请推荐一些ODS的学习资料吧。

sungw

我现在只有一片is it a mode shape....?
还有其他书籍或文献么？

sonustc

Operational deflection shapes (ODS’s) can be measured directly by relatively simple means.  They provide very useful information for understanding and evaluating the absolute dynamic behavior of a machine, component or an entire structure.

Traditionally, an ODS has been defined as the deflection of a structure at a particular frequency.
However, an ODS can be defined more generally as any forced motion of two or more points on a structure.  A shape is the motion of one point relative to all others.

Why measure ODS’s?

Measuring ODS’s can help answer the following vibration related questions:
•        How much is a machine moving?
•        Where is it moving the most, and in what direction?
•        What is the motion of one point relative to another (ODS)?
•        Is a resonance being excited? What does its mode shape look like?
•        Is there structure-born noise?
•        Do corrective actions reduce noise or vibration levels?