Frictionally excited thermoelastic instability in disc brakes—Transient problem in the full contact regime

Voldřich, Josef

doi:10.1016/j.ijmecsci.2006.08.008

Cited by 32 publications

(12 citation statements)

References 16 publications

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“…Therefore, the temperature field calculated by STP is inconsistent with the actual temperature field. The methods solving the heat-conduction equation include the method of separation of variables (Golebiowski & Kwieckowski, 2002;Lukyanov, 2001), Laplace transformation method (Matysiak et al, 2002;Yevtushenko & Ivanyk, 1997), Green's function method (Naji & Al-Nimr, 2001), integral-transform method , finite element method (Voldrich, 2007;Qi & Day, 2007;Thuresson, 2006;Choi & Lee, 2004) and finite difference method [Chang & Li, 2008;Liu et al, 2009], etc. The former three methods are analytic solution methods and it is difficult to solve the heatconduction problem with the dynamic theromophysical property (DTP) and complicate boundary conditions.…”

Section: Fig 1 Schematic Of Mine Friction Hoistmentioning

confidence: 99%

Heat Conduction for Helical and Periodical Contact in a Mine Hoist

Peng¹,

Zhu²,

Chen³

2011

Heat Transfer - Engineering Applications

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Section: Fig 1 Schematic Of Mine Friction Hoistmentioning

confidence: 99%

Heat Conduction for Helical and Periodical Contact in a Mine Hoist

Peng¹,

Zhu²,

Chen³

2011

Heat Transfer - Engineering Applications

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“…In addition, another type of thermoelastic instability takes place in a rotating thick disk due to a positive growth rate of disk temperature induced by friction heat as investigated in Afferrante et al [19], Voldrich [20] and Honner et al [21], but it is not the case considered in this paper. Krempaszky and Lippmann [22] and Davis et al [23] indicated that the thermal membrane pre-stress/load can also cause the so-called thermoelastic instability in a clutch.…”

Section: Introductionmentioning

confidence: 96%

“…and the initial stress-free transversal runout w can be assumed to be et al[29].With Galerkin's method, substituting Eqs (20). and(21)into Eq.…”

mentioning

confidence: 99%

A thermal boundary control method for a flexible thin disk rotating over critical and supercritical speeds

Pei

Chatwin

et al. 2016

Meccanica

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In practice a rotating flexible thin annular disk has to be operated at low speed, because three types of dynamic instabilities inevitably occur around critical and supercritical speeds, namely: aeroelastic, parametric and thermoelastic. The rotating disk is clamped and driven by a drive shaft attached to the disk inner edge. The external action of the flowing surrounding air causes the aeroelastic instability; a slider mass-damper-spring-friction moving load causes parametric instability; and disk/slider interface friction heat can cause thermoelastic instability. A thermal boundary control method is used to induce disk thermal membrane stresses utilizing drive shaft temperature increments to stabilize these dynamic instabilities. Fundamental investigations are made of disk temperature distribution, thermal stress, natural frequency, dynamic stability and steady state amplitude to validate and demonstrate the viability of the new control method. The thermal boundary control method offers valuable opportunities for rotating disk applications operating over critical and supercritical high speeds with high efficiency.

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“…Zhu et al established the theoretical model of a three-dimensional (3D) transient temperature field to predict the modification of brake shoe's temperature field throughout hoist's emergency braking [14]. Voldˇrich postulated that the extraordinary of the essential slippery speed in brake discs causes formation of hot spots, non-uniform contact pressure distribution, vibration, and permanent harm of the disc [15]. Zagrodzki analyzed slippery systems with resistance heating, that exhibit thermoelastic instability (TEI) in friction clutches and brakes once the slippery speed exceeds a essential price [13].…”

Section: Introductionmentioning

confidence: 99%

Structural and Thermal Analysis of Disc Brake With Drilled Holes Of Various Materials

Allamraju¹,

Ravikumar²

2019

IJITEE

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The design of braking system of a vehicles is very important in order to minimize the accidents and increase the life span of vehicle, with this motto, in this paper presented the structural analysis, fatigue analysis and thermal analysis of disc brake with drilled holes(DBDH) was done by considering various materials of DBDH such as carbon alloy, steel and carbon steel. The comparison of those materials is studied in various mechanical and thermal properties such as deformation, strain, stress, factor of safety, number cycles under cyclic loading and heat flux. Simulation studies were done in Ansys 14.5 version. It is observed that the heat flow rate is high in carbon alloy and low in carbon steel material of DBDH model. Maximum stress is observed in steel in structural analysis.

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Frictionally excited thermoelastic instability in disc brakes—Transient problem in the full contact regime

Cited by 32 publications

References 16 publications

Heat Conduction for Helical and Periodical Contact in a Mine Hoist

Heat Conduction for Helical and Periodical Contact in a Mine Hoist

A thermal boundary control method for a flexible thin disk rotating over critical and supercritical speeds

Structural and Thermal Analysis of Disc Brake With Drilled Holes Of Various Materials

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