Investigation of the Rational Area of Friction Surfaces in Contact of
Friction Linings for Disc Brakes of Passenger Cars 2021-01-1295
It is important for assessing the service life of the braking mechanisms of
passenger cars that are in operation is the establishment of the speed and the
value of the permissible wear of the friction surfaces, which ensures the
durability of the brake.
The purpose of the study is to assess effect of area friction surfaces on
resource of vehicle braking mechanisms. This will extend the service life of the
disc brakes on cars.
In the work, the regularities of wear of mating parts of disc brakes were
established depending on the change in the geometric parameters of the friction
surfaces and operating modes during their operation.
It was found that the service life of disc brakes can be increased by 1.16 times
with an increase in the area of frictional contact by 15 %, for passenger cars
DAEWOO LANOS and LADA PRIORA.
A comparative assessment of the wear of the new DAEWOO LANOS and LADA PRIORA
brake pads, which perform cyclic emergency braking, is provided.
Recommendations have been formulated that will increase the resource of disc
brakes. It is recommended to increase the disc-pad friction contact area by
using curved surfaces. This will increase the width of the friction surface,
which is limited by the inner and outer radii of the disc, without increasing
the thickness of the friction bodies.
Citation: Nazarov, A., Krivoshapov, S., Misyura, N., Belov, V. et al., "Investigation of the Rational Area of Friction Surfaces in Contact of Friction Linings for Disc Brakes of Passenger Cars," SAE Technical Paper 2021-01-1295, 2021, https://doi.org/10.4271/2021-01-1295. Download Citation
Author(s):
Aleksandr Nazarov, Sergey Krivoshapov, Nikolay Misyura, Valentin Belov, Vladimir Zuiev, Ivan Nazarov, Nikolay Sergienko
Affiliated:
Kharkiv National Automobile and Highway University, National Technical University "KhPI"
