Research Article
Correction of Transducers Mass Effects from the Measured FRFs in Hammer Impact Testing
Table 1
Comparison of frequencies of target, “measured,” and corrected FRFs.
| | 1st order/Hz | 2nd order/Hz | 3rd order/Hz | 4th order/Hz |
| Target | 486.3 | 1341 | 1480 | 1824 | Measured | 457.5 | 1246 | 1468 | 1789 | Corrected | 487.5 | 1333 | 1490 | 1845 | Errors before correction | 5.9% | 7.1% | 0.8% | 1.9% | Errors after correction | 0.2% | 0.6% | 0.7% | 1.2% |
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