Farklı malzemelerden imal edilmis paletli rotorun titreşim analizi

Paletli kompresörler basınçlı hava üretiminde önemli bir yere sahiptir. Dönme ve basıncın etkisiyle paletli rotorlara değisik kuvvetler etki etmektedir. Bu kuvvetlerin etkisinde rotor statik ve dinamik zorlanmalara maruz kalmaktadır. Bu çalısmada, paletli kompresör rotor dökme demir, çelik, bakır ve pirinç malzemelerden modellenmis ve sonlu elemanlar metodu ile dinamik analizleri yapılmıstır. Rotorun doğal frekans ve mod sekilleri modal analiz ile her bir malzeme için belirlenmistir. Ayrıca, paletler üzerine gelen basınç kuvvetleri ve dönme hızı dikkate alınarak sönümlü harmonik analiz yapılmıstır. Bu analizde, malzemelerdeki frekans cevap sinyalleri elde edilmistir.

Vibration analysis of palette rotor manufactured from different materials

Palette compressors are important to produce compressed air. Depending on the velocity and pressure, different forces are effective on the rotor. These forces expose to the rotor as static and dynamic loads. In this study, the rotor was modeled as cast iron, steel, copper and brass and dynamic analysis are investigated using finite element method. Natural frequencies and mode shapes are determined for different materials using modal analysis. In addition, depending on pressure and angular velocity, damped harmonic analysis was carried out and frequency response signals are examined in the analyses.

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