Table 7 Updating results and relative errors of the response surface method.
From: Modal test and finite element updating of sprayer boom truss
Order | Experimental modal frequency /(Hz) | Modal frequency after updating /(Hz) | Relative error (%) |
|---|---|---|---|
First-order modalities | 27.394 | 27.984 | 2.154 |
Second-order modalities | 41.518 | 43.332 | 4.369 |
Third-order modalities | 60.436 | 60.731 | 0.488 |
Fourth-order modalities | 69.317 | 66.126 | 4.603 |
Fifth-order modality | 107.088 | 104.98 | 1.968 |
Sixth-order modalities | 115.704 | 112.12 | 3.098 |
