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Transportforum (VTI)
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Session 3b Mikael Ögren.pdf
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Session 3b Mikael Ögren.pdf
1.
Markvibrationer från tågtrafik
Mikael Ögren mikael.ogren@vti.se
2.
TVANE
3.
Indata
4.
FEM/BEM
1 ∂2 p ∇2 p − 2 2 = q c ∂t
5.
Vibrationskällor • Långvågiga
ojämnheter • Varierande styvhet • Växlar
6.
Åtgärder –
Vibrationer • Vibrationsisolering av spåret • Mekanisk kortslutning • Utbredningsåtgärder
7.
Rådata
8.
Tidsvägning
9.
Maximalnivå
11.
Kungsb. mark
12.
Kungsb. hus
16.
Alingsås mark
17.
Alingsås hus
18.
Starkare
vibrationer • Ej detaljkunskap om varje byggnad • Statistiska metoder
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