The dynamic stability of a rotating asymmetric cross section blade subjected to lateral parametric excitation

Sabuncu M., Evran K.

36th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2007, İstanbul, Türkiye, 28 - 31 Ağustos 2007, cilt.3, ss.2095-2108, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 3
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.2095-2108
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

The finite element method has been used to study the dynamic stability of a rotating blade of asymmetric aerofoil cross-section, which has been subjected to lateral parametric excitation. The Bernoulli-Euler beam theory is employed in the analysis. Stability is investigated for combination resonance regions. The effects of the beam length, stagger angle, coupling due to the centre of flexure distance from the centroid and rotation on the stability are examined. It has been observed that the effect of coupling depends on the beam length and as the length of the beam increases, the effect of rotation increases.