Wyniki wyszukiwania dla: power cables - MOST Wiedzy

Wyszukiwarka

Wyniki wyszukiwania dla: power cables

Filtry

wszystkich: 64
wybranych: 57

wyczyść wszystkie filtry


Filtry wybranego katalogu

  • Kategoria

  • Rok

  • Opcje

wyczyść Filtry wybranego katalogu niedostępne

Wyniki wyszukiwania dla: power cables

  • Damage Analysis of Tensioning Cable Anchorage Zone of a Bridge Superstructure, Using CDP Abaqus Material Model

    Numerical analysis of the tensioning cables anchorage zone of a bridge superstructure is presented in this paper. It aims to identify why severe concrete cracking occurs during the tensioning process in the vicinity of anchor heads. In order to simulate the tensioning, among others, a so-called local numerical model of a section of the bridge superstructure was created in the Abaqus Finite Element Method (FEM) environment. The...

    Pełny tekst do pobrania w portalu

  • Cable-stayed bridges. Basic static schemes

    The paper presents an overview of shaping of cable-stayed bridges. Historical background, basic static sketches and overview of selected bridges are included. Selected natural solutions and interesting unrealized projects were presented. Basic ideas and most important principals are discussed. The examples and sketches were given an author's comment. Static diagrams of two pylon structures with three variants of the arrangement...

    Pełny tekst do pobrania w portalu

  • Experimental study and numerical optimization of tensegrity domes – A case study

    Publikacja

    The paper deals with the design, experimental analysis and numerical optimization of tensegrity dome models. Two structures are analyzed – a Geiger system dome (preliminary dome), with PVC-U bars and PA6/PP/PET tendons and a Fuller system dome (target dome), with wooden bars and steel cables as tendons. All used materials are experimentally tested in terms of Young's modulus and yield stress values, the compressed bars are also...

    Pełny tekst do pobrania w portalu

  • Case Study of Stray Current Corrosion of Tall Ship Mast

    Publikacja

    - Rok 2016

    Nowadays, in the present technical civilization there are numerous complex technical systems that may generate various hazards. Large transport units like ships can be considered as the most dangerous systems. Therefore, it is important to eliminate all possible hazards, especially for ship crewmembers. Destruction of ship structural components caused by vast corrosion is one of these hazards. Usually, its activity leads to a decrease...

  • Modeling of Common Mode Currents Induced by Motor Cable in Converter Fed AC Motor Drives

    Publikacja

    - Rok 2011

    Investigation of conducted EMI generation in AC motor fed by pulse width modulated frequency converters requires to consider parasitic capacitances in converters, motor windings and feeding cables to be taken into account. Motor voltage transients and related common mode currents are significantly correlated with resonance effects occurring in load circuits. An analysis of frequency converter load impedance-frequency characteristics...

    Pełny tekst do pobrania w serwisie zewnętrznym

  • Diagnostics and monitoring of the longest span extradosed bridge in Europe

    Publikacja

    The article presents complex diagnostic procedures applied for the purpose of behavior analysis of the extradosed bridge with the longest span in Europe that was built in 2018 in Poland. The system of health monitoring was used to: register internal forces in temporary supports, monitor concrete bonding, perform in situ diagnostics and operation tests. The bridge is a continuous four-span structure with spans theoretical lengths...

  • Broadband Modeling of Motor Cable Impact on Common Mode Currents in VFD

    Publikacja

    - Rok 2011

    Examination of conducted EMI generation and propagation in AC motor drives fed by frequency converter requires to consider parasitic capacitances in converters, motor windings and feeding cables to be taken into account. AC motor winding voltage transients and related common mode currents are significantly correlated with resonance effects occurring in converter's load circuits. Intensity levels of these phenomena depend...

    Pełny tekst do pobrania w serwisie zewnętrznym