Statični poves in lastna dinamika verižnice

Tomc, Brin (author), Slavič, Janko (mentor)

V zaključni nalogi je predstavljena uporaba metoda končnih razlik in metoda absolutnih vozliščnih koordinat za numerično analizo povesa daljnovodnega kabla in njegove dinamike. V teoretičnem uvodu je predstavljena oblika verižnice, ki jo zavzame daljnovodni kabel in njegova lastna dinamika. V metodologiji sta predstavljeni numerični metodi in njuna implemantacija za naš primer. Izkaže se, da je metoda absolutnih vozliščnih koordinat precej uporabna pri simuliranju daljnovodov, zaradi svoje natančnosti, zmožnosti obravnavanja velikih deformacij in možnosti ustreznega definiranja zunanjih sil kot sta veter in led.

• Language: Slovenian
• Keywords: poves verižnice, dinamika daljnovoda, metoda absolutnih vozliščnih koordinat, metoda končnih razlik, lastna frekvenca, vibracije
• Work type: Bachelor thesis/paper
• Organization: FS - Faculty of Mechanical Engineering
• Year: 2024
• PID: 20.500.12556/RUL-160573
• Publication date in RUL: 31.08.2024

Secondary language

• Language: English
• Title: Statics and dynamic analysis of catenary systems

Abstract

In final thesis the usage of Finite difference method and Absolute nodal coordinate formulation for numerical analysis of overhead power line sag and its dynamics is presented. In theoretical introduction the shape of the catenary and cables own dynamics are presented. In methodology the description and application of numerical methods for our own case is described. The Absolute nodal coordinate formulation method seems to be very useful in the field of symulating overhead power lines, because of its precision, ability to simulate large deformations and option to properly define external forces like wind and ice.

• Keywords: catenary sag, dynamics of overhead power lines, absolute nodal coordinate formulation, finite difference method, own frequency, vibrations