کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
782828 | 1465072 | 2007 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Vibration and reliability of a rotating beam with random properties under random excitation Vibration and reliability of a rotating beam with random properties under random excitation](/preview/png/782828.png)
In this paper, vibration and reliability of a rotating beam with random properties under random excitations are studied. The rotating beam is under a stochastic load modeled as a stationary white noise. The cross-sectional area, elasticity modulus, moment of inertia, shear modulus, damping coefficient, mass density and rotational speed are modeled as random variables. To develop the equations of motion, the finite element method and space state analysis are applied. In order to consider the randomness of properties, a second order perturbation method is used. The effects of rotational speed, setting angle, hub radius, variances of random properties, correlation of random variables and damping matrix forms on the vibration and reliability of rotating beams, are studied completely.
Journal: International Journal of Mechanical Sciences - Volume 49, Issue 12, December 2007, Pages 1377–1388