Search results for: Dynamics%20of%20metal%20structures

• Monitoring of metal structures with the dynamic methods

  Publication

  • A. Beskopylny
  • A. Veremeenko
  • E. Kadomtseva
  • H. Anysz

  - Year 2019

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• ENGINEERING STRUCTURES

  Journals

  ISSN: 0141-0296 , eISSN: 1873-7323

• Investigation of behaviour of metal structures with polymer dampers under dynamic loads

  Publication

  • N. Lasowicz
  • R. Jankowski

  - Procedia Engineering - Year 2017

  A large number of accidents concerning structures subjected to dynamic loads have been recently observed. One of the examples of such a structure is a temporary steel grandstand erected using scaffolding system. Dynamic load that is generated by crowd movement has a significant influence on the behaviour of the structure and may lead to excessive structural vibrations. The aim of the study is to consider the idea of using polymer...

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• Structural Dynamics and Stability of Composite Structures

  Publication

  • S. Han
  • I. Kreja
  • G. Rus
  • G. Lomboy

  - Advances in Materials Science and Engineering - Year 2016

  This an editorial for a special Issue devoted to the application of dynamic and stability analysis of composite structures. In structural applications, past few decades have seen outstanding advances in the use of composite materials including Functionally Graded Materials (FGM). Most structures, whether they are used in civil, marine, or aerospace engineering, are subjected to dynamic loads during their operation.Therefore, dynamic...

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• Structural Dynamics and Stability of Composite Structures

  Publication

  • S. Han
  • I. Kreja
  • G. Rus
  • G. Lomboy

  - Advances in Materials Science and Engineering - Year 2016

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• COMPOSITE STRUCTURES

  Journals

  ISSN: 0263-8223 , eISSN: 1879-1085

• On the non-linear dynamics of torus-shaped and cylindrical shell structures

  Publication

  • S. Dastjerdi
  • B. Akgöz
  • Ö. Civalek
  • M. Malikan
  • V. Eremeev

  - INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE - Year 2020

  In this study, the non-linear dynamic analysis of torus-shaped and cylindrical shell-like structures has been studied. The applied material is assumed as the functionally graded material (FGM). The structures are considered to be used for important machines such as wind turbines. The effects of some environmental factors on the analysis like temperature and humidity have been considered. The strain field has been calculated in...

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• Generating optimal paths in dynamic environments using RiverFormation Dynamics algorithm

  Publication

  • G. Redlarski
  • M. A. Dąbkowski
  • A. Pałkowski

  - Journal of Computational Science - Year 2017

  The paper presents a comparison of four optimisation algorithms implemented for the purpose of finding the shortest path in static and dynamic environments with obstacles. Two classical graph algorithms –the Dijkstra complete algorithm and A* heuristic algorithm – were compared with metaheuristic River Formation Dynamics swarm algorithm and its newly introduced modified version. Moreover, another swarm algorithm has been compared...

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• Detection of stress corrosion cracking dynamics by dynamic electrochemical impedance spectroscopy

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow
  • K. Darowicki

  - CORROSION ENGINEERING SCIENCE AND TECHNOLOGY - Year 2004

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• Detection of stress corrosion cracking dynamics by dynamic electrochemical impedance spectroscopy.

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow

  - Year 2004

  Klasyczne badania korozji naprężeniowej nie dają precyzyjnych informacji o dynamice takiego procesu korozyjnego. Nowa technika dynamicznej elektrochemicznej spektroskopii impedanyjnej, która została opracowana w Katedrze Elektrochemii, Korozji i Inżynierii Materiałowej stwarza takie możliwości. Fakt ten związany z zastosowaną metodologią analizy umożliwiającą selektywną analizą czasowo-częstotliwościową danych pomiarowych.Praca...

• THIN-WALLED STRUCTURES

  Journals

  ISSN: 0263-8231 , eISSN: 1879-3223

• Robert Jankowski prof. dr hab. inż.

  People

  Faculty of Civil and Environmental Engineering, Department of Building Engineering, Doctoral School

  He was born on December 26, 1968 in Gdynia. A graduate of the High School at the Consulate of Poland in Benghazi, Libya (1987), a student at the Gdańsk University of Technology (MSc studies, 1987-1991 and 1992-1993), University of Sheffield, England (BSc studies, 1991-1992), University of Roskilde, Denmark (MSc course, 1993) and University of Tokyo, Japan (PhD studies, 1994-1997). From the beginning of his professional career associated...

• Modelling of high frequency dynamic responses of engineering structures

  Publication

  • A. Żak
  • M. Krawczuk
  • G. Redlarski
  • W. Waszkowiak

  - Year 2017

  Modelling of high frequency dynamic responses of engineering structures, especially those related to wave propagation, is a real numerical challenge. Nowadays most of numerical models, used for that purpose, are based on the application of various finite element techniques. However, finite element discrete models may also be considered as possessing certain periodic structures, which may manifest themselves in particular scenarios....

• Uncertainty Quantification in Experimental Structural Dynamics Identification of Composite Material Structures

  Publication

  • M. Łuczak
  • B. Peeters
  • M. Kahsin
  • S. Manzato
  • K. Branner

  - Year 2014

  Composite materials are widely used in manufacture of aerospace and wind energy structural components. These load carrying structures are subjected to dynamic time-varying loading conditions. Robust structural dynamics identification procedure impose tight constraints on the quality of modal models estimates obtained from vibration experiments. Modal testing results are influenced by numerous factors introducing uncertainty to...

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• Kinetics of spinodal decomposition in the Ising model with dynamic lattice liquid (DLL) dynamics

  Publication

  • K. Halagan
  • P. Polanowski

  - Journal of Non-Crystalline Solids - Year 2009

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• Structures

  Journals

  ISSN: 2352-0124

• Nanomechanical Stability of Aβ Tetramers and Fibril-like Structures: Molecular Dynamics Simulations

  Publication

  • A. Poma
  • T. Thu
  • L. Tri
  • H. Nguyen
  • M. Li

  - JOURNAL OF PHYSICAL CHEMISTRY B - Year 2021

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• Some remarks about numerical stability in nonlinear dynamics on the basic of truss structures.

  Publication

  • J. Chróścielewski
  • I. Lubowiecka
  • W. Witkowski

  - Year 2003

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• Non-linearity of multibody dynamic equations with respect to Lagrange multipliers: application to railway dynamics

  Publication

  • P. Fisette
  • K. Lipiński
  • J. Samin

  - Year 2009

  Praca koncentruje się na dynamice układów wieloczłonowych z zamkniętymi łańcuchami członów. Głównym punktem zainteresowania jest modelowanie układów z występującymi nieliniowymi zależnościami opisującymi wpływ siły mnożników Lagrange'a na dynamikę układu (nieliniowe modele siły tarcia.). Aby zbudować model dynamiki układu zawierającego zamknięte łańcuchy członów, wspomniane łańcuchy są "rozcinane" i budowana jest struktura drzewa...

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• Dynamic Formation and Breaking of Disulfide Bonds in Molecular Dynamics Simulations with the UNRES Force Field

  Publication

  • M. Chinchio
  • C. Czaplewski
  • A. Liwo
  • S. Ołdziej
  • H. Scheraga

  - Journal of Chemical Theory and Computation - Year 2007

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• Structural and dynamic insights on the EmrE protein with TPP+ and related substrates through molecular dynamics simulations

  Publication

  • M. Padariya
  • U. Kalathiya
  • M. Bagiński

  - CHEMISTRY AND PHYSICS OF LIPIDS - Year 2018

  EmrE is a bacterial transporter protein that forms an anti-parallel homodimer with four transmembrane helices in each monomer. EmrE transports positively charged aromatic compounds, such as TPP+ and its derivatives. We performed molecular dynamics (MD) simulations of EmrE in complex with TPP+, MeTPP+, and MBTPP+ embedded in a membrane. The detailed molecular properties and interactions were analysed for all EmrE-ligand complexes....

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• Structural and dynamic changes adopted by EmrE, multidrug transporter protein—Studies by molecular dynamics simulation

  Publication

  • M. Padariya
  • U. Kalathiya
  • M. Bagiński

  - BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES - Year 2015

  EmrE protein transports positively charged aromatic drugs (xenobiotics) in exchange for two protons and thus provides bacteria resistance to variety of drugs. In order to understand how this protein may recognize ligands, the monomer and asymmetric apo-form of the EmrE dimer embedded in a heterogeneous phospholipid (POPE + POPG) membrane were studied by molecular dynamics simulations. Dimer is regarded as a functional form of the...

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• Study of Direct Methanol Fuel Cell Process Dynamics Using Dynamic Electrochemical Impedance Spectroscopy

  Publication

  • K. Darowicki
  • E. Janicka
  • P. Ślepski

  - International Journal of Electrochemical Science - Year 2012

  A new technique, which was developed to characterize the direct methanol fuel cell under work conditions, has been presented in this paper. The impedance measurements were made using dynamic electrochemical impedance spectroscopy research technique in the galvanostatic mode, using multiple sinusoidal excitation. Obtained results show, that together with an increase of the temperature and working load, the global impedance...

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• A spline-based FE approach to modelling of high frequency dynamics of 1-D structures

  Publication

  • A. Żak
  • W. Waszkowiak

  - COMPUTERS & MATHEMATICS WITH APPLICATIONS - Year 2021

  In this paper a computational methodology leading to the development of a new class of FEs, based on the application of continuous and smooth approximation polynomials, being splines, has been presented. Application of the splines as appropriately defined piecewise elemental shape functions led the authors to the formulation of a new approach for FEM, named as spFEM, where contrary to the well-known NURBS approach, the boundaries...

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• Fem and time stepping procedures in non-linear dynamics of flexible branched shell structures.

  Publication

  • J. Chróścielewski
  • I. Lubowiecka
  • W. Pietraszkiewicz

  - Year 2004

  W pracy dyskutowano problemy całkowania równań ruchu, sformułowanych w ramach nieliniowej sześcioparametrowej teorii powłok. Główne myśli dotyczą zbieżności rozwiązań uzyskanych w procesie aproksymacji przestrzennej i czasowej oraz analizy stabilności rozwiązań MES.

• CAVER 3.0: A Tool for the Analysis of Transport Pathways in Dynamic Protein Structures

  Publication

  • E. Chovancova
  • A. Pavelka
  • P. Benes
  • O. Strnad
  • J. Brezovsky
  • B. Kozlikova
  • A. Gora
  • V. Sustr
  • M. Klvana
  • P. Medek... and 3 others

  - PLoS Computational Biology - Year 2012

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• COMPUTERS & STRUCTURES

  Journals

  ISSN: 0045-7949 , eISSN: 1879-2243

• DYNAMIC SYSTEMS AND APPLICATIONS

  Journals

  ISSN: 1056-2176

• JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS

  Journals

  ISSN: 0739-1102 , eISSN: 1538-0254

• New possibilities of the passive layer cracking dynamics detection using a new Dynamic Electrochemical Impedance Spectroscopy.

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow

  - Year 2004

  Nowa metoda Dynamicznej Elektrochemicznej Spektroskopii Impedancyjnej opracowana w Katedrze Elektrochemii, Korozji i Inżynierii Materiałowej Politechniki Gdańskiej daje możliwości określania charakterystyki impedancyjnej w dziedzinie czasu podczas procesu pękania ochronnej warstwy pasywnej. Fakt ten jest związany z procedurą analizującą wspomnianej techniki, która umożliwia selektywną analizę czasowo-częstotliwościową uzyskanych...

• On dynamics of flexible branched shell structures undergoing large overall motion using finite elements

  Publication

  • I. Lubowiecka
  • J. Chróścielewski

  - COMPUTERS & STRUCTURES - Year 2002

  Zaprezentowano autorski algorytm do analizy dynamicznej powłok sprężystych oparty na niejawnym schemacie Newmarka. Rozważania dotyczą całkowania po czasie dynamicznych równań ruchu sformułowanych w ramach nieliniowej sześcioparametrowej teorii powłok. Opracowanie zawiera pewne elementy analizy statycznej, poprzedzającej badania dynamiczne. Przykłady numeryczne prezentują zastosowanie algorytmu stanowią podstawową część pracy.

• Destruction of shell structures under the dynamic load on the human skull trauma basis

  Publication

  • M. A. Zmuda Trzebiatowski

  - Year 2018

  The main aim of this work is to investigate patterns of potential orbital bone fractures due to mechanical injuries. The solution of the main problem is followed by analysis of several testing examples having straight correlation with civil engineering structures, in which materials of wide range of stiffness are applied. To solve the main problem, the three-dimensional finite element method (FEM) model of the orbital region has...

• MACHINE DYNAMICS PROBLEMS

  Journals

  ISSN: 0239-7730

• Cultural Dynamics

  Journals

  ISSN: 0921-3740 , eISSN: 1461-7048

• Structural Dynamics

  Journals

  ISSN: 2329-7778

• Fluid Dynamics

  Journals

  ISSN: 0015-4628 , eISSN: 1573-8507

• ORGANIZATIONAL DYNAMICS

  Journals

  ISSN: 0090-2616 , eISSN: 1873-3530

• MACROECONOMIC DYNAMICS

  Journals

  ISSN: 1365-1005 , eISSN: 1469-8056

• Stochastics and Dynamics

  Journals

  ISSN: 0219-4937 , eISSN: 1793-6799

• Modeling of wood frame structures with different insulation materials under damaging dynamic loading

  Publication

  • M. Szczepański
  • W. Migda
  • R. Jankowski

  - AIP Conference Proceedings - Year 2020

  Wood frame buildings are very popular in regions that are exposed to different dynamic excitations, such as damaging earthquakes. Their seismic resistance is really important in order to prevent structural damages and human losses. This paper presents the results of advanced numerical investigation carried out using the FEM. Based on the models of wall panels, the numerical model of real structure of the wood frame building has...

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• Syntheses and Structures of Transition Metal Complexes with Phosphanylphosphinidene Chalcogenide Ligands

  Publication

  • A. Ordyszewska
  • N. Szynkiewicz
  • Ł. Ponikiewski
  • M. Scheer
  • J. Pikies
  • R. Grubba

  - INORGANIC CHEMISTRY - Year 2019

  The reactivity of the phosphanylphosphinidene complex [(DippN)2W(Cl)(η2-P-PtBu2)]− (1) toward chalcogens (Ch = Se, S) was studied. Reactions of stoichiometric amounts of 1 with chalcogens in DME yielded monomeric tungsten complexes with phosphanylphosphinidene chalcogenide ligands of the formula tBu2P−P−Ch (Ch = Se (in 2) and S (in 5)), which can be regarded as products of the addition of a chalcogen atom to a P=W bond in starting...

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• SMART MATERIALS & STRUCTURES

  Journals

  ISSN: 0964-1726 , eISSN: 1361-665X

• Prediction of the structures of proteins with the UNRES force field, including dynamic formation and breaking of disulfide bonds

  Publication

  • C. Czaplewski
  • S. Oldziej
  • A. Liwo
  • H. Scheraga

  - PROTEIN ENGINEERING DESIGN & SELECTION - Year 2004

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• Structural Change and Economic Dynamics

  Journals

  ISSN: 0954-349X

• Dynamic FE simulations of buckling process in thin-walled cylindrical metal silos

  Publication

  • P. Iwicki
  • J. Tejchman
  • J. Chróścielewski

  - THIN-WALLED STRUCTURES - Year 2014

  W artykule przedstawiono wyniki dynamicznej analizy wyboczeniowej cienkościennych silosów metalowych o przekroju kołowym. Analizy MES wykonano dla wstępnych imperfekcji geometrycznych o różnym kształcie i amplitudzie. Wyniki analizy dynamicznej porównano z analizami statycznymi.

• Lightweight glass and metal roof structures in the 19th century. Architecture and construction.

  Publication

  • M. Kwasek
  • A. Piwek

  - Year 2016

  The 19th century brought new construction possibilities. The usage of metal elements in mesh structures, filled in with glass, resulted in creating entirely new types of objects. They have distinguished themselves in architecture and technical solutions. The envelope structures giving spatial interiors were arising very quickly. They have been enabling large light penetration, triggering them extremely bright. Thus these building...

• A higher order transversely deformable shell-type spectral finite element for dynamic analysis of isotropic structures

  Publication

  • A. Żak
  • M. Krawczuk

  - FINITE ELEMENTS IN ANALYSIS AND DESIGN - Year 2018

  This paper deals with certain aspects related to the dynamic behaviour of isotropic shell-like structures analysed by the use of a higher order transversely deformable shell-type spectral finite element newly formulated and the approach known as the Time-domain Spectral Finite Element Method (TD-SFEM). Although recently this spectral approach is reported in the literature as a very powerful numerical tool used to solve various...

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• OCEAN DYNAMICS

  Journals

  ISSN: 1616-7341 , eISSN: 1616-7228

• SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

  Journals

  ISSN: 0267-7261 , eISSN: 1879-341X

• MARINE STRUCTURES

  Journals

  ISSN: 0951-8339 , eISSN: 1873-4170