摘要
利用弹性地基梁在纵向上的无限周期性,在频率-波数域内探讨了在Dirac脉冲作用下弹性地基梁动力响应的Floquet变换解法,并利用Fourier变换解法进行了验证.结果表明Floquet变换解法在解决弹性地基梁动力响应上具有一定的适用性,为此类问题的解答开辟了一个新的途径.
Based on the infinite periodicity of a beam on elastic foundation in the longitudinal direction, the dynamic response of the beam subjected to a Dirac impulse is analyzed by the Floquet transformation method in the frequency-wavenumber domain, which is validated by Fourier transformation method. The results show that the Floquet transformation method can be used to calculate the dynamic response of the beam on elastic foundation, which is a new approach to this problem.
出处
《北京交通大学学报》
EI
CAS
CSCD
北大核心
2008年第4期108-110,共3页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
国家自然科学基金资助项目(50538010)
关键词
动力响应
弹性地基梁
Floquet变换解法
频率-波数域
dynamic response
beam on elastic foundation
Floquet transformation method
frequency-wavenumber domain
