| contributor author | Ahmadi, K. | |
| date accessioned | 2019-02-28T11:05:01Z | |
| date available | 2019-02-28T11:05:01Z | |
| date copyright | 12/14/2017 12:00:00 AM | |
| date issued | 2018 | |
| identifier issn | 2166-0468 | |
| identifier other | jmnm_006_01_011006.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4252492 | |
| description abstract | An output-only modal analysis (OMA) approach is presented to obtain the direct frequency response function (FRF) at the tip of the tool in micromilling setups. White noise input is provided using acoustic excitation and the resulting vibrations are measured using a laser Doppler vibrometer (LDV). Autoregressive (AR) identification is used to extract the natural frequencies and damping ratios of the structural modes of the milling setup, and mass-sensitivity analysis is used to obtain modal stiffness values. The accuracy of the tool tip FRFs that are constructed using OMA is verified by comparing them against the FRFs that are measured using impulse hammer tests. The direct FRF at the tool tip is an essential component in predicting and avoiding excessive and unstable vibrations in milling operations, and the presented approach provides a practical method for the direct measurement of the tool tip FRF in micromilling where the application of traditional hammer tests is not possible. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Output-Only Modal Analysis of Micromilling Systems | |
| type | Journal Paper | |
| journal volume | 6 | |
| journal issue | 1 | |
| journal title | Journal of Micro and Nano-Manufacturing | |
| identifier doi | 10.1115/1.4038434 | |
| journal fristpage | 11006 | |
| journal lastpage | 011006-9 | |
| tree | Journal of Micro and Nano-Manufacturing:;2018:;volume( 006 ):;issue: 001 | |
| contenttype | Fulltext | |
