摘要
指出Rayleigh修正解以谐波理论为基础,说明只要杆的横向尺寸远小于波长,横向动能便远小于轴向动能,则杆轴向振动的初等理论就能给出足够好的近似解,通过漳平西元大桥分析了简支板梁桥动力计算中初等的Euler-Bernoulli梁理论的精确性。
It points out that Rayleigh corrected solution is based upon harmonic theory. And it illustrates that if only the lateral size of pole is far smaller than wavelength, lateral power is far smaller than axial kinetic energy. Then the junior theory of axial vibration can give a approximate resolution which is good enough. Furthermore, it analyses the preciseness of general Euler-Bemoulli beam theory in the power calculation of simple supported board beam bridge through Zhangping Xiyuan Bridge.
出处
《山西建筑》
2009年第24期331-333,共3页
Shanxi Architecture
