CAJ | 학술논문

采用Ambartsumyan改进的薄板理论,考虑剪切变形、转动惯量及板中性面弯曲正应力影响,分析了移动的荷载引起矩形薄板动力响应问题.荷载、位移采用双Fourier级数法,推导了由位移表示的薄板控制方程.数值计算分析了荷载速度、板尺寸等对板动力响应的影响,同时对比分析了改进薄板理论与经典薄板理论计算结果的差异.
채용Ambartsumyan개진적박판이론,고필전절변형、전동관량급판중성면만곡정응력영향,분석료이동적하재인기구형박판동력향응문제.하재、위이채용쌍Fourier급수법,추도료유위이표시적박판공제방정.수치계산분석료하재속도、판척촌등대판동력향응적영향,동시대비분석료개진박판이론여경전박판이론계산결과적차이.
The response of a rectangular plate subjected to a moving load is investigated.An improved plate theory which includes the effects of shear deformation and rotatory inertia as well as normal stress to the plate surface is introduced and the equation of motion in terms of single displacement is derived.Solutions are obtained by applying Fourier transforms.The effects of the approximation methods of the plate theory on the response of the displacement and the stress couples are examined with regard to the load velocity,plate dimensions,etc.,in addition to the comparison with the results deriving frrom the classical plate theory.