Naslov
Optimised kinematic mount configuration for high- precision applications

Autori
Zelenika, Saša ; Marković, Kristina ; Rubeša, Josipa

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Annals of DAAAM for 2012. & Proceedings of the 23rd International DAAAM Symposium / Katalinić, Branko - Beč : DAAAM International Vienna, 2012, 319-322

ISBN
978-3-901509-91-9

Skup
23rd International DAAAM Symposium Intelligent Manufacturing & Automation: Focus on Sustainability

Mjesto i datum
Zadar, Hrvatska, 23.10.2012. - 27.10.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
kinematic mount ; stability ; model ; optimisation

Sažetak
The generic kinematic mount design configuration, designated as the Maxwell-type kinematic mount, is constituted by three V-grooves on one end and three balls on the other so as to achieve an exact constraint of all six degrees of freedom. The analysis of this coupling configuration comprises force and moment balance equations, as well as expressions for stress-strain and error motion calculations. For a determined external load, the geometry of the mount will thus imply the loads at each groove-ball interface and the respective contact point reactions. The calculation comprises the necessity to deal with the non-linear Hertzian theory of point contacts. This work recalls the limits of applicability of the available analytical approaches for the calculation of ball-V groove couplings employed in ultra-high precision positioning. The analytical results are validated experimentally. In the whole range of elastic deformations the correspondence of the theoretical values with the experimental ones is within the intervals of uncertainty of the latter. The calculation procedure is then used to assess the optimal characteristics of a kinematic mount employed to support a large vacuum chamber of a particle accelerator facility. Stability conditions for different design configurations are established.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Interdisciplinarne tehničke znanosti

POVEZANOST RADA