Shock and Vibration

Shock and Vibration / 2006 / Article

Open Access

Volume 13 |Article ID 263251 |

M. Lorenz, B. Heimann, V. Härtel, "A Novel Engine Mount with Semi-Active Dry Friction Damping", Shock and Vibration, vol. 13, Article ID 263251, 13 pages, 2006.

A Novel Engine Mount with Semi-Active Dry Friction Damping

Received19 Jul 2006
Revised19 Jul 2006


In this paper the authors present a semi-active engine mount with a controllable friction damper. The normal force of the friction contact is applied by an electromagnetic actuator and can be varied dynamically. The nonlinear current-force-relation of the actuator is linearized. To account for wear and assembly tolerances, an initialization method is developed, that is based on indirect measurement of the actuators inductance. The friction contact is made up of industrial friction pads and a friction rod of steel. The friction model used is suitable especially for small oscillations of the friction damper. The control policy imitates viscous damping forces that exert a minimum of harmonics. Damping is activated only when necessary. Finally the friction mount is compared to the original mount in a row of test rack experiments and also in the car.

Copyright © 2006 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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