Yüksek hızlı demiryolu köprülerinde aşırı titreşimlerin azaltılmasında paralel bağlı ayarlı kütle sönümleyiciler için basit bir tasarım yöntemi

Öz

Bu çalışmada, birden fazla ayarlı kütle sönümleyicinin (AKS) paralel bağlanmasıyla elde edilen çok parçalı ayarlı kütle sönümleyicilerin (ÇAKS) optimum tasarım parametrelerinin elde edilmesini için basit bir yöntem önerilmiştir. Yöntem, esasen Den Hartog tarafından tek parçalı AKS için önerilen formüllerin ÇAKS sistemlerine genişletilmesidir. Önerilen metodun etkinliğini göstermek için yüksek hızlı demiryolu köprülerinde uygulama yapılmıştır. Ele alınan köprü, basit mesnetli Euler-Bernoulli kirişi olarak, tren ise bir dizi hareketli yükten meydana gelen kuvvet katarı olarak modellenmiştir. Hareket denklemleri, Newmark metoduyla sayısal olarak çözülmüştür. Çalışmanın sonuçları, önerilen yöntemle tasarlanan ÇAKS sistemlerinin yüksek hızlı demiryolu köprülerinde rezonans titreşimlerinin azaltılmasında iyi bir performans sergilediğini göstermiştir.

Anahtar Kelimeler

• Ayarlı kütle sönümleyici,titreşim kontrolü,yüksek hızlı tren,rezonans

Kaynakça

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