关键字-Damping.pdf

节选段落一：
The requested damping is applied
only to the parts in the set. If PSID = 0, the
damping is applied to all parts except those
referred to by other.
*DAMPING_FREQUENCY_RANGE cards.
(零件集 ID。需求阻尼仅应用于零件集中的
零件。如果 PSID=0，阻尼应用于*阻尼_频
率_范围卡片提及的部件之外的所有部件。)


节选段落二：
Remarks:(附注)
This feature provides approximately constant damping (i.e. frequency-independent)
over a range of frequencies Flow < F < Fhigh. It is intended for small damping ratios
(e.g. < 0.05) and frequency rang- es such that Fhigh/ Flow is in the range 10-300.


节选段落三：
The
drawback to this method of damping is that it re- duces the dynamic stiffness of the
A
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