Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge
I bruteknikk er det viktig å forstå hvordan vind påvirker bruer for å kunne lage trygge bruer. Det er spesielt viktig for lange bruer ettersom de er mer utsatt for vindindusert dynamisk respons. I denne oppgaven har vindindusert dynamisk respons av Hålogalandsbrua blitt studert og beregnet i tids- o...
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3090889 2023-10-25T01:39:15+02:00 Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge Hansen, Sebastian Knedahl Øiseth, Ole André Fenerci, Aksel 2023 application/pdf https://hdl.handle.net/11250/3090889 eng eng NTNU no.ntnu:inspera:146720801:35303164 https://hdl.handle.net/11250/3090889 Master thesis 2023 ftntnutrondheimi 2023-09-27T22:46:26Z I bruteknikk er det viktig å forstå hvordan vind påvirker bruer for å kunne lage trygge bruer. Det er spesielt viktig for lange bruer ettersom de er mer utsatt for vindindusert dynamisk respons. I denne oppgaven har vindindusert dynamisk respons av Hålogalandsbrua blitt studert og beregnet i tids- og frekevensplanet. Ved å anta et aeroelastisk system kan beregningene bli utført både i tids- og frekvensplanet som gjør at løsningene kan sammenlignes og verifiseres. Tidsplansløsningen ble beregnet med 20 tidsseriesimuleringer av vindfeltet ved bruk av Monte Carlo metoden og ga tilfredstillende samsvar med frekvensplansløsningen. I tillegg til vindindusert dynamisk repsonse ble flutter stabiliteten bergenet og ekstremverdianalyse av den dynamiske responsen ble gjennomført. Den kritiske middelvinden ble funnet gjennom eigenverdianalyse av tilstandsmodellen av bevegelsesligningen og ble funnet til å være 80.69 m/s. In bridge engineering it is important to understand how wind affects bridges in order to obtain safe bridge designs. This is especially important for long-span bridges which are more prone to wind induced dynamic response. In this thesis the wind induced dynamic response of the Hålogaland Bridge have been studied and calculated both in time and frequency domain. By assuming an aeroelastic system the calculations can be performed in both domains which is useful for comparing and verification of the results. The time domain response was performed with 20 time series simulations of the wind field generated by the Monte Carlo method. The time and frequency response were successfully obtained and coincided with a fairly high accuracy. In addition to the wind induced dynamic response, the flutter stability have been calculated and an extreme value analysis of the response have been performed. The critical mean wind velocity was obtained from the eigenvalue analysis of the state space model of the equation of motion and found to be 80.69 m/s. Master Thesis Hålogaland NTNU Open Archive (Norwegian University of Science and Technology) |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
I bruteknikk er det viktig å forstå hvordan vind påvirker bruer for å kunne lage trygge bruer. Det er spesielt viktig for lange bruer ettersom de er mer utsatt for vindindusert dynamisk respons. I denne oppgaven har vindindusert dynamisk respons av Hålogalandsbrua blitt studert og beregnet i tids- og frekevensplanet. Ved å anta et aeroelastisk system kan beregningene bli utført både i tids- og frekvensplanet som gjør at løsningene kan sammenlignes og verifiseres. Tidsplansløsningen ble beregnet med 20 tidsseriesimuleringer av vindfeltet ved bruk av Monte Carlo metoden og ga tilfredstillende samsvar med frekvensplansløsningen. I tillegg til vindindusert dynamisk repsonse ble flutter stabiliteten bergenet og ekstremverdianalyse av den dynamiske responsen ble gjennomført. Den kritiske middelvinden ble funnet gjennom eigenverdianalyse av tilstandsmodellen av bevegelsesligningen og ble funnet til å være 80.69 m/s. In bridge engineering it is important to understand how wind affects bridges in order to obtain safe bridge designs. This is especially important for long-span bridges which are more prone to wind induced dynamic response. In this thesis the wind induced dynamic response of the Hålogaland Bridge have been studied and calculated both in time and frequency domain. By assuming an aeroelastic system the calculations can be performed in both domains which is useful for comparing and verification of the results. The time domain response was performed with 20 time series simulations of the wind field generated by the Monte Carlo method. The time and frequency response were successfully obtained and coincided with a fairly high accuracy. In addition to the wind induced dynamic response, the flutter stability have been calculated and an extreme value analysis of the response have been performed. The critical mean wind velocity was obtained from the eigenvalue analysis of the state space model of the equation of motion and found to be 80.69 m/s. |
author2 |
Øiseth, Ole André Fenerci, Aksel |
format |
Master Thesis |
author |
Hansen, Sebastian Knedahl |
spellingShingle |
Hansen, Sebastian Knedahl Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge |
author_facet |
Hansen, Sebastian Knedahl |
author_sort |
Hansen, Sebastian Knedahl |
title |
Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge |
title_short |
Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge |
title_full |
Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge |
title_fullStr |
Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge |
title_full_unstemmed |
Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge |
title_sort |
time and frequency domain calculations of the wind induced dynamic response of the hålogaland bridge |
publisher |
NTNU |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3090889 |
genre |
Hålogaland |
genre_facet |
Hålogaland |
op_relation |
no.ntnu:inspera:146720801:35303164 https://hdl.handle.net/11250/3090889 |
_version_ |
1780734462848401408 |