We put the two main engineering machine loading which are sinusoidal wave load and step load, and the results indicate that the dynamic responds are satisfied for the needs of the experiments.
加载工程机械主要的两种加载模式正弦波载荷和阶跃载荷，试验台动态仿真的结果表明系统动态响应性能能够满足试验要求；
Critical stress and inertial exponent are treated as two characteristic parameters for the asymmetric dynamic buckling of cylindrical shells under axial step loading.
对于轴向阶梯载荷下圆柱壳的非轴对称动力屈曲，将临界应力和屈曲惯性指数作为双特征参数求解。
Methods Tests were con ducted by two-step loading method.
方法采用二级台阶负荷试验法。
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