Identification of Contact Stiffness between Brake Disc and Brake Pads Using Modal Frequency Analysis | Zendy

Haizhou Ding | Zendy; Qiang Zhu | Zendy; Hongming Lyu | Zendy

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Identification of Contact Stiffness between Brake Disc and Brake Pads Using Modal Frequency Analysis

Author(s) -

Haizhou Ding,

Qiang Zhu,

Hongming Lyu

Publication year - 2020

Publication title -

journal of engineering and technological sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.202

H-Index - 14

eISSN - 2338-5502

pISSN - 2337-5779

DOI - 10.5614/j.eng.technol.sci.2020.52.4.2

Subject(s) - disc brake , brake , stiffness , modal , modal analysis , brake pad , structural engineering , materials science , modal testing , finite element method , automotive engineering , engineering , composite material

The contact stiffness between brake disc and brake pads is a vital parameter that affects brake NVH performance through increasing the system stiffness and modal frequencies. In order to establish accurate contact behavior between brake parts for further research on precise modeling of disc brakes, a method of identifying the normal contact stiffness of a floating caliper disc brake was developed in this study based on modal frequency testing and finite element analysis. The results showed that contact stiffness increases with brake pressure due to compression of the friction material and increases with the disc mode order at lower-order modes but almost stays invariant at higher-order ones due to contact area variation.

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