MECHANICAL STRUCTURE DESIGN TO AVOID FRICTION-INDUCED INSTABILITIES: IN-PLANE ANISOTROPY AND IN-PLANE ASYMMETRY

The stability of a two-degree-of-freedom (2DOF) sliding system with the velocity-weakening friction was examined by the eigenvalue analysis, where the in-plane anisotropy and the in-plane asymmetry were considered. The obtained eigenvalues were organized by using the minimum modal damping ratio as t...

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Bibliographic Details
Published inFacta Universitatis. Series: Mechanical Engineering Vol. 17; no. 2; pp. 113 - 124
Main Authors Nakano, Ken, Kado, Naohiro, Tadokoro, Chiharu, Nagamine, Takuo
Format Journal Article
LanguageEnglish
Published Nis University of Nis 26.07.2019
University of Niš
Subjects
Anisotropy
Asymmetry
Damping ratio
Dimensional stability
Eigenvalues
Misalignment
Modal damping
Sliding
Yaw
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Summary:The stability of a two-degree-of-freedom (2DOF) sliding system with the velocity-weakening friction was examined by the eigenvalue analysis, where the in-plane anisotropy and the in-plane asymmetry were considered. The obtained eigenvalues were organized by using the minimum modal damping ratio as the stability maps. Selecting a stable point in the stability map corresponds automatically to embedding the Yaw-Angle-Misalignment (YAM) method in the mechanical structure design to avoid the instability. If we accept the mechanical structure design of sliding systems with the in-plane anisotropy and the in-plane asymmetry, we can find new stable conditions spread widely in the two-dimensional space, which are invisible from the conventional point of view.
ISSN:0354-2025
2335-0164
DOI:10.22190/FUME190415018N