In the theory of elastic thin plates, the bending of a free rectangular plate on the elastic foundation is also a difficult problem.
在弹性地基上的自由矩形板的弯曲，在弹性薄板理论中也是个难题。
The general equations of principal curvature derived from differential geometry overcame the limitations of previous equations derived from the theory of elastic thin plate with small deflection.
由微分几何学原理得到计算主曲率的一般公式，克服了由薄板小扰度弯曲理论得到的主曲率计算公式的局限性。
According to the elastic thin plate theory and vibration theory, a boundary element method (BEM) was used to analyze the frequency characteristics of a thin plate in lateral free vibration.
根据弹性薄板理论和振动理论，运用边界元法(BEM)分析了薄板弯曲自由振动的频率特性。
Based on elastic stability theory of thin plate, the maximum high-depth ratio of these two kinds of web under bending is deduced.
基于薄板的弹性稳定理论，确定了在纯弯状态下空腹受弯钢构件孔口上方腹板和孔间腹板的最大高厚比。
Based on elastic stability theory of thin plate, the maximum high-depth ratio of these two kinds of web under bending is deduced.
基于薄板的弹性稳定理论，确定了在纯弯状态下空腹受弯钢构件孔口上方腹板和孔间腹板的最大高厚比。
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