尽管变分定理与虚功原理之间有很紧密的相似关系,然而对前者的研究仍然是有价值的。
In spite of the very close affinity between the variational theorems and the principle of virtual work the study of the former is worth-while.
从虚功原理出发,证明了薄板小挠度弯曲问题的功的互等定理,并由此推出了求解矩形薄板自然频率的公式。
Using the virtual work principle, this paper proved the reciprocal theorem of work of thin plates with small deflections, and obtained the formula of the natural frequency of square plates.
尽管变分定理与虚功原理之间有很紧密的相似关系,然而对前者的研究仍然是有价值的。
In spite of the very close affinity between the variational theorems and the principle of virtual work, the study of the former is worth-while.
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