本文仅对惯性振动落砂机的理论分析中,从数学分析的基础上,根据激振力的性质不同,阐明了动力放大系数及振幅——频率特性曲线的物理意义。并结合落砂机的实际工作状况进行了分析比较,以利合理引用,从而澄清不少文献资料中,在这一概念上的议论。惯性振动落砂机是铸造生产中使用比较广泛的一种,尤其在生产线上具有工作可靠和适 Based on the mathematical analysis, the physical meaning of dynamic amplification factor and amplitude-frequency characteristic curve is clarified according to different properties of exciting force. And with the actual working conditions of the sand machine were analyzed and compared for the benefit of a reasonable reference to clarify a lot of literature, in this concept of argument. Inertial vibration off the sand machine is used in casting a more extensive production, especially in the production line with reliable and suitable