Instabilities Induced by Thermal-Mechanical Couplings in Clutch and Brake Discs Univ. of Denver

Format:

Conference/Event

Author/Creator:

Wu, Yi Yi, author.

Contributor:

Chen, Zhuo

Shaahu, Joseph-Shaahu

Conference Name:

Brake Colloquium & Exhibition - 36th Annual (2018-10-14 : Palm Desert, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractThe interaction between thermal buckling and thermoelastic instability (TEI) can play an importance role in frictionally-excited hot spot development in automotive disc brakes. In this study the distributions of temperature variations were obtained from the eigenmodes based on the classical TEI analyses. The critical buckling temperatures and the associated deformation modes were subsequently computed using the commercial software ABAQUS. The effects of sliding speed, coefficient of friction and boundary conditions have been investigated for both banding and focal modes. It is concluded that the TEI induced temperature variations can significantly alter the distribution of thermal stresses, and that there could exist a strong coupling between TEI and thermal buckling under some conditions. Although the analyses were performed in the settings of clutch applications, the conclusions are applicable to brake discs as well because of the shared similarities. Adding the complexity in the brake disc geometry such as hat and vent sections is an ongoing research

Notes:

Vendor supplied data

Publisher Number:

2018-01-1894

Access Restriction:

Restricted for use by site license