近年来在建筑部门中,塑料门的应用日益广泛.门上装有拉力弹簧,关闭时其冲击力的大小,直接影响到塑料门的结构设计和使用寿命.为此,做了如下的计算与测试工作.限于篇幅,本文省略去大量的推导与计算过程.1 关门时瞬时冲击力计算图1为塑料门结构简图.各部分截面的几何性质及参数列入表1中. In recent years in the construction sector, the plastic door is more and more widely used.Radial spring loaded on the door, the impact of the size of the closure, a direct impact on the plastic door structure design and service life.To this end, made the following calculations and tests Work. Due to space limitations, this article omits a large number of derivation and calculation process .1 instantaneous impact force calculation at closing Figure 1 is a schematic diagram of the plastic door structure geometry of each section and the parameters listed in Table 1.