Vibration of beams with general boundary conditions due to a moving random load

被引：0
|
作者：
M. Abu-Hilal
机构：
[1] Department of Mechanical and Industrial Engineering,
[2] Applied Sciences University,undefined
[3] Amman 11931,undefined
[4] Jordan,undefined
来源：
Archive of Applied Mechanics | 2003年 / 72卷 / 9期
关键词：
Keywords Vibration, Beam, Moving load, Random load;
D O I：
10.1007/s00419-002-0228-7
中图分类号：
学科分类号：
摘要：
 The transverse vibrations of elastic homogeneous isotropic beams with general boundary conditions due to a moving random force with constant mean value are analyzed. The boundary conditions considered are: pinned–pinned, fixed–fixed, pinned–fixed, and fixed–free. Based on the Bernoulli beam theory, the problem is described by means of a partial differential equation. Closed-form solutions for the variance and the coefficient of variation of the beam deflection are obtained and compared for three types of force motion: accelerated, decelerated and uniform. The effects of beam damping and speed of the moving force on the dynamic response of beams are studied in detail.
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页码：637 / 650
页数：13
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