论文部分内容阅读
(一)前言在动力机器基础规范里,规定了锻锤基础的最大允许振幅。正确测量已有锻锤基础振幅是保证锻锤完好工作、基础不损坏的先决条件,并为今后设计锻锤基础提供设计依据。锻锤基础振动和土建类其它类型振动相似,振动频率多在几赫芝到几十赫芝,振幅从几十微米到几毫米,系统阻尼一般都比较大,阻尼比多在0.1～0.4。计量振幅多以位移量为主。
(A) of the preamble In the basic norms of power machines, the maximum allowed amplitude forging hammer foundation. Correctly measuring the amplitude of the existing forging hammer foundation is a prerequisite for ensuring perfect forging hammer work without damaging the foundation, and provides the design basis for designing forging hammer foundation in the future. Forging hammer foundation vibration and other types of civil engineering similar to the vibration frequency of more than a few Hertz Jihe to dozens of Hertz, the amplitude from tens of microns to a few millimeters, the system damping are generally larger damping ratio of more than 0.1 to 0.4. Measured amplitude and displacement-based.