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    Wyświetlanie 1-4 z 4
    Tytuł:
    Theoretical and experimental analysis of loading impact from the progressive gear on the lift braking distance with the use of the free fall method
    Autorzy:
    Lonkwic, P.
    Różyło, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/103063.pdf
    Data publikacji:
    2016
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    friction drive lift
    progressive gears
    safety
    FEA analysis
    Abaqus
    Opis:
    The gear which is the central safety element of the friction drive lift during braking is exposed to overloading connected with changeable weight which loads the lift braking system. In the article the results of numerical analysis for braking process of CHP 2000 type progressive gear distinguished by an innovative design have been presented. The numerical analysis was conducted with the use of a simulation of the gear roller displacement depending on changeable loading with the support of Abaqus/CAE software. Displacement of the gear roller from the neutral position in which the gear starts loosing energy of speeding up weight to zero was simulated. The results obtained from computer simulations were verified on the basis of a physical experiment at the bench station created to verify braking parameters of the gears with the use of free fall method.
    Źródło:
    Advances in Science and Technology. Research Journal; 2016, 10, 30; 103-109
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental Study of Failure Analysis in Notched and Repaired Fiberglass Epoxy Composite
    Autorzy:
    Hassoon, Omar Hashim
    Enzi, Abass
    Kashkool, Lujain H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2172353.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    damage analysis
    GFRP
    repaired GFRP
    finite element analysis
    FEA
    Opis:
    The composite materials are remarkably increasing in many industry sectors like aircraft, automobiles, oil pipes, and marine boats. This attention comes from their excellent properties, such as lightweight and high strength. However, these materials expose many damages like fiber-matrix debonding, matrix crack, and delamination. The composite structures risked damage through the service life and therefore need to repair to achieve their function with a good performance. This paper focuses on the analysis during the tensile test of samples of fiberglass epoxy composite materials exposed to damage before and after repair. Experimental and numerical investigations are performed to determine and identify mechanical properties and failure analysis between repaired and unrepaired composite plates. Five samples are selected: without hole, 4 mm hole-repaired, stepped hole from 4 to 8 mm, and stepped hole from 4 to 8 mm-repaired. Simulation models are created using the finite element (FE) method to compare them with Abaqus's practical experiments to predict damage during the tensile test. To simulate damage models, interlaminar and intralaminar damage, were used to study initiation and propagation of the samples failure. Results show that the experimental and numerical investigations of the repaired samples have a significant effect on the mechanical properties and failure behavior of the holed and stepped plates compared with unrepaired samples. Also, maximum stress and strain are concentrated around and on both sides of the hole, while the most significant damage occurs around the hole and the axial direction.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 2; 99--108
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Material Selection of Collapsible Pot Hauler and Finite Element Analysis Simulation Applied to the Selected Material
    Autorzy:
    Surya Hadi Saputra, Rahmad
    Iskandar, Budhi Hascaryo
    Kurniawati, Vita Rumanti
    Desrial, Desrial
    Purbayanto, Ari
    Powiązania:
    https://bibliotekanauki.pl/articles/2201910.pdf
    Data publikacji:
    2023
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    materials selection
    multi-criteria decision making
    MCDM
    finite element analysis
    FEA
    Opis:
    The current collapsible pot hauler uses a wooden frame, thus making much space in the working area of the fishing boat and also at this time challenging to find the best quality wood at this time. In this study, the wood material would replace by metal; the selection of the proper material is critically needed. A suitable material means the applied material has to deal with environmental conditions. Finding the appropriate material applied to the collapsible pot hauler; can be determined using a Multi-Criteria Decision Making (MCDM) approach. After selecting the proper material, the collapsible pot hauler simulates the material stress using the Finite Element Analysis (FEA) simulation. The material for the new model of collapsible pot hauler was selected using the WSM method. The material with the highest rank (selected) is AISI 304, with a preference value of 3.58. The static strength simulation using the FEA method utilizing Solidworks Software shows that the yield strength value is still below the material properties, which a maximum value is 200. MPa, the material safety factor is the minimum value above one, which is 1.24 on the line spool plate shafts. It means that the material AISI 304 is safe to be applied to the collapsible pot hauler.
    Źródło:
    Advances in Science and Technology. Research Journal; 2023, 17, 2; 289--298
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Influence of Geometrical Parameters of the Lock of the Blade-Disc Joint on Stress in the FEA and DIC Methods
    Autorzy:
    Kozakiewicz, Adam
    Grzejszczak, Olga
    Powiązania:
    https://bibliotekanauki.pl/articles/2024072.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    parameterization
    strength analysis
    dovetail joint
    DIC
    FEA
    stress distribution
    parametryzacja
    analiza wytrzymałościowa
    połączenie na jaskółczy ogon
    rozkład naprężeń
    Opis:
    In this paper, an assessment of strength properties of the existing blade-disc dovetail joint was presented, taking the parametric optimization of its geometry. A sensitivity of the analysis was carried out to determine the relationship between the selected geometric parameters and strength properties of the structure questioned. The results from experiments and computer simulations were compared. In addition, the fatigue life of the structure was analyzed for different materials and using the change of speed ranges and parameterization of geometry.
    Źródło:
    Advances in Science and Technology. Research Journal; 2021, 15, 1; 209-217
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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