DIFERENCIAIS NA PONTE TACOMA NARROWS: A EXPLICAÇÃO DO DESABAMENTO
DOI:
https://doi.org/10.61164/rmnm.v5i1.3663Keywords:
oscilações, ressonância, modelo não-linearAbstract
O desmoronamento da ponte suspensa Tacoma Narrows em 1940 fomentou pesquisas sobre a causa do colapso causado pela força do vento que provocava grandes oscilações verticais no seu leito. Também promoveu estudos mais avançados sobre o comportamento de pontes e outras edificações sob influência de forças externas. Estudos realizados na época mostraram que o desmoronamento foi provocado por um fenômeno linear, a ressonância. Porém pesquisas mais recentes afirmam que as causas foram por efeitos não-lineares. O presente trabalho pretende apresentar as justificativas de tais hipóteses, assim como uma análise de um modelo simplificado desta última.
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LAZER, A. C.; McKENNA, P. J. Large-Amplitude Periodic Oscillantions in Suspension Bribges: Some New Connections with Nonlinear Analysis. SIAM, Filadélfia. Vol. 32, n. 4, p. 537578, dez, 1990.
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