On the Identification of Dynamic Friction Material Properties under Brake Squeal Relevant Loading Conditions

• Autorzy: Hornig S. A. , Wagner U. v.
• Języki publikacji: EN

Abstrakty

EN

Brake squeal is a disruptive high frequency noise generated by friction-induced self excited vibrations of the brake system. Great effort is spent on the improvement of brake squeal prediction reliability, using mathematical-mechanical simulation models. In this context friction material properties are one of the decisive factors for the successful brake squeal simulation. Because of the nonlinear and load dependent friction material behavior, it is mandatory to identify friction material properties under squeal typical loading conditions. For this reason a measurement method reproducing squeal typical operating conditions is under development by the authors’ research group. The present paper shows the actual development stage of this measuremet method, presenting the dynamic compression test rig, estimated friction material characteristics, and emphasizing important influence factors on the dynamic compression measurement results. In this context a particular focus is set on the derivation of correction factors when converting the measured stiffness of specimens with restriced dimensions and boundary conditions into material stiffness.

Słowa kluczowe

EN

brake squeal; material stiffness; component stiffness; correction factors; dynamic compression; test rig; friction material; correction factor

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2012
• Tom: Vol. 36, No. 3
• Strony: 29--44
• Opis fizyczny: Bibliogr. 9 poz., il., wykr.

Twórcy

autor

Hornig S. A.

• Technische Universität Berlin. Chair of Mechatronics and machine Dynamics, Department of Analpplied Mechanics

autor

Wagner U. v.

• Technische Universität Berlin. Chair of Mechatronics and machine Dynamics, Department of Analpplied Mechanics

Bibliografia

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• 3. Bellmann, L., 2008, Untersuchung zu den viskoelastischen Eigenschaften von Bremsbel ägen im Parameterbereich des Bremsenquietschens, Doctor Thesis, Leibniz Universität Hannover.
• 4. Brecht, J., Elvenkemper, A., Betten, J., Navrath, U., 2003, Elastic Properties of Friction Materials, Proceedings of the SAE 2003 Noise and Vibration Conference and Exhibition, 2003-01-333.
• 5. Breuer, B., Bill, K.H., 2004, Bremsenhandbuch, 2. Auflage, Vieweg, Wiesbaden. Hochlenert, D., 2009, Nonlinear stability analysis of a disk brake model, Nonlinear Dynamics, 58(1), 63-73.
• 6. Hochlenert, D., von Wagner, U., Hornig, S., 2009, Bifurcation Behavior and Attractors in Vehicle Dynamics, Machine Dynamics Problems, 33, 2, 57-73.
• 7. Hornig, S., von Wagner, U., 2011, Experimental identification of brake lining material properties subjected to combined static and high frequency loading - A step towards a better prediction of disc brake squeal?, Proceedings of the SAE 2011 Noise and Vibration Conference and Exhibition, 2011-01-2353.
• 8. Hornig, S., 2011, Experimental identification of brake lining material properties subjected to combined static and high frequency loading - A step towards a better prediction of disc brake squeal?, Oral presentation, SAE 2011 Noise and Vibration Conference and Exhibition.
• 9. Steffen, T., 2001, Contact FE Model to Simulate Disc Brake Squeal, Proceedings of the 19th International Modal Analysis Conference.