On precise modelling of very thin flexure hinges. - In: Proceedings of the 18th International Conference of the European Society for Precision Engineering and Nanotechnology, (2018), S. 87-88
The continuously rising demands for precision favour the application of monolithic compliant mechanisms with flexure hinges in various fields of precision engineering. It gives way to an almost frictionless and precise motion even under vacuum conditions. These advantages have made compliant mechanism an integral component of high precision weighing cells. A downside of compliant joints is their stiffness towards deflection, which limits the sensitivity of the overall system. Consequently, the flexure hinges are manufactured as thin as possible. The present limit in terms of manufacturing technology is within the range of 50 [my]m. The objective of predicting the behaviour of highest precision weighing cells by modelling is directly interconnected with the exact knowledge of the behaviour of flexure hinges in terms of stiffness. Especially, for flexure hinges with high aspect ratios, typically found in weighing cells, the existing analytical equations and finite element models show pronounced deviations. The present research effort is dedicated to a clarification of this observation. Structure mechanical finite element models are developed to identify the deviations of the models precisely. Results obtained are compared to analytical results and conclusions for the modelling of thin flexure hinges are drawn.
Influence of geometric scaling on the elasto-kinematic properties of flexure hinges and compliant mechanisms. - In: Mechanism and machine theory, Bd. 125 (2018), S. 220-239
Numerical calculation of compliant four-bar mechanisms with flexure hinges. - In: The 4th International Conference Mechanical Engineering in XXI Century, (2018), S. 267-270
A new prismatic crossed leaf-type flexure hinge based on topology optimization with discrete beam elements. - In: The 4th International Conference Mechanical Engineering in XXI Century, (2018), S. 243-246
State of the art precision motion systems based on compliant mechanisms. - In: The 4th International Conference Mechanical Engineering in XXI Century, (2018), S. 3-8
Contact pressure and flexibility of multipin dry EEG electrodes. - In: IEEE transactions on neural systems and rehabilitation engineering, ISSN 1558-0210, Bd. 26 (2018), 4, S. 750-757
Static behavior of weighing cells. - In: Journal of sensors and sensor systems, ISSN 2194-878X, Bd. 7 (2018), 2, S. 587-600
PC program for the analysis and synthesis of flexure hinges with different notch geometries :
PC-Programm zur Analyse und Synthese von Festkörpergelenken mit unterschiedlichen Aussparungsgeometrien. - In: Vierte IFToMM D-A-CH Konferenz 2018, (2018), insges. 2 S.
Influence of the orientation of flexure hinges on the elastokinematic properties :
Einfluss der Orientierung von Festkörpergelenken auf die elastokinematischen Eigenschaften. - In: Vierte IFToMM D-A-CH Konferenz 2018, (2018), insges. 2 S.
Nachgiebige Elemente für den Einsatz in Gassicherheitsventilen. - In: Vierte IFToMM D-A-CH Konferenz 2018, (2018), insges. 2 S.