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

Ken Nakano, Naohiro Kado, Chiharu Tadokoro, Takuo Nagamine

DOI Number
10.22190/FUME190415018N
First page
113
Last page
124

Abstract


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.

Keywords

Friction, Vibration, Instability, Stabilization, YAM Method

Full Text:

PDF

References


Den Hartog, J.P., 1956, Mechanical Vibrations (Fourth Edition), McGraw-Hill, New York.

Kado, N., Tadokoro, C., Nakano, K., 2013, Measurement error of kinetic friction coefficient generated by frictional vibration, Transactions of the Japan Society of Mechanical Engineers, Series C, 79, pp. 2635-2643.

Kado, N., Tadokoro, C., Nakano, K., 2014, Kinetic friction coefficient measured in tribotesting: influence of frictional vibration, Tribology Online, 9(2), pp. 63-70.

Nakano, K., Tadokoro, C., Kado, N., 2013, Yawing angular misalignment provides positive damping to suppress frictional vibration: basic applicability to disc brake systems, SAE International Journal of Passenger Cars: Mechanical Systems, 6, pp. 1493-1498.

Kado, N., Sato, N., Tadokoro, C., Skarolek, A., Nakano, K., 2014, Effect of yaw angle misalignment on brake noise and brake time in a pad-on-disc-type apparatus with unidirectional compliance for pad support, Tribology International, 78, pp. 41-46.

Tadokoro, C., Nagamine, T., Nakano, K., 2018, Stabilizing effect arising from parallel misalignment in circular sliding contact, Tribology International, 120, pp. 16-22.

Kado, N., Nakano, K., 2017, Stabilizing effect of in-plane angular misalignment in 2DOF sliding system with in-plane anisotropic stiffness, Mechanics Research Communications, 84, pp. 14-19.

Benad, J., Popov, M., Nakano, K., Popov, V.L., 2018, Stiff and soft active control of friction by vibrations and their energy efficiency, Forschung im Ingenieurwesen, 82(4), pp. 331-339.

Benad, J., Nakano, K., Popov, M., Popov, V.L., 2019, Active control of friction by transverse oscillations, Friction, 7(1), pp. 74-85.

Nakano, K., 2006, Two dimensionless parameters controlling the occurrence of stick-slip in a 1-DOF system with Coulomb friction, Tribology Letters, 24(2), pp. 91-98.




DOI: https://doi.org/10.22190/FUME190415018N

Refbacks

  • There are currently no refbacks.


ISSN: 0354-2025 (Print)

ISSN: 2335-0164 (Online)

COBISS.SR-ID 98732551

ZDB-ID: 2766459-4