Wszystkie pola: heating temperature - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The temperature of a brake disc during frictional heating with linear distribution of the contact pressure
Autorzy:: Topczewska, K.
Powiązania:: https://bibliotekanauki.pl/articles/134821.pdf
Data publikacji:: 2016
Wydawca:: ADVSEO
Tematy:: contact pressure
frictional heating
heat conduction equation
temperature
friction
brake disc
Opis:: In this paper the analytical solution of the boundary–value heat conduction problem for a brake rotor was developed. A solid brake disc is heated by frictional heat flux during braking with constant deceleration. Intensity of the heat flux affecting friction surface of the disc is proportional to the specific power of friction. It was assumed that contact pressure between the pad and the disc increases linearly, from zero in the initial moment of the braking process to the maximum value in standstill. Calculations were carried out on variables and parameters in the dimensionless form. The obtained results were compared with adequate resultsduring braking with constant deceleration, with an assumption of pressure constant in time.
Źródło:: Technical Issues; 2016, 3; 113-119
2392-3954
Pojawia się w:: Technical Issues
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Temperature distribution in a brake disc with variable contact pressure
Autorzy:: Topczewska, K.
Powiązania:: https://bibliotekanauki.pl/articles/134744.pdf
Data publikacji:: 2016
Wydawca:: ADVSEO
Tematy:: braking
frictional heating
temperature
brake disc
Opis:: The aim of this study was to investigate the influence of the time of pressure increase during single braking on the temperature in a brake disc. The case of linear pressure increase from zero to nominal value in the initial stage of braking and maintaining this value to standstill was considered. The time distribution of the sliding velocity of frictional elements was determined from the differential equation of motion with the initial condition. Based on the time distributions of pressure and sliding velocity, the intensity of the frictional heat flux, which affects on the disc surface, was determined. Spatio-temporal distribution of the temperature in a brake disc was found from analytical solution of the heat conduction boundary–value problem for semi–space heated on the outer surface heat flux with known a priori intensity. The numerical analysis conducted allowed to determine engineering equation, which describes relation between maximum temperature and the time of pressure increase.
Źródło:: Technical Issues; 2016, 1; 90-95
2392-3954
Pojawia się w:: Technical Issues
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Frictional heating with time-dependent specific power of friction
Autorzy:: Topczewska, K.
Powiązania:: https://bibliotekanauki.pl/articles/386356.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: brake disc
frictional heating
temperature
time-dependent power of friction
Opis:: In this paper analytical solutions of the thermal problems of friction were received. The appropriate boundary-value problems of heat conduction were formulated and solved for a homogeneous semi–space (a brake disc) heated on its free surface by frictional heat fluxes with different and time-dependent intensities. Solutions were obtained in dimensionless form using Duhamel's theorem. Based on received solutions, evolution and spatial distribution of the dimensionless temperature were analyzed using numerical methods. The numerical results allowed to determine influence of the time distribution of friction power on the spatio-temporal temperature distribution in brake disc.
Źródło:: Acta Mechanica et Automatica; 2017, 11, 2; 111-115
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Thermal stresses due to frictional heating with time-dependent specific power of friction
Autorzy:: Topczewska, K.
Powiązania:: https://bibliotekanauki.pl/articles/386412.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: frictional heating
temperature
thermal stresses
time-dependent power of friction
Opis:: In this paper influence of temporal profile of the specific friction power (i.e. the product of the coefficient of friction, sliding velocity and contact pressure) on thermal stresses in a friction element during braking was investigated. Spatio-temporal distributions of thermal stresses were analytically determined for a subsurface layer of the friction element, based on the model of thermal bending of a thick plate with unfixed edges (Timoshenko and Goodier, 1970). To conduct calculations, the fields of dimensionless temperature were used. These fields were received in the article (Topczewska, 2017) as solutions to a one-dimensional boundary-value problem of heat conduction for a semi-space heated on its outer surface by fictional heat flux with three, different time profiles of the friction power.
Źródło:: Acta Mechanica et Automatica; 2017, 11, 4; 280-284
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Analytical model for investigation of the effect of friction power on thermal stresses in friction elements of brakes
Autorzy:: Topczewska, K.
Powiązania:: https://bibliotekanauki.pl/articles/281308.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: frictional heating
temperature
specific power of friction
braking
thermal stresses
Opis:: The influence of the change with time of friction power on thermal stresses in a friction element of a brake system is investigated. For this purpose, a list of ten different temporal profiles of specific friction power is used, which has been experimentally established for a single braking process. The corresponding profiles of transient temperature fields in the considered element are applied as input parameters to find quasi-static thermal stresses. Numerical analysis concerned with spatio-temporal distributions of the stresses and their evolutions on the heated surface is presented.
Źródło:: Journal of Theoretical and Applied Mechanics; 2018, 56, 4; 1017-1027
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja