It is indicated that new balanced floating suspended assembly of shaker can meet test requirements. The manner of shock excitation must select stepped sinusoidal excitation to gas film system with strong non-linearity. 指出新颖的激振器平衡式浮动悬挂安装方式能够满足系统的测试要求,对气膜这样的强非线性系统,激振方式必须采用阶梯正弦激振。