一、引 言 近年来,在中、小型压缩机范畴内,普遍采用减振器代替基础,实现了所谓无基础组装化。组装化的主要优点是减少了用户的安装费用和时间。 基础和减振器尽管在形式上不同,但它们限制机器振动的基本原理却是一样的,都是利用弹性系统的动力学特性;所不同的是基础利用土壤本身的弹性,而减振器则是利用其中特制的弹性元件。 I. Introduction In recent years, in the medium and small-scale compressors, the general use of shock absorbers instead of the basis to achieve the so-called non-based assembly. The main advantage of assembly is to reduce the user’s installation costs and time. The foundation and the shock absorbers, although different in form, have the same basic principle of limiting the vibration of the machine. They all make use of the dynamic characteristics of the elastic system. The difference is that the foundation makes use of the elasticity of the soil itself, while the shock absorber Is to use one of the special elastic components.