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Open AccessArticle

A New Stiffness Performance Index: Volumetric Isotropy Index

Department of Mechanical Engineering, Izmir Institute of Technology, Urla, İzmir 35430, Turkey
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Machines 2019, 7(2), 44; https://doi.org/10.3390/machines7020044
Received: 8 April 2019 / Revised: 10 June 2019 / Accepted: 17 June 2019 / Published: 18 June 2019
(This article belongs to the Special Issue Advances of Italian Machine Design)
A new index for a precise calculation of a manipulator’s stiffness isotropy is introduced. The proposed index is compared with the conventionally used stiffness isotropy index by making use of the investigation on R-CUBE manipulator. The proposed index is shown to produce relatively more precise results from which a higher number of isotropic poses are detected. View Full-Text
Keywords: stiffness modelling; performance indices; condition number; volumetric isotropy index; parallel manipulator stiffness modelling; performance indices; condition number; volumetric isotropy index; parallel manipulator
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Görgülü, İ.; Dede, M.İ.C. A New Stiffness Performance Index: Volumetric Isotropy Index. Machines 2019, 7, 44.

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