提出了考虑剪切变形时变截面梁弯曲和稳定计算的传递矩阵法。

The transfer matrix method for the bending and stability of the variable section beams with shear deformation is presented.

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计算了对称截面粱在不同边界条件下的高阶固有频率，讨论了转动惯量及剪切变形效应对各阶固有频率的影响。

The high natural frequencies of symmetrical section beam with different constraints are calculated in detail, and effects of rotary inertia and shearing deformation are given.

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提出了一种通过测量方坯截面面积在线计算方坯质量的方法，通过该方法可以实现方坯的定重剪切。

A new on-line calculation method for billet weight by measuring its cross section was presented, and cut-by-weight of billets could be realized by this method.

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