Inverse determination of sliding surface temperature based on measurements by thermocouples with account of their thermal inertia

Tribological Behavior of Friction Materials of a Disk-Brake Pad Braking System Affected by Structural Changes—A Review

“…More recently, Nosko et al [ 8 ], to determine the temperature at a sliding surface, have developed an inverse heat conduction algorithm taking account of thermocouple thermal inertia [ 24 ]. This algorithm was applied in the case of brake material friction on steel.…”

“…Various issues, such as the system components’ reliability, noise and vibration, the disk-pad braking materials couple, the heat transfer and heat flux must be known for the proper operation of the braking system. Knowledge of the temperature and heat flux at the interface between braking materials couple and at their boundary with the environment is of critical importance to safety engineering (here road safety), mechanical engineering and in many other engineering fields [ 6 , 7 , 8 ].…”

“…Talati and Jalalifar [ 9 ] studied heat transfer in the braking system and identified the governing equations in time and space for the transition heat transfer of the brake disk and pad. Nosko et al [ 8 ], to determine the temperature at a sliding surface, developed an inverse heat conduction algorithm in the case of friction of brake material on steel. Ganji and Ganji [ 10 ] analyzed the brake squeaking phenomenon from the point of view of amplitude and frequency of the oscillations in a limited cycle, considering nonlinear equations of motion due to large distortions [ 9 ] using the Stribeck friction model.…”

Analytical Model of the Frictional Heating in a Railway Brake Disc at Single Braking with Experimental Verification

“…On the other hand, the temperature measured during the dynamometer tests remain close to the initial value in the first few seconds of both braking applications. This is related to the phenomenon of the thermal inertia of the measurement thermocouples, which is described in more detail in the study [ 1 ].…”

“…The condition of the friction elements after testing is also examined, i.e., whether signs of thermal damage are observed. The temperature of the friction elements during the dynamometer test is measured using thermocouples located under the friction surface inside the elements [ 1 ]. Other than the conventional thermocouples, the so-called sliding thermocouples, which are placed directly on the friction surface, can also be found [ 2 ].…”