Stability analysis of parametric resonance of a crack cylindrical shell with time-varying rotating speed
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Stability analysis of parametric resonance of a crack cylindrical shell with time-varying rotating speed
Vol. 26, Issue 10, (2011)
作者机构:
北京航空航天大学 能源与动力工程学院,北京,100191
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Published:2011
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XIN Jian-qiang, WANG Jian-jun. Stability analysis of parametric resonance of a crack cylindrical shell with time-varying rotating speed[J]. 2011, 26(10).
DOI:
XIN Jian-qiang, WANG Jian-jun. Stability analysis of parametric resonance of a crack cylindrical shell with time-varying rotating speed[J]. 2011, 26(10).DOI:
Stability analysis of parametric resonance of a crack cylindrical shell with time-varying rotating speed
A crack cylindrical shell model with time-varying rotating speed was established using the finite element method and get the system quality stiffness and damping matrix.On the basis of modal analysis
Bolotin's method was applied to explore the dynamic instability region.Examples of stability charts were worked out and the dependence of stability on various parameters
including crack length C
modal damping ratio ξ
rotating speed basic value Ω0
steady load factor α and dynamic load factor β was discussed.