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一、刚度系数的基本概念问题我国《动力机器基础设计规范》(以下简称《动规》)采用了质量-弹簧-阻尼器体系,简称质弹阻体系,有时为了简化把阻尼器省略,所以也简称质弹体系。它的基本假定是大块式动力机器基础可看作无弹性的刚体,地基看作无质量的弹簧。这个弹簧的范围如何确定?相当于怎样的弹簧?它的质量是否可省略?要不要考虑?如何考虑?这些问题,目前还很难完全从理论上推导,主要是通过实际试验来确定。
First, the basic concept of stiffness coefficient problem China’s “power machine basic design specification” (hereinafter referred to as “dynamic regulations”) uses the mass - spring - damper system, referred to as the quality of the elastic resistance system, sometimes to simplify the damper omitted, so also Called the quality bullet system. Its basic assumption is that a large-scale power machine foundation can be regarded as an inelastic rigid body and a foundation as a massless spring. How is the range of this spring determined? What is the equivalent of a spring? Is its quality omissible? Do not consider it? How to consider it? These problems are currently difficult to fully deduce theoretically, mainly through practical tests.