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将轧后板带离散为若干纵向条元,用三次样条插值函数和正弦函数构造振型函数,根据动力学准则,将板形失稳判别归结为板形判别因子的求解。计算实例表明,本方法可靠、实用。
The strip is separated into a number of longitudinal bars, and the shape function is constructed by cubic spline interpolation and sine functions. According to the dynamic criterion, the plate shape instability is attributed to the determination of the plate shape discrimination factor. The calculation example shows that the method is reliable and practical.