Theoretical and experimental investigation of non-asbestos friction lining material applied in automotive drum brake

Abstract

Automotive brakes are the important machine element which provides an artificial frictional resistance to control the speed of an automobile. In the present work, theoretical models for the coefficient of friction between brake drum and friction liner are generated and simulated using MATLAB Simulink. A test set up designed and manufactured according to the brake lining quality test procedure (SAE J661) is used to investigate tribological properties of a non-asbestos friction lining material having 11 different constituents, which is manufactured from one of the brake liner manufacturer. An experiment is designed using response surface methodology (RSM) with vehicle speed, braking force, and sliding distance as the input parameters, whereas coefficient of friction and wear as an output. It is found that vehicle speed is the most significant parameter among the three. Fade and recovery behavior of the friction lining material is also studied and it is found that the developed friction lining material satisfies the criteria specified in SAE J661. Scanning electron microscope (SEM) and energy dispersive spectoscopy (EDS) have revealed the significant surface phenomenon.

Wear analysis of eco-friendly non-asbestos friction-lining material applied in an automotive drum brake: Experimental and finite-element analysis

“…However, the properties of FLM were taken from the literature. 26,[35][36][37] To replicate the exact braking operation of the drum brake, the constraints and loading conditions reported in Figure 4 were used in FEA. The brake drum was subjected to rotational velocity obtained from automobiles' speed.…”

“…Kchaou et al 25 presented a comprehensive literature review on different testing and characterization methodologies for these materials. Shinde et al 26 reported a theoretical and experimental investigation of the FLMs under actual operating conditions. Manoharan et al 19 carried out an experimental study on the FLMs using a standard quality test procedure, SAE J661, exhaustively called a chase friction test.…”