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  1. 7 Przegląd Elektrotechniczny
  2. 2 Applied Computer Science
  3. 2 Chemical and Process Engineering
  4. 2 Journal of KONES
  5. 2 Management and Production Engineering Review
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  1. 2 2022
  2. 1 2020
  3. 10 2019
  4. 7 2018
  5. 5 2017
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  1. 4 Filipowicz M.
  2. 3 Sornek K.
  3. 2 Anand P.
  4. 2 Boryga M.
  5. 2 Brumerčík F.
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1
Symulacja dynamiczna koncepcyjnego silnika spalinowego
100%
Czajka M. , Böhm M.
Transport Przemysłowy i Maszyny Robocze
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2017
|
tom Nr 1
66--69
PL
Silniki towarzyszą ludzkości od ponad 150 lat. Nie są wyłącznie maszynami przetwarzającymi energię chemiczną, ale również zderzeniem się wizji inżyniera, możliwości technologicznych i oczekiwań konsumenta. Silniki są zbiorem współpracujących ze sobą elementów i układów, które wzajemnie na siebie oddziałują. Zmiany temperatury, sił działających na układ, drgania, naprężenia, odkształcenia materiału, tarcie pomiędzy elementami, niedokładności montażu i obróbki mają wpływ na jego pracę i żywotność. Dawniej, aby zbadać funkcjonowanie silnika, tworzono jego prototyp. Obecnie odchodzi się od tego na rzecz symulacji komputerowych.
EN
The authors have performed a dynamic simulation for a concept part of a combustion engine with appropriate methods and initial calculations. The model for simulation was taken out of the concept CAD model that was created on the grounds of calculations in the Inventor software environment. In the simulation process forces were included that impact the piston, and gravity was also taken into account. Results are shown in graphs and tables and have been compared to results obtained with the use of classic computation methods. Some of them have correlated with results received from classic calculations.
2
Content available Modelling and simulation of repeated charging/discharging cycles for selected nickel-cadmium batteries
100%
Chmielewski A. , Szurgott P.
Journal of KONES
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2015
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tom Vol. 22, No. 1
55--62
EN
The main aim of the paper is to present a developed methodology of simulation of the energy efficiency of a selected energy storage unit. The authors focused their actions on batteries that could be the base for an energy storage system possible to apply in a modernized hybrid-shunting locomotive. Three different nickel-cadmium batteries were selected as representatives for the study. Simulation was focused on repeated cycles of charging and discharging the batteries. The simulation model generally consists of three main components: a specified load cycle, a dynamic model of the DC electrical machine and a model of the Ni-Cd battery. The input data for the battery model is based mostly on the parameters provided by the manufacturer data sheets. However, an internal resistance had to be measured for each battery. Conducted simulations provided information about the electromotive force, state of charge, an average efficiency of the battery, as well as the temperature changes during the cycle. The proposed approach to the battery simulation can be also applied for the loading cycles similar to those that occur during the actual operation of the locomotive. The current study is a part of the project focused on modernization of the diesel-electric shunting locomotive to the hybrid one.
3
Content available Design and Dynamics Modeling for Electric Vehicle
100%
Tomasikova M. , Brumerčík F. , Nieoczym A.
Applied Computer Science
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2017
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tom Vol. 13, no 3
19--31
EN
This paper descript software for vehicle simulation and mathematical models that describe the motion of the vehicle. A dynamic simulation model of vehicle was developed using Matlab/Simulink and SimDriveline toolbox. The model has a configurable structure that is suitable to simulation with multiple levels. The powertrain system model developed using Simulink and SimDrivline could also be used as a generic, modular and flexible vehicle modeling platform to support the integration of powertrain design and control system optimization.
4
Content available Dynamic analysis and experiment of underactuated double-pendulum anti-swing device for ship-mounted jib cranes
100%
Wang J. , Liu K. , Wang S. , Chen H. , Sun Y. , Niu A. , Li H.
Polish Maritime Research
|
2022
|
tom nr 4
145--154
EN
This paper proposes a three degrees of freedom parallel anti-swing method by the main and auxiliary cables to address the problems related to underactuated double-pendulum anti-swing for a ship-mounted jib crane. By analysing the dynamic coupling relationship between the swing of the hook and the payload, it seeks to establish an accurate dynamic model of the anti-swing device under the ship’s rolling and pitching conditions, and discusses the influence of ship excitation, the crane state, load posture and anti-swing parameters on the in-plane and out-of-plane swing angles. The analysis shows that the primary pendulum reduces the in-plane angle by 90% and the out-of-plane angle by 80%, the in-plane angle of the secondary pendulum is reduced by 90%, and the out-of-plane angle is reduced by 80%. The reliability of the simulation data is verified through experiments.
5
Dynamic simulations of geological CO2 storage with ECLIPSE*
100%
Adushita Y. , Pekot L. J. , Hurter S.
Prace Naukowe Instytutu Nafty i Gazu
|
2010
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tom nr 170 wyd. konferencyjne
219--228
EN
Dynamic reservoir modeling is one of the principal tools in technical performance evaluation of a CO2 storage project. It allows the evaluation of effective capacity (sweep efficiency), injectivity, the plume footprint, as well as the construction of injection scenarios, supports the construction of the monitoring programs and describes possible long-term disposition of stored CO2. The quality of containment under dynamic conditions can also be assessed within the model, by evaluating whether the pressure evolution at the caprock are lower than the capillary entry pressure or fracturing pressure. The dynamic model incorporates the definition of reservoir boundaries (including the aquifer volumes attached), the fluid and reservoir properties are defined, the pressure and temperature observed, the fluid saturations, as well as the relative permeability in order to have a good representation of the initial and dynamic reservoir conditions. Dynamic simulations with ECLIPSE software, which is a commercial tool used very extensively in the oil and gas industry, are presented here. Over the past few years, specific compositional code features have been developed and tested to model the CO2 storage in saline aquifers as well as in depleted oil and gas reservoirs. This specific code computes physical properties of pure and impure CO2 at various pressures and temperatures. It also represents mutual solubility between CO2 and water, namely the dissolution of CO2 into the water and the vaporization of water into the CO2 rich phase, adjusting viscosity and density of the fluids accordingly. One of the options also allows the representation of drying out of the formation and salt precipitation triggered by saturated concentrations developing within the remaining brine in the near wellbore area. Thermal effects of injecting fluids of one temperature into a reservoir of different temperature can be obtained. These functionalities allow simulations to provide a good representation of dynamic reservoir behavior in various CO2 storage cases. A set of synthetic model cases have been constructed to provide examples of reservoir simulations of a CO2 storage project. The result of these simulations illustrate some of the specific phenomenon that might occur in CO2 injection, such as mutual solubility, salt precipitation, change in pH, gravity effect, as well as the temperature front propagation due to a cold injection stream. The contribution of each trapping mechanism is also described in one of the examples.
6
Content available Numerical Analysis of Roller Bearing
100%
Kohár R. , Brumerčík F. , Lukáč M. , Nieoczym A.
Applied Computer Science
|
2016
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tom Vol. 12, no 1
5--16
EN
The aim of this paper is to detail the creation of a large tapered roller bearing model with flexible body cages in the Adams program suite for subsequent dynamic analysis and to obtain information about kinematic and dynamic relationships of steel and plastic cages under various operating conditions. The bearing model was made to closely resemble its real-life counterpart, which allows us to estimate load conditions, dynamic conditions of individual bearing parts and interactions between them.
7
Content available Some aspects of dynamic riveting simulations
100%
Szymczyk E. , Jachimowicz J. , Puchała K.
Journal of KONES
|
2012
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tom Vol. 19, No. 1
423-430
EN
Riveting is a commonly used (especially in aircraft structures) method of joining metal and composite components. The methods of forming solid shank rivets can be classified in two types: static and dynamic. The static method is the most efficient one. Regrettably, its application is limited. A popular upsetting tool used in an aircraft is a pneumatic riveter. The rivet driving requires a few hammer strokes. The total stress in a riveted joint depends on the residual and applied stress. Residual post-riveting stress fields are widely accepted to have a beneficial influence on the fatigue life of aircraft structures. The analysis is carried out for a solid mushroom rivet (made of PA25 alloy) joining two sheets (made of 2024T3 alloy). Nonlinear dynamic simulations of the upsetting process are carried out. Simulation of the riveting process is significantly influenced by a material model. The numerical calculations are performed for three different cases of upsetting described by the formed rivet head diameters 1.4d, 1.5d and 1.6d, respectively. The rivet head diameter and, consequently, the residual stress state depend on hammer stroke energy. It has a significant influence on a plastic region around the rivet hole, whereas the influence of a number of strokes can be neglected. The strain rate in both local and global (average) formulation is analysed in the paper. For one hammer stroke, the global strain rate of the rivet shank is about 1.0 thousand per second. The local strain rate is about two times greater than the global one, so a strain rate factor has an effect on the residual stress state. For a few hammer strokes, the strain rate is lower than for one stroke; however, it increases a little in each stroke. The hole deformation can be treated as a function of the internal energy of the sheet. The lower total energy of the part the greater influence of the strain rate on the internal energy is observed.
8
Content available Analiza sterowania wałkiem krzywkowym w autorskim silniku spalinowym
100%
Bajerlein M. , Daszkiewicz P. , Frąckowiak D. , Domański M. , Stobnicki P.
Autobusy : technika, eksploatacja, systemy transportowe
|
2018
|
tom R. 19, nr 12
58--61
PL
W ramach pracy w programie Autodesk Inventor stworzono model silnika Szymkowiaka wraz z jego zmodyfikowaną wersją z koncepcyjnym wahaczem. Następnie przeprowadzono symulację dynamiczną obu układów korbowo-tłokowych dla różnych stopni sprężania sterowanych wałkiem krzywkowym. Uzyskane wyniki symulacji dynamicznej wykorzystano do badania procesów zachodzących podczas procesu spalania w programie AVL Fire. Symulację przeprowadzono dla jednakowych warunków początkowych.
EN
For the simulation there was created model of Szymkowiak' sengine and it's version with modified swingarm, in Autodesk Inventor. Dynamic symulation of piston movement has been made for both engines with selected compression ratios. Results of piston movement has been used to create simulation of combustion process in AVL Fire. Simulation for both engines has been made for the same boundaryconditions.
9
Content available Testing virtual prototype of a new product in two simulation environments
100%
Łukaszewicz K.
Management and Production Engineering Review
|
2019
|
tom Vol. 10, No. 3
124–-135
EN
This paper is a case study conducted to present an approach to the process of designing new products using virtual prototyping. During the first stage of research a digital geometric model of the vehicle was created. Secondly it underwent a series of tests utilising the multibody system method in order to determine the forces and displacements in selected construction nodes of the vehicle during its movement on an uneven surface. In consequence the most dangerous case of loads was identified. The obtained results were used to conduct detailed strength testing of the bicycle frame and changes its geometry. For the purposes of this case study two FEA software environments (Inventor and SolidWorks) were used. It has been confirmed that using method allows to implement the process of creating a new product more effectively as well as to assess the influence of the conditions of its usage more efficiently. It was stated that using of different software environments increases the complexity of the technical process of production preparation but at the same time increases the certainty of prototype testing. The presented example of simulation calculations made for the bicycle can be considered as a useful method for calculating other prototypes with high complexity of construction due to its systematized character of chosen conditions and testing procedure. It allows to verify the correctness of construction, functionality and perform many analyses, which can contribute to the elimination of possible errors as early as at the construction stage.
10
Content available Testing virtual prototype of a new product in two simulation environments
89%
Łukaszewicz K. , Łukaszewicz K.
|
|
tom 10
|
nr 3
11
Content available remote OPTIMAL STATE ESTIMATION AND ON-LINE OPTIMISATION OF A BIOCHEMICAL REACTOR
88%
Satya E. J. , Anand P. , Venkateswarlu C.
Chemical and Process Engineering
|
2013
|
tom 34
|
nr 4
449-462
EN
An on-line optimising control strategy involving a two level extended Kalman filter (EKF) for dynamic model identification and a functional conjugate gradient method for determining optimal operating condition is proposed and applied to a biochemical reactor. The optimiser incorporates the identified model and determines the optimal operating condition while maximising the process performance. This strategy is computationally advantageous as it involves separate estimation of states and process parameters in reduced dimensions. In addition to assisting on-line dynamic optimisation, the estimated time varying uncertain process parameter information can also be useful for continuous monitoring of the process. This strategy ensures that the biochemical reactor is operated at the optimal operation while taking care of the disturbances that are encountered during operation. The simulation results demonstrate the usefulness of the two level EKF assisted dynamic optimizer for on-line optimising control of uncertain nonlinear biochemical systems.
12
Content available Modelling of temporary naval ships berths on a floating pier - port of koper case study
88%
Androjna A. , Perkovič M. , Vidmar P.
Annual of Navigation
|
2022
|
tom No. 28
1--13
EN
The paper presents an analysis of the modelling of temporary naval ships berths on a floating pier in the port of Koper. For this case study, traffic flow, weather conditions, navigation channel and a proposed floating pier were investigated. Energy calculations for berthing were performed using the deterministic method and dynamic simulation, supported by manoeuvring simulations on the Transas/Wartsila NTPro 5000 simulator of two current and two proposed naval vessels under all weather conditions. The results will be used in practise to determine the design, safety of navigation and manoeuvring in a waterway towards a non-existing floating pier in the port of Koper. The establishment of the temporary naval ships berths is intended to improve and alleviate the lack of ship berths for the Slovenian Navy.
13
Content available Performance comparison of different control strategies for heat exchanger networks
88%
Mahitthimahawong S. , Chotvisut Y. , Srinophakun T.
Polish Journal of Chemical Technology
|
2018
|
tom Vol. 20, nr 1
13--20
EN
In this article, the dynamic responses of heat exchanger networks to disturbance and setpoint change were studied. Various control strategies, including: proportional integral, model predictive control, passivity approach, and passivity-based model predictive control were used to monitor all outlet temperatures. The performance of controllers was analyzed through two procedures: 1) inducing a ±5% step disturbance in the supply temperature, or 2) tracking a ±5°C target temperature. The performance criteria used to evaluate these various control modes was settling time and percentage overshoot. According to the results, the passivity-based model predictive controllers produced the best performance to reject the disturbance and the model predictive control proved to be the best controller to track the setpoint. Whereas, the ensuing performance results of both the PI and passivity controllers were discovered to be only acceptable..
14
Content available Dynamic analysis of a sugar beet lifter
75%
Boryga M. , Kołodziej P.
Journal of Research and Applications in Agricultural Engineering
|
2019
|
tom Vol. 64, nr 2
19--24
EN
In the paper presents the way of model 3D creation, stages of preparation as well as results of dynamic simulations of the sugar beet lifter. In the computer simulations kinematic input and assigned values of the forces acting on the lifter share were taken into account. The presented design way enabled to estimate possibilities of applying the Autodesk Inventor program as a tool used for both creation and verification of virtual sugar beet lifter prototype.
PL
W pracy przedstawiono sposób tworzenia modelu 3D, etapy przygotowania oraz wyniki symulacji dynamicznej wyorywacza kombajnu do buraków cukrowych. W komputerowej symulacji uwzględniono wymuszenie kinematyczne i zadane wartości sił działających na lemiesz wyorywacza. Przedstawiony sposób projektowania pozwolił na ocenę możliwości zastosowania programu Autodesk Inventor jako narzędzia służącego zarówno do tworzenia jak i weryfikacji wirtualnego prototypu wyorywacza buraków cukrowych.
15
Content available A field-circuit model of the hybrid magnetic bearing
75%
Wajnert D.
Archive of Mechanical Engineering
|
2019
|
tom Vol. LXVI, nr 2
191--208
EN
The paper presents a simulation model of the hybrid magnetic bearing dedicated to simulations of transient state. The proposed field-circuit model is composed of two components. The first part constitutes a set of ordinary differential equations that describes electrical circuits and mechanics. The second part of the simulation model consists of parameters such as magnetic forces, dynamic inductances and velocity-induced voltages obtained from the 3D finite element analysis. The MATLAB/Simulnik software was used to implement the simulation model with the required control system. The proposed field-circuit model was validated by comparison of time responses with the prototype of the hybrid magnetic bearing.
16
Content available remote Stable algorithm to simulate dynamic undercarriage loads of tracked vehicles
75%
Hartleb J.
Archives of Civil and Mechanical Engineering
|
2011
|
tom Vol. 11, no 4
867-874
EN
The loads acting on the undercarriage of a tracked vehicle are composed from multiple operation situations which result in dynamic loads. These loads are influenced by different variables and also combinations of these. Within this paper a method is described to simulate the loads acting on the undercarriage taking into consideration the multitude of critical combinations of influencing variables. Priority is given to the description of a calculation algorithm which allows to dynamically simulate how an excavator runs over an obstacle considering numerous parameters like obstacle height, running speed, track deformation and response behaviour of the overall system.
PL
Siły działające na podwozie pojazdu gąsienicowego są wynikiem jego złożonych działań. Siły te są spowodowane przez różne zmienne i ich kombinacje. W artykule została opisana metoda symulacji sił działających na podwozie, uwzględniając różne kombinacje krytycznych parametrów. Sprawą nadrzędną było opisanie algorytmu, który pozwala modelować dynamicznie pokonywanie przez koparkę przeszkód biorąc pod uwagę różne parametry takie jak: wysokość przeszkody, prędkość pojazdu, jego deformację.
17
Content available remote Speed Control Scheme Analysis of Switched Reluctance Actuator
75%
Pestana L. , Calado M. , Mariano S.
Przegląd Elektrotechniczny
|
2012
|
tom R. 88, nr 1a
173-176
EN
This paper presents the implementation of a nonlinear model of a Linear Switched Reluctance Actuator (LRSA) in Simulink/ SimPowerSystems environment. The model is based in an already implemented motor model for the rotating machine, which was improved and adopted to be applied in the analysis of a linear actuator. Both the magnetic information from experimental data and results obtained from Finite Element Analysis (FEA) were used to perform that analysis. The model is used in the assessment of several control schemes.
PL
Przedstawiono nieliniowy model liniowego siłownika reluktancyjnego LRSA z wykorzystaniem środowiska Simulink/SimPowerSystem. Do analizy wykorzystuje się dane eksperymentalne i obliczone przy wykorzystaniu metody elementu skończonego.
18
Content available remote Zastosowanie modułu symulacji dynamicznej programu CAD w analizie układu napędowego elektronarzędzia
75%
Wilk A. , Michna M.
Przegląd Elektrotechniczny
|
2017
|
tom R. 93, nr 3
144--147
PL
W referacie przedstawiono analizę mechanicznego układu przeniesienia napędu elektronarzędzia (wyrzynarki elektrycznej) przy zastosowaniu Modułu Symulacji Dynamicznej (MSD) programu Autodesk Inventor (AI). Opracowano modele 3D poszczególnych części elektronarzędzia i połączono je przy zachowaniu tzw. kinematyki odwrotnej. Przeprowadzono analizę wpływu poszczególnych węzłów kinetycznych na przebieg momentu na wale silnika elektrycznego. Wykazano, które węzły mają największy wpływ na wartość średnią i harmoniczne momentu.
EN
The paper presents an analysis of the mechanical drive transmission system of the electric power tools (electric jigsaw) using the Dynamic Simulation Modules (DSM) from the Autodesk Inventor (AI). The 3D geometric models of the power tool various parts was developed and assembled using inverse kinematics rules. The analysis of the influence of each kinematic node on the electric motor shaft torque was performed. It has been shown which kinetic nodes of the mechanical transmission system have the greatest impact on the average value and the harmonic of the torque.
19
Content available Modelowanie i sterowanie reaktora zbiornikowego przepływowego z użyciem regulatora PID
75%
Wodołażski A.
Inżynieria Ekologiczna
|
2016
|
tom Nr 49
195--201
PL
W artykule przedstawiono model układu regulacji dynamiki reaktora zbiornikowego przepływowego w syntezie metanolu w układzie trójfazowym. Symulację reaktora przeprowadzono zarówno dla stanów ustalonych jak i nieustalonych. Obliczono współczynnik efektywności do osiągnięcia maksymalnej wydajności produktu z jednostki objętości reaktora. Z symulacji dynamiki reaktora w zamkniętej pętli regulacji otrzymano dane służące nastrojeniu regulatora PID (regulator proporcjonalno-całkująco-różniczkujący). Wyniki regulacji procesowej zapewniają optymalną zdolność produkcyjną reaktora wraz z eliminacją miejscowych przegrzań czy nagłych wzrostów temperatury.
EN
This paper presents a model of dynamics control for continuous stirred tank reactor (CSTR) in methanol synthesis in a three-phase system. The reactor simulation was carried out for steady and transient state. Efficiency ratio to achieve maximum performance of the product per reactor unit volume was calculated. Reactor dynamics simulation in closed loop allowed to received data for tuning PID controller (proportional-integral-derivative). The results of the regulation process allow to receive data for optimum reactor production capacity, along with local hot spots eliminations or temperature runaway.
20
Content available remote Experimentally determinate flux linkage curve for dynamic simulation of universal motor
75%
Bekovic M. , Hamler A. , Gorican V.
Przegląd Elektrotechniczny
|
2008
|
tom R. 84, nr 12
142-144
EN
This paper is divided into two sections, where in first section different experimental methods for determining magnetically nonlinear characteristics of universal motor (UM) are described and evaluated. In second section obtained characteristic were used in dynamic simulation of UM and results of dynamic and steady state behaviour are compared with measured characteristics.
PL
Artykuł jest podzielony na dwie części, w których zaprezentowano: różne metody eksperymentalne dla określenia magnetycznie nieliniowej charakterystyki silnika uniwersalnego i ich ewaluację oraz wykorzystanie otrzymanych charakterystyk w dynamicznej symulacji silnika uniwersalnego i przedstawienie porównania charakterystyk obliczonych i zmierzonych w stanach ustalonym i dynamicznym.
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