Wyniki wyszukiwania dla: pile modelling

• FEM modelling of screw displacement pile interaction with subsoil

  Publikacja

  • P. Więcławski
  • A. Krasiński

  - Archives of Civil Engineering - Rok 2023

  Predicting the-settlement characteristics of piles is an important element in the designing of pile foundations. The most reliable method in evaluating pile-soil interaction is the static load test, preferably performed with instrumentation for measuring shaft and pile base resistances. This, however, is a mostly post-implementation test. In the design phase, prediction methods are needed, in which numerical simulations play an...

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• Developments in unsteady pipe flow friction modelling

  Publikacja

  • R. Szymkiewicz

  - JOURNAL OF HYDRAULIC RESEARCH - Rok 2002

  W pracy omówiono wpływ błędów numerycznych na jakość rozwiązania równań uderzenia hydraulicznego. Wykazano rolę dyfuzji numerycznej i jej wpływ na dokładność rozwiązania w porównaniu z członem tarcia.

• The improvement of axial bearing capacity of open-end pipe piles

  Publikacja

  • A. Krasiński
  • M. Cudny

  - Rok 2008

  Zaproponowano sposób zwiększania nośności osiowej pali rurowych z otwartym dnem za pomocą wewnętrznych pierścieni. Przedstawiono wyniki badań w skali naturalnej i badań modelowych. Przeprowadzono analizę teoretyczną zjawiska metodą analityczną i numeryczną. Badania i analizy potwierdziły skuteczność proponowanego rozwiązania technicznego.

• Secondary arc modelling for single pole reclosing analyses

  Publikacja

  • J. Klucznik
  • Z. Lubośny
  • K. Dobrzyński
  • S. Czapp

  - Rok 2015

  The paper discusses two evaluation methods of single pole auto-reclosing process effectiveness in HV transmission lines. Secondary arc current and recovery voltage calculation results obtained by load flow calculation are compared to the results obtained by the time domain simulations. Moreover, a nonlinear secondary arc model implementation is presented. The paper presents the study results for the three types of EHV transmission...

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• Piel

  Czasopisma

  ISSN: 0213-9251

• APPLIED MATHEMATICAL MODELLING

  Czasopisma

  ISSN: 0307-904X , eISSN: 1872-8480

• JOURNAL OF MOLECULAR MODELING

  Czasopisma

  ISSN: 1610-2940 , eISSN: 0948-5023

• Some Aspects of Shear Behavior of Soft Soil–Concrete Interfaces and Its Consequences in Pile Shaft Friction Modeling

  Publikacja

  • J. Konkol
  • K. Mikina

  - Materials - Rok 2021

  This paper examines the stiffness degradation and interface failure load on soft soil–concrete interface. The friction behavior and its variability is investigated. The direct shear tests under constant normal load were used to establish parameters to hyperbolic interface model which provided a good approximation of the data from instrumented piles. Four instrumented piles were used to obtain reference soil–concrete interface behavior....

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• Modelling of the High Speed Multi-Pole Synchronous Generator for Application in More Electric Aircraft Power Systems

  Publikacja

  • M. Michna
  • F. Kutt
  • M. Ronkowski

  - Rok 2015

  In this paper different models of the synchronous generator are presented. The simulation results compared with the measurements are shown. Certain physical phenomena are included in described models for the porpoise of adequate analysis of the more electric aircraft power system. For different modelling levels, such as functional level or behavioural level, different physical phenomena have been included. Simulation results for...

• Numerical analysis of pile installation effects in cohesive soils

  Publikacja

  • J. Konkol

  - Rok 2018

  In this thesis the empirical equation for radial effective stress calculation after displacement pile installation and following consolidation phase has been proposed. The equation is based on the numerical studies performed with Updated Lagrangian, Arbitrary Lagrangian-Eulerian and Coupled Eulerian-Lagrangian formulations as well as the calibration procedure with database containing world-wide 30 pile static loading tests in cohesive...

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