| Title |
Self-powered wireless sensor system application for cutting process control / |
| Authors |
Ostaševičius, V ; Jūrėnas, V ; Karpavičius, P ; Baskutienė, J |
| DOI |
10.5755/j01.mech.23.3.17957 |
| Full Text |
|
| Is Part of |
Mechanika.. Kaunas : KTU. 2017, vol. 23, no. 3, p. 456-461.. ISSN 1392-1207. eISSN 2029-6983 |
| Keywords [eng] |
piezoelectric cantilever ; tool vibrations ; charg-ing time |
| Abstract [eng] |
In the article a self-powered wireless sensor used for milling operation control is presented. Source of vibrations suitable for energy harvesting and generation has been accurately identified, experimental work on CNC machine performed and was determined that the highest amplitude vibrations for the milling tool are present during its tooth contact with the workpiece. During investigation, it was determined that based on feed rate and number of teeth on the cutter, the frequency of tooth contact with workpiece is in the range of 150 – 300 Hz, based on that a piezoelectric cantilever with natural frequency falling within this frequency range scope has been chosen. In order to increase the efficiency of energy generation by the piezoelectric transducer adjustment of its natural frequency by adding proof mass for course control and connection of piezoelectric layers for fine tuning has been proposed. Proposed energy generation, storage and wireless signal representing tool condition transmission circuit for the device. Experiments were per-formed, that allowed to record milling tool‘s wear during machining and evaluate energy generation dependence on set milling parameters. Designed and validated prototype device is suitable for control of milling process and can be effectively used to increase milling accuracy of thin-walled workpieces. |
| Published |
Kaunas : KTU |
| Type |
Journal article |
| Language |
English |
| Publication date |
2017 |
| CC license |
|
