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Frequency assignments of single component eigenmodes through structural modifications based on a novel approach for brake squeal suppression
Publikationstyp
Conference Paper
Date Issued
2022-01-01
Author(s)
Start Page
4334
End Page
4343
Citation
30th International Conference on Noise and Vibration Engineering (ISMA 2022)
Contribution to Conference
30th International Conference on Noise and Vibration Engineering, ISMA 2022
Scopus ID
ISBN
[9789082893151]
Brake squeal adversely affects the driving comfort experienced by the customer. In most cases, mode coupling is held to be responsible for brake squeal, where two adjacent frequencies approach and coalesce due to a changing friction coefficient between the brake disc and brake linings. Several approaches increase the distance between these coupling frequencies by shape modifications to decrease the propensity to squeal at a present frequency while not considering other frequencies, enabling a mode coupling formation at another frequency. Therefore, we introduce a novel approach to identify locations and the amount of material to be iteratively changed for mainly influencing one prioritized frequency by topology optimization. Simultaneously, the other considered frequencies are fixed to a small varying frequency change relative to their original value. Numerical investigations on finite element models of complex structures reveal the potential of the introduced approach while considering additive manufacturing restrictions.