z tłumieniem w ruchu unoszenia
Żółkiewski S.
Modelowanie Inżynierskie
|
2009
|
T. 7, nr 38
321-328
PL
Podatność dynamiczna jest jedną z szeroko stosowanych metod analizy dynamicznej [1-3, 6-7], dzięki której możliwe staje się określenie wzajemnych relacji pomiędzy amplitudą drgań a częstotliwością wymuszenia. W pracy zamodelowano układ obustronnie podpartej belki, znajdującej się na obrotowym stole, wraz z uwzględnieniem w modelu sił tłumiących amplitudy przemieszczenia. Belka znajduje się na obrotowym stole obracającym się ze stałą prędkością kątową. Rozważany ruch ograniczono do ruchu płaskiego, natomiast belkę do belki o przekroju symetrycznym, stałym na jej całej długości.
EN
One of the most widely used method of dynamical analysis is the dynamical flexibility method [1-3, 6-7], thanks to this method we can determine mutual relations between an amplitude of vibrations and a frequency of load. In this thesis there was modeled the two-sided supported beam being on the rotational table. In this model there were took into consideration the damping forces. The beam is on the rotational table that rotates with constant angular velocity. Considered motion is limited to plane motion and the beam has a symmetrical cross-section constant on its whole length.
13
Content available remote Longitudinal vibrations of mechanical systems with the transportation effect
Buchacz A., Żółkiewski S.
Journal of Achievements in Materials and Manufacturing Engineering
|
2009
|
Vol. 32, nr 1
29-36
EN
Purpose: this thesis purpose is a new way of modelling systems working with high speeds of mechanisms. Systems are analyzed with taking into consideration the rotational movement and with criterions of using materials with high flexibility and high precision of work. The dynamical analysis was done with giving into consideration the interaction between working motion and local vibrations. During the motion a model is loaded by longitudinal forces. Design/methodology/approach: equations of motion were derived by the Lagrange method, with generalized coordinates and generalized velocities assumed as orthogonal projections of individual quantities of the rod and manipulators to axes of the global reference frame. Findings: the model of longitudinally vibrating systems in plane motion was derived, after that the model can be transformed to the dynamical flexibility of these systems. Derived equations are the beginning of analysis of complex systems, especially can be used in deducing of the substitute dynamical flexibility of multilinked systems in motion. Research limitations/implications: mechanical systems vibrating longitudinally in terms of rotation were considered in this thesis. Successive problem of the dynamical analysis is the analysis of systems in spatial transportation and systems loaded by transversal forces. Practical implications: effects of presented calculations can be applied into machines and mechanisms in transportation such as: high speed turbines, wind power plant, water-power plants, manipulators, aerodynamics issues, and in different rotors etc. Originality/value: the contemporary analysis of beams and rods were made in a separate way, first working motion of the main system and next the local vibrations. A new way of modelling took into consideration the interaction between those two displacement. There was defined the transportation effect for models vibrating longitudinally in this paper.
14
Content available remote Dynamical flexibility of the free-free damped rod in transportation
Żółkiewski S.
Journal of Achievements in Materials and Manufacturing Engineering
|
2009
|
Vol. 35, nr 1
71-78
EN
Purpose: of this thesis is derivation of dynamical flexibility of the free-free rod system in transportation. The well-known problem of dynamical analysis of systems in rotational transportation was developed in this work to systems with taking into consideration damping forces. Design/methodology/approach: The dynamical flexibility method was used to analysis of the free-free rod’s vibrations. Mathematical models derived in previous articles were used to derivation of the dynamical flexibility. Considerations were done by the Galerkin’s method. Findings: There were considered systems in rotational motion treated in this thesis as main transportation. Dynamical characteristics in form of dynamical flexibility as function of frequency and mathematical models were presented in this work. Research limitations/implications: Analyzed systems were simple linear homogeneous not supported rods. Working motion was limited to plane rotational motion. Future works would consider complex systems and nonlinearity. Practical implications: of derived dynamical characteristics can easily support designing process and can be put to use in stability analysis and assigning stability zones. Thank to derived mathematical models the numerical applications can be implemented and some calculations can be automated. Originality/value: Analyzing models are rotating flexible free-free rods with taking into consideration the damping forces.
15
Content available remote Analysis of complex damped longitudinally vibrating systems in transportation
Żółkiewski S.
Journal of Achievements in Materials and Manufacturing Engineering
|
2009
|
Vol. 36, nr 2
176-183
EN
Purpose: of this thesis is dynamical analysis of complex systems in transportation. Analyzed systems are composed of rotatable rods. Transportation was defined as main motion of rods and the overall system. Design/methodology/approach: The dynamical flexibility method is a leading methodology for dynamic analysis of considered systems. For solving equations of motion to dynamical flexibility the Galerkins method was used. Findings: There were considered systems consisted of rods. Rods are rotated first round the origin of global reference frame simultaneously, the attached point and further ones round the end of the previous one. Charts of dynamic characteristics, in a form of dynamic flexibility as function of frequency and mathematical models were shown in this article. Research limitations/implications: All multi-body systems components were simple linear homogeneous rods, the first one as the fixed rod and next ones treated as free-free rods. Transportation was limited to plane rotational motion round the Z axis of global reference frame. Future works would consider complex systems with geometrical and physical nonlinearity. Practical implications: of presented analysis are derivation of multi-body rod systems of dynamic flexibility. Dynamic flexibility can be used in designing process. Presented mathematical models may be used for implementation in numerical applications and for automating some calculations in this type of systems. Originality/value: In the mathematical model the damping forces were taken into consideration and the dynamic flexibility of complex systems was derived.
16
Content available remote Dynamical analysis of the free-free damped transverse vibratory beam in transportation
Żółkiewski S.
Archives of Control Sciences
|
2009
|
Vol. 19, no. 4
423-436
EN
One of the most popular method of vibrating systems analysis is dynamical flexibility method. This method makes possible the assignment of stability bands. The thesis is applied to the free-free damped beam systems analysis. The beam is loaded by transversal unitary force in accordance with a dynamical flexibility definition. In a mathematical model Coriolis forces, centrifugal forces and damping forces were took into the consideration. The damping forces enable active vibration control and can change dynamical characteristics of the system.
17
Model matematyczny obracających się tłumionych belek podatnych
Żółkiewski S.
Modelowanie Inżynierskie
|
2008
|
T. 5, nr 36
327-334
PL
W literaturze znane są pozycje opisujące sposób modelowania układów technicznych znajdujących się w trakcie wykonywania ruchu obrotowego [1-8]. Niniejsza praca jest rozszerzeniem tematyki związanej z analizą wpływu ruchu układu na model drgań o uwzględnienie w modelu matematycznym elementów związanych z tłumieniem. Przedstawiony w opracowaniu model jest wyprowadzeniem równań ruchu tłumionych belek podatnych, a dodatkowe uwzględnienie tłumienia jest krokiem, dzięki któremu możliwe będzie zbliżenie proponowanego modelu do aplikacji rzeczywistych.
EN
In the literature there are known positions described the way of modelling of technical systems in rotational motion [1-8]. This thesis is a development of subject matter connected with the analysis of effect of system’s motion on the model of vibrations. This development is connected with taking into account elements of damping in the mathematical model. Presented model in this article is a derivation of equations of motion of damped flexible beam systems. Additionally taking into consideration the damping of systems is a step to bringing closer together of the proposed model and actual applications.
18
Content available remote Equations of Motion of the Rotating Damped Fixed Beam System
Żółkiewski S.
Machine Dynamics Problems
|
2008
|
Vol. 32, No. 3
126-132
EN
This thesis applies to the problem of rotating beam system. The system is fixed in meaning of boundary conditions and should be treated as the fixed beam onto the rotational table. In the mathematical model there were considered the damped elements. There were presented mathematical models as equations of motion of analyzed system under known boundary conditions and there were took into consideration the transportation effect and damping forces. The transportation effect was defined as the interaction between main motion and local vibrations of systems.
19
Content available remote Dynamical Flexibility of the Damped Rod System in Transportation
Żółkiewski S.
Machine Dynamics Problems
|
2008
|
Vol. 32, No. 1
121-128
EN
One of the most popular method of analyzing vibrations and dynamical states of systems is the method of dynamical flexibility. There is considered the system of damped rod in rotational transportation. The dynamical flexibility was derived from previously recognized equations of motion. Dynamical characteristics were presented in form of charts of attenuation depending on frequency. There were compared the known characteristics of stationary systems with characteristics of systems in rotational transportation without the damping and also with characteristics of rotating systems with taking into consideration the damping.
20
Content available remote Modelling of dynamical systems in transportation using the modyfit application
Żółkiewski S.
Journal of Achievements in Materials and Manufacturing Engineering
|
2008
|
Vol. 28, nr 1
71-74
EN
Purpose: of this paper is to present a numerical application for analysis and modelling dynamical flexible systems in transportation. This application enables controlling and regulation of rotating systems with the interaction between the working motion and local vibrations of elements. Design/methodology/approach: Numerical calculations are based onto mathematical models derived in other publications. The objectives of making this application were connected with emerging wants of analyzing and modelling rotating systems with taking into consideration relation between main and local motions. Theoretical considerations were made by classical methods and by the Galerkin's method. Findings: In way of increasing the value of angular velocity we can observe creating additional poles in the characteristic of dynamical flexibility and after increasing it is evident that created modes are symmetrically propagated from the original mode. It is evident, instead of modes there are created zeros. Research limitations/implications: Analyzed systems were limited to simple linear type beams and rods. Main motion is plane motion. Future research should consider complex systems and nonlinearity. Practical implications: of the application are possibilities of numerical analysis of beam and rod systems both the free-free ones and fixed ones. Engineers thank to this application can derived the stability zones of analyzed systems and can observe eigenfrequencies and zeros in the way of changing the value of angular velocity. In practice we should implement more adequate models such as those presented in this paper. Originality/value: This paper consist the description of the application called the Modyfit. The Modyfit is an implementation of derived models in a numerical environment. Those models are rotating flexible systems with consideration the transportation effect.
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