A Novel Engine Mount with Semi-Active Dry Friction Dumping

verfasst von

M. Lorenz, Bodo Heimann, V. Härtel

Abstract

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.

Organisationseinheit(en)

Institut für Mechatronische Systeme

Externe Organisation(en)

Continental AG

Typ

Artikel

Journal

Shock and Vibration

Band

13

Seiten

559-571

Anzahl der Seiten

13

ISSN

1070-9622

Publikationsdatum

2006

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

Elektronische Version(en)

https://doi.org/10.1155/2006/263251 (Zugang: Offen)