Autor: Wańkowicz, Jacek - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Durability forecast of long rod composite insulators operating under variable mechanical loading conditions
Autorzy:: Bielecki, Jerzy
Wańkowicz, Jacek
Powiązania:: https://bibliotekanauki.pl/articles/2135731.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: composite insulator
cyclic loads
fatigue strength
insulator testing
life estimation
mechanical strength
Opis:: Suspension line insulators are during their operation subject to static forces and variable loads, usually of a cyclic character. These variable loads have a significant impact on the mechanical durability of composite insulators. A method of providing durability forecast for composite line insulators based on fatigue characteristics has been proposed. The method allows providing durability forecast of insulators in a wide range of variable loadings, i.e. from quasi-static to high amplitude loadings.
Źródło:: Archives of Electrical Engineering; 2022, 71, 3; 701--715
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Impact of increased temperature of lower end-fitting of a composite long rod insulator on its mechanical strength under variable loads
Autorzy:: Bielecki, Jerzy
Kotowski, Piotr
Wańkowicz, Jacek
Powiązania:: https://bibliotekanauki.pl/articles/24202743.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: composite suspension line insulators
high temperature low sag
HTLS
conductor
mechanical insulator strength
material fatigue
insulator tests
cyclic load
changing load
Opis:: This paper describes results of tensile mechanical strength testing of two types of composite suspension line insulators from two manufacturers. In order to take into account the operation of composite insulators in overhead transmission lines with high-temperature low-sag (HTLS) conductors, the testing of their static and fatigue strength was performed at both ambient and elevated temperatures. The results showed that the static mechanical strength of composite insulators decreased with an increase in the temperature of the lower end fitting of the insulator, and proved that it followed a third-degree polynomial function. Calculations performed demonstrated that a significant cause of reduction in strength was the increase in the radial stress following the temperature increase in the crimped glassepoxy resin core of the insulator. The results of the fatigue strength testing demonstrated that the increase in the temperature of the lower end fitting of the insulator up to 85°C degree had a little effect on the fatigue strength of the tested composite insulators.
Źródło:: Archives of Electrical Engineering; 2023, 72, 2; 392--405
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Wańkowicz, Jacek" wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język