- Tytuł:
- Control of a workpiece holder with piezo-electric-mechanical actuation
- Autorzy:
-
Bakker, O. J.
Popov, A.
Ratchev, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1429345.pdf
- Data publikacji:
- 2008
- Wydawca:
- Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
- Tematy:
-
fixturing technology
active fixture
fixture control
dynamics modelling
piezoelectric actuation - Opis:
- The main focus of research in part-fixture mechanics has been in the static deformation and part constraints. Little attention has been paid to the dynamic behaviour of these systems. However, the dynamics of the system largely determines the obtained precision during the machining process. The part is modelled as a lumped mass-spring model and the clampers and locators of the fixture are modelled as spring-dampers. The fixture frame is considered to be much stiffer than the locators, such that it provides zero displacement boundary conditions to the locators. In this study a piezoelectric actuator is utilized to provide adaptive clamping forces. The analysis has shown that position feedback can be used to minimize unnecessary displacement of the workpiece. Additionally, a lag filter can improve the steady state response.
- Źródło:
-
Journal of Machine Engineering; 2008, 8, 3; 17-28
1895-7595
2391-8071 - Pojawia się w:
- Journal of Machine Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł