Table 3 Table of relative error between test and simulation modes.

From: Modal test and finite element updating of sprayer boom truss

Order

Experimental modal frequency /(Hz)

Simulate modal frequencies /(Hz)

Relative error %

First-order modalities

27.394

29.787

8.736

Second-order modalities

41.518

46.472

11.932

Third-order modalities

60.436

64.9

7.386

Fourth-order modalities

69.317

69.429

0.161

Fifth-order modalities

107.088

111.79

4.391

Sixth-order modalities

115.704

119.22

3.039

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