Dynamic Stability of Rotating Blades with Transverse Cracks | Zendy

T.Y. Ng | Zendy; K.Y. Lam | Zendy; Hua Li | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Dynamic Stability of Rotating Blades with Transverse Cracks

Author(s) -

T.Y. Ng,

K.Y. Lam,

Hua Li

Publication year - 2002

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2003/176152

Subject(s) - transverse plane , ordinary differential equation , instability , axial symmetry , mechanics , beam (structure) , parametric statistics , bernoulli's principle , structural engineering , mathematics , differential equation , physics , mathematical analysis , engineering , statistics , thermodynamics

In this paper, the main objective is to examine the effects of transverse cracks on the dynamic instability regions of an axially loaded rotating blade. The blade is modeled as an Euler-Bernoulli beam. To reduce the governing equations to a set of ordinary differential equations in matrix form, Hamilton's principle is used in conjunction with the assumed-mode method. The crack is accounted for by considering the energy release rate and the parametric instability regions are obtained using Bolotin's first approximation. Benchmark results are presented for cracked rotating blades at different rotating speeds, crack lengths and crack positions

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research