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Tytuł:
Improved aeroelastic design through structural optimization
Autorzy:
Nowak, M.
Powiązania:
https://bibliotekanauki.pl/articles/201308.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fluid-structure interaction
biomimetics
structural optimization
Opis:
The paper presents the idea of coupled multiphysics computations. It shows the concept and presents some preliminary results of static coupling of structural and fluid flow codes as well as biomimetic structural optimization. The model for the biomimetic optimization procedure was the biological phenomenon of trabecular bone functional adaptation. Thus, the presented structural bio-inspired optimization system is based on the principle of constant strain energy density on the surface of the structure. When the aeroelastic reactions are considered, such approach allows fulfilling the mechanical theorem for the stiffest design, comprising the optimizations of size, shape and topology of the internal structure of the wing.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 2; 237-240
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Piezoelectric controlled noise attenuation of engineering systems
Tłumienie hałasu w konstrukcjach inżynierskich za pomocą elementów piezoelektrycznych
Autorzy:
Ringwelski, S.
Luft, T.
Gabbert, U.
Powiązania:
https://bibliotekanauki.pl/articles/279285.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
FEM
BEM
fluid-structure interaction
piezoelectricity
active control
Opis:
In the paper, a recently developed overall numerical approach is presented, which is suitable to design smart engineering systems to actively reduce sound radiation. For this reason, piezoelectric patch actuators and sensors are attached to the surface of the structure to control structural vibrations. In the paper, the theoretical background of the design process is briefly presented first. The basis is a combined finite element and boundary element approach. Electromechanical coupled finite elements are applied to model the structure as well as the piezoelectric patches. The finite element method is also used to model fluid domains which are partially or totally bounded by the structure. Boundary elements are used to characterize the unbounded acoustic pressure fields. Then it is shown how control algorithms can be included into the simulation process, which finally results in an overall simulation approach for structural acoustic systems including control. The numerical approach is also verified by measurements. The experimental setup enables measurements of the uncontrolled and controlled radiated sound fields using a microphone array. A comparison between the measured values and those predicted by the proposed coupled finite element-boundary element approach shows good agreement. Finally, it is demonstrated how the approach can be applied to real engineering systems. As an example, noise reduction of a car engine with a smart oil pan is presented. Again, the numerical results of the uncontrolled and controlled behavior are in good agreement with the measurements. It can be concluded that the proposed overall numerical approach can be applied to design real engineering systems, which are able to actively reduce the noise level.
W pracy przedstawiono ostatnio opracowaną przez autorów metodę obliczeniową do projektowania konstrukcji „inteligentnych”, których zadaniem jest redukcja emisji hałasu. Do samego tłumienia hałasu użyte są elementy piezoelektryczne przyklejane do powierzchni danej konstrukcji. Na początek omówiono podstawy teoretyczne projektowania takich układów. Podstawę stanowi kombinacja metody elementów skończonych i brzegowych. Elementy skończone ze sprzężeniem elektromechanicznym służą do modelowania piezoelektryków i konstrukcji bazowej. Metodę elementów skończonych zastosowano także do modelowania płynu znajdującego się wewnątrz projektowanego urządzenia przy częściowym lub całkowitym zamknięciu płynu ścianami konstrukcji. Elementy brzegowe użyto do opisu otwartego pola akustycznego. Następnie pokazano sposób, w jaki algorytmy sterowania należy wprowadzić do ogólnej procedury obliczeniowej do projektowania urządzeń z aktywnym układem redukcji hałasu. Otrzymane rezultaty symulacji numerycznych zweryfikowano pomiarami z doświadczeń. Stanowisko badawcze zostało wyposażone w odpowiedni układ mikrofonów, co umożliwiło pomiar poziomu hałasu z włączonym i wyłączonym układem sterowania. Stwierdzono dobrą zgodność wyników eksperymentu z zaproponowaną metodą numeryczną wykorzystującą elementy skończone i brzegowe. Na koniec omówiono przykład zastosowania zaproponowanej metody do projektowania rzeczywistej konstrukcji. Zaprezentowano silnik samochodowy z układem aktywnej redukcji hałasu umiejscowionym na misce olejowej. Powtórnie zbadano zgodność wyników symulacji numerycznych z pomiarami doświadczalnymi, stwierdzając dobrą zgodność pomiędzy nimi. W konkluzji uznano, że zaproponowana metoda nadaje się do zintegrowania z ogólnymi algorytmami projektowania rzeczywistych konstrukcji inżynierskich, w których nacisk położono na redukcję poziomu hałasu.
Źródło:
Journal of Theoretical and Applied Mechanics; 2011, 49, 3; 859-878
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exact Controllability of an Elastic Membrane Coupled With a Potential Fluid
Autorzy:
Hansen, S.
Powiązania:
https://bibliotekanauki.pl/articles/908130.pdf
Data publikacji:
2001
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
sterowność
system elastyczny
exact controllability
fluid-elastic interaction
fluid-structure interaction
potential fluid
Opis:
We consider the problem of boundary control of an elastic system with coupling to a potential equation. The potential equation represents the linearized motions of an incompressible inviscid fluid in a cavity bounded in part by an elastic membrane. Sufficient control is placed on a portion of the elastic membrane to insure that the uncoupled membrane is exactly controllable. The main result is that if the density of the fluid is sufficiently small, then the coupled system is exactly controllable.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2001, 11, 6; 1231-1248
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on striking ship with loading impact on the performance of the double hull oil tanker collision
Autorzy:
Wu, W.
Yang, Y.
Zhang, J.
Lu, J.
Powiązania:
https://bibliotekanauki.pl/articles/258890.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship collision
fluid-structure interaction
impact parameters
numerical simulation
Opis:
Due to the great danger of the collision of oil tankers, lots of research on the collision of oil tankers has been carried out. But, at present, the research on the collision of oil tankers mainly focuses on the loading condition of the struck ship, ignores the impact on the loading condition of the striking ship. However, during the actual oil tanker collision, the striking ship is generally in the state of loading. Therefore, it is necessary to carry out the analysis of the impact of the loading condition of the striking ship on the collision damage of the oil tanker. In this paper, the effect of striking ship with loading on the impact performance of the side structure during the collision of the cargo double hull oil tanker has been investigated. The ship collision model was established by using the finite element software ANSYS/ LS-DYNA which is based on 7000 tons of double hull oil tankers. Based on the analysis of the collision force, impact of striking speed changes, impact of striking deep changes and structural energy absorption during the collision process, the influence of the striking ship with loading on the damage mechanism and the impact performance of the double shell oil ship side structure was expounded. The results show that the influence of the striking ship with loading can be great to the damage to side hull during the research of the collision performance of the oil tanker.
Źródło:
Polish Maritime Research; 2018, S 2; 42-48
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A numerical approach in applying panel method for the added mass of a group of sections in fluids
Autorzy:
Zhang, D.
Li, P.
Wang, Q.
Yang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/38695713.pdf
Data publikacji:
2023
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
numerical method
panel method
fluid-structure interaction
confined fluid
fluid mass coefficients
Opis:
This paper firstly expands an efficient numerical methodology developed from the source panel method to the added mass calculation of long column systems in fluid. Structures submerged in fluid are considered as two-dimensional and are discretized into a number of source panels. The influence coefficient matrices and the potential function are then calculated and the fluid forces are calculated by the unsteady Bernoulli equation. Finally, we utilize this present method to calculate the mass coefficients of some typical problems, which effectively verifies its feasibility and accuracy. This method takes into account both applicability and computational efficiency. On the one hand, in contrast to the analytical method which is only applicable to specific cross-sections, this method is applicable to arbitrary boundaries with C0 continuity in mathematics. On the other hand, this method requires less mesh and computation than commercial software. This paper extends the application of the source panel method which is widely used in aerodynamics to provide a reference for added mass calculation problems in engineering.
Źródło:
Archives of Mechanics; 2023, 75, 1-2; 151-168
0373-2029
Pojawia się w:
Archives of Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eigencharacteristics of fluid filled tanks: an extended symmetrical coupled approach
Autorzy:
Wiśniewski, A.
Kucharski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1933192.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska
Tematy:
fluid-structure interaction
modal analysis
free vibration
acoustic method
FEM
Opis:
In the numerical analysis of the eigen behaviour of large liquid and gas storage tanks, an important role is played by initial pre-stressing of such thin-walled structures due to high fluid pressure and gravity. In a majority of numerical simulations, the finite state of deformation is first calculated, following which small, linear vibrations are superimposed on the finite state. This paper is devoted to refinement and assessment of the basic Eckart superimposed eigencharacteristics problem simultaneously stated in fluid and thin-walled structures. Eckart's coupled approach leads to variational structure-fluid coupling in the so-called acoustic approximation. In order to verify the feasibility and correctness of the symmetrical Eckart approach, finite element discretization and a calculation example of a rectangular tank are presented. The calculated results are compared with literature ones.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2006, 10, 4; 455-468
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analysis of the effect of flexibilityon the propulsive performance of a heaving hydrofoil undergoing sinusoidal and non-sinusoidal motions
Autorzy:
Li, Fengkun
Yu, Pengyao
Wang, Qiang
Li, Guangzhao
Wu, Xiangcheng
Powiązania:
https://bibliotekanauki.pl/articles/2033183.pdf
Data publikacji:
2021
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
fluid-structure interaction
flexible hydrofoil
non-sinusoidal motions
propulsive characteristics
Opis:
Numerical simulations of fluid‒structure interaction (FSI) on an elastic foil heaving with constant amplitude in freestream flow are carried out at a low Reynolds number of 20,000. The commercial software STAR-CCM+ is employed to solve the flow field and the large-scale passive deformation of the structure. The results show that introducing a certain degree of flexibility significantly improves the thrust and efficiency of the foil. For each Strouhal number St considered, an optimal flexibility exists for thrust; however, the propulsive efficiency keeps increasing with the increase in flexibility. The visualisation of the vorticity fields elucidates the improvement of the propulsive characteristics by flexibility. Furthermore, the mechanism of thrust generation is discussed by comparing the time-varying thrust coefficient and vortex structure in the wake for both rigid and elastic foils. Finally, in addition to sinusoidal motions, we also consider the effect of non-sinusoidal trajectories defined by flattening parameter S on the propulsive characteristics for both rigid and elastic foils. The non-sinusoidal trajectories defined by S=2 are associated with the maximum thrust, and the highest values of propulsive efficiency are obtained with S=0.5 among the cases considered in this work.
Źródło:
Polish Maritime Research; 2021, 4; 4-19
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New biomimetic approach to the aircraft wing structural design based on aeroelastic analysis
Autorzy:
Gawel, D.
Nowak, M.
Hausa, H.
Roszak, R.
Powiązania:
https://bibliotekanauki.pl/articles/199862.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optimization
fluid-structure interaction
coupling techniques
biomimetics
optymalizacja
sprzęganie
biomimetyka
Opis:
This paper presents a new biomimetic approach to the structural design. For the purpose of aircraft wing design the numerical environment combining simultaneous structural size, shape, and topology optimization based on aeroelastic analysis was developed. For the design of aircraft elements the optimization process must be treated as a multi-load case task, because during the fluid structure interaction analysis each step represents a different structural load case. Also, considering different angles of attack, during the CFD computation each result is considered. The method-specific features (such as domain independence, functional configurations during the process of optimization, and multiple load case solution implemented in the optimization scenario) enable the optimal structural form. To illustrate the algorithm functionality, the problem of determining the optimal internal wing structure was presented. The optimal internal wing structure resulting from aeroelastic computation with different angles of attack has been presented.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 5; 741-750
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Overlapping Mesh in Numerical Hydrodynamics
Autorzy:
Panahi, R.
Shafieefar, M.
Powiązania:
https://bibliotekanauki.pl/articles/258676.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
finite volume
two-phase flow
overlapping mesh
fluid-structure interaction
Opis:
A Finite Volume (FV) algorithm is presented to investigate two-dimensional hydrodynamic problems including viscous free surface flow interaction with free rigid bodies in the case of large and/or relative motions. Two-phase flow with complex deformations at the interface is simulated using a fractional stepvolume of fluid algorithm while it is also capable of representing a high quality wave tank, according to implemented temporal discretisation. Rigid body motions are also captured using two overset meshes. Flow variables are transferred using a simple fully implicit non-conservative interpolation scheme which maintains the second-order accuracy of implemented spatial discretisation. A code is developed and an appropriate set of problems are investigated. Results show a good potential to develop a virtual hydrodynamics laboratory.
Źródło:
Polish Maritime Research; 2009, 2; 24-33
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic analysis of the aortic valve functioning
Autorzy:
Patralski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1839626.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
aortic valve
algorithm ALE
fluid-structure interaction
finite element analysis
Opis:
The aim of the paper was to recognize the influence of mechanical factors on the movement of the leaflets. Mechanical stimuli may have a positive effect on remodeling the leaflet material to adapt its structure to a changing load. A model of the valve functioning process was developed. A geometric model similar to the construction of a natural valve was adopted. The hybrid process of the liquid-solid interaction problem was described. The interaction process was modeled. The problem was formulated with the Galerkin FEM method. Numerical analyses of a single valve work cycle and the calcification process of aortic valve bioprostheses were performed.
Źródło:
Journal of Theoretical and Applied Mechanics; 2020, 58, 4; 853-869
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural response of a blast loaded fuselage
Autorzy:
Dacko, A.
Toczyski, J.
Powiązania:
https://bibliotekanauki.pl/articles/246151.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
thin-walled structures
blast wave load
fluid-structure interaction
LS-DYNA
Opis:
The most important task in tests of resistance of aircraft structures to the terrorist threats is to determine the sensitivity of thin-walled structures to the blast wave load. For obvious reasons, full-scale experimental investigations are carried out exceptionally. In such cases numerical analyses are very important. They allow tuning modelparameters for proper correlation with experimental data. With this preliminary analysis experiment can be planned properly. The paper presents a summary of the results of numerical analysis of model of medium sizefuselage. Various manufacturing techniques are considered - the skin made of aluminum alloy (2024-T3) and the skins made of modern layered materials (GLARE) were compared. Characteristics of the materials used in FE simulations were obtained experimentally. Modelling of C4 detonation was also discussed. Studies have shown very strong sensitivity of the results to chosen numerical models of materials, formulations of elements, assumed parameters etc. Studies confirm also very strong necessity of the correlation of analysis results with experimental data. Without such a correlation it is difficult to talk about the validation of the results obtained from the "explicit" codes.
Źródło:
Journal of KONES; 2010, 17, 1; 101-109
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vibro-acoustic analysis of laminated double glazing using the force identification method
Autorzy:
Ben Jdidia, M
Akrout, A
Tounsi, D
Fakhfakh, T.
Haddar, M.
Powiązania:
https://bibliotekanauki.pl/articles/949211.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
fluid-structure interaction
thin-film laminated plate
ICA
excitation force
Kurtosis
Opis:
This paper presents a procedure for identifying wave forms and excitation frequencies of some forces applied on a given complex fluid-structure coupled system by using only its vibro-acoustic response. The considered concept is called the Independent Component Analysis (ICA) which is based on the Blind Source Separation (BSS). In this work, the ICA method is exploited in order to determine the excitation force applied to a thin-film laminated double glazing system enclosing a thin fluid cavity and limited by an elastic joint. The dynamic response of the studied fluid-structure coupled system is determined by finite element discretization and minimization of the homogenized energy functional of the coupled problem. This response will serve as the input for the ICA algorithm in order to extract the applied excitation.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 4; 895-904
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Bolza optimal synthesis problem for singular estimate control systems
Autorzy:
Lasiecka, I.
Tuffaha, A.
Powiązania:
https://bibliotekanauki.pl/articles/970760.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
Bolza problem
Riccati equation
singular estimate control systems
fluid-structure interaction
Opis:
Bolza problem governed by PDE control systems with unbounded controls is considered. The motivating example is fluid structure interaction model with boundary-interface controls. The aim of the work is to provide optimal feedback synthesis associated with well denned gain operator constructed from the Riccati equation. The dynamics considered is of mixed parabolic-hyperbolic type which prevents applicability of tools developed earlier for analytic semigroups. It is shown, however, that the control operator along with the generator of the semigroup under consideration satisfy singular estimate referred to as Revisited Singular Estimate (RSE). This estimate, which measures "unboundedness" of control actions, is a generalization and a weaker form of Singular Estimate (SE) treated in the past literature. The main result of the paper provides Riccati theory developed for this new class of control systems labeled as RSECS (Revisited Singular Estimate Control Systems). The important feature is that the gain operator, constructed via Riccati operator, is consistent with the optimal feedback synthesis. The gain operator, though unbounded, has a controlled algebraically singularity at the terminal point. This enables one to establish well-posedness of the Riccati solutions and of the optimal feedback representation. An application of the theoretical framework to boundary control of a fluid-structure interaction model is given.
Źródło:
Control and Cybernetics; 2009, 38, 4B; 1429-1460
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the optimization methods to the search of marine propulsion shafting global equilibrium in running condition
Autorzy:
Ursolov, Aleksandr
Batrak, Yuriy
Tarelko, Wieslaw
Powiązania:
https://bibliotekanauki.pl/articles/258800.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
marine propulsion shafting
bearing lubrication
fluid-structure interaction
finite-element method
optimization
Opis:
Full- film hydrodynamic lubrication of marine propulsion shafting journal bearings in running condition is discussed. Considerable computational difficulties in non-linear determining the quasi-static equilibrium of the shafting are highlighted. To overcome this problem the approach using two optimization methods (the particle swarm method and the interior point method) in combination with the specially developed relaxation technique is proposed. The developed algorithm allows to calculate marine propulsion shafting bending with taking into account lubrication in all journal bearings and exact form of journal inside bearings, compared to results of most of the publications which consider lubrication only in the aft most stern tube bearing and assume rest of bearings to be represented by points. The calculation results of typical shafting design with four bearings are provided. The significance of taking into account lubrication in all bearings is shown, specifically more exact values of bearings’ reactions, shafting deflections, minimum film thickness and maximum hydrodynamic pressure in the stern tube bearing in case of considering lubrication in all bearings.
Źródło:
Polish Maritime Research; 2019, 3; 172-180
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil-structure-fluid interaction of the rectangular tank - seismic analysis
Interakcja grunt-konstrukcja-ciecz zbiornika prostokątnego - analiza sejsmiczna
Autorzy:
Kotrasová, K.
Powiązania:
https://bibliotekanauki.pl/articles/2067975.pdf
Data publikacji:
2017
Wydawca:
Politechnika Częstochowska
Tematy:
zbiornik prostokątny
płyn
trzęsienie ziemi
oddziaływanie płyn-struktura
rectangular tank
fluid
earthquake
fluid-structure interaction
Opis:
Ground-supported tanks are used to store a variety of liquids. The fluid develops hydrodynamic pressure on walls and bottom of tank during an earthquake. This paper provides theoretical background for specification of impulsive and convective actions of fluid in liquid storage rectangular container by using analytical methods. Numerical model of tank seismic response - the endlessly long shipping channel was obtained by using of Finite Element Method (FEM), Arbitrary-Lagrangian-Eulerian (ALE), Fluid Structure Interactions (FSI) formulation in software ADINA. The results of the analytical methods and the numerical solution were compared for partially water filled channel grounded on hard soil or sub-soil 30 MNm-3. It was considered the horizontal ground motion of the earthquake in Loma Prieta.
Zbiorniki naziemne są używane do przechowywania różnych płynów. Obecność płynu powoduje powstawanie ciśnienia hydrodynamicznego na ścianach i dnie zbiornika podczas trzęsienia ziemi. W artykule przedstawiono teoretyczne podstawy przy użyciu metod analitycznych dla określenia działań impulsywnych i konwekcyjnych płynu w prostokątnym pojemniku do magazynowania cieczy. Numeryczny model reakcji sejsmicznej zbiornika - nieskończenie długi kanał uzyskano, stosując metodę elementów skończonych (MES), równania Eulera-Lagrange’a, interakcję pomiędzy płynem i konstrukcją (FSI) w oprogramowaniu ADINA. Wyniki metod analitycznych i rozwiązania numerycznego porównano dla kanału częściowo wypełnionego wodą, uziemionego na twardej glebie lub podłożu 30 MNm-3. Analizowano ruch poziomy w trzęsieniu ziemi w Loma Prieta.
Źródło:
Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo; 2017, 23 (173); 147-156
0860-7214
Pojawia się w:
Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 29

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