【摘要】 运用傅立叶变换和留数理论得到了变速移动荷载下无限长Winkler梁稳态动力响应的解析表达式。与Kenney的经典解求解过程相比,文中给出的求解过程具有更加明确的物理意义。进一步探讨了阻尼在求解过程中的作用,并指出了经典解在处理阻尼时存在的问题。更多还原

【Abstract】 The achievement of steady-state dynamic response of rail is very important for the applications in environmental engineering. In this paper an analytic solution of Winkler beam under the action of variety-velocity moving loads was given based on Fourier transform and the theorem of residue. It’s noticeable that the significance of the process is more obvious than Kenney’s. The affection of damping was discussed clearly, and the ignorance of Kenney’s solution was pointed out.更多还原