Effects of Young's Modulus on Disc Brake Squeal using Finite Element Analysis

Belhocine, Ali; Ghazaly, Nouby M.

doi:10.20855/ijav.2016.21.3423

Cited by 33 publications

(20 citation statements)

References 24 publications

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“…Tetrahedron Element type was selected for thermal analysis and it is a higher order four-node thermal element. Four-node elements have excellent compatible temperature shapes and are well suited to model curved boundaries and these elements are used for meshing grooved and un-grooved portion of disc brake shown in Figure 8 , Transient thermal boundary conditions are introduced into thermal module of ANSYS 15.0, by choosing the first mode of simulation by defining material models and physical properties of materials [ 26 , 27 ]. The transient thermal simulation was carried out using simulation conditions tabulated in Table 8 .…”

Section: Resultsmentioning

confidence: 99%

Design, Development and FE Thermal Analysis of a Radially Grooved Brake Disc Developed through Direct Metal Laser Sintering

Ahmed

Algarni

2018

Materials

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The present research work analyzed the effect of design modification with radial grooves on disc brake performance and its thermal behavior by using additive manufacturing based 3D printed material maraging steel. Temperature distribution across the disc surface was estimated with different boundary conditions such as rotor speed, braking pressure, and braking time. Design modification and number of radial grooves were decided based on existing dimensions. Radial grooves were incorporated on disc surface through Direct Metal Laser Sintering (DMLS) process to increase surface area for maximum heat dissipation and reduce the stresses induced during braking process. The radial grooves act as a cooling channels which provides an effective means of cooling the disc surface which is under severe condition of sudden fall and rise of temperatures during running conditions. ANSYS software is used for transient structural and thermal analysis to investigate the variations in temperatures profile across the disc with induced heat flux. FE based thermo-structural analysis was done to determine thermal strains induced in disc due to sudden temperature fluctuations. The maximum temperature and Von Mises stress in disc brake without grooves on disc surface were observed which can severely affect thermal fatigue and rupture brake disc surface. It was been observed by incorporating the radial grooves that the disc brake surface is thermally stable. Experimental results are in good agreement with FE thermal analysis. DMLS provides easy fabrication of disc brake with radial grooves and enhancement of disc brake performance at higher speeds and temperatures. Therefore, DMLS provides an effective means of implementing product development technology.

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Section: Resultsmentioning

confidence: 99%

Design, Development and FE Thermal Analysis of a Radially Grooved Brake Disc Developed through Direct Metal Laser Sintering

Ahmed

Algarni

2018

Materials

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“…However, the latter is very much to evaluate; because of the complexity of friction phenomenon in the braking phase of automobiles. Belhocine and Nouby [10] developed a finite element model of the whole disc brake assembly and validated by using experimental modal analysis. Ishak et al [11] developed one dimensional (1D) model of leading-trailing drum-type parking brake model and then verified with experiments test bench.…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Model for the Analysis of Disc Brake Using the Finite Element Method in Frictional Contact

Belhocine

Abdullah

2020

Multiscale Sci. Eng.

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The braking phenomenon is an aspect of vehicle stopping performance where with kinetic energy due to speed of the vehicle is transformed to thermal energy via the friction between the brake disc and its pads. In our work, we presented numerical modeling using ANSYS software adapted in the finite element method, to follow the evolution of the global temperatures for the two types of brake discs, full and ventilated disc during braking scenario. Also, numerical simulation of the transient thermal and the static structural analysis were performed sequentially, with coupled thermo-structural method. Numerical procedure of calculation relies on important steps such that the Computational Fluid Dynamics and thermal analysis have been well illustrated in 3D, showing the effects of heat distribution over the brake disc. This CFD approach helped in the calculation of values of the heat transfer coefficients (h) that have been exploited in 3D transient evolution of the brake disc temperatures. Three different brake disc materials were tested and comparative analysis of the results was conducted in order, to derive the one with the best thermal behavior. Finally, the resolution of the coupled thermomechanical model allows us to visualize other important results of this research such as; the deformations, and the equivalent Von Mises stress of the disc, as well as the contact pressure of brake pads. Following the analysis of the results obtained, we draw several conclusions from this investigation. The choice allowed us to deliver the excellent rotor design to ensure and guarantee the good braking performance of the vehicles.

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“…Ishak et al (2018) developed one dimensional (1D) model of leading-trailing drum-type parking brake model and then verified with experiments test bench. Belhocine and Ghazaly (2016) developed FE model of the whole disc brake assembly and validated by using experimental modal analysis. Atkins et al (2019) presented a particle image velocimetry flow measurement of air flow in the ventilation channels, thus cooling the disc down during braking operations.…”

Section: Introductionmentioning

confidence: 99%

Modeling and simulation of frictional disc/pad interface considering the effects of thermo-mechanical coupling

Belhocine

Abdullah

2020

WJE

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Purpose This study aims to investigate numerically a thermomechanical behavior of disc brake using ANSYS 11.0 which applies the finite element method (FEM) to solve the transient thermal analysis and the static structural sequentially with the coupled method. Computational fluid dynamics analysis will help the authors in the calculation of the values of the heat transfer (h) that will be exploited in the transient evolution of the brake disc temperatures. Finally, the model resolution allows the authors to visualize other important results of this research such as the deformations and the Von Mises stress on the disc, as well as the contact pressure of the brake pads. Design/methodology/approach A transient finite element analysis (FEA) model was developed to calculate the temperature distribution of the brake rotor with respect to time. A steady-state CFD model was created to obtain convective heat transfer coefficients (HTC) that were used in the FE model. Because HTCs are dependent on temperature, it was necessary to couple the CFD and FEA solutions. A comparison was made between the temperature of full and ventilated brake disc showing the importance of cooling mode in the design of automobile discs. Findings These results are quite in good agreement with those found in reality in the brake discs in service and those that may be encountered before in literature research investigations of which these will be very useful for engineers and in the design field in the vehicle brake system industry. These are then compared to experimental results obtained from literatures that measured ventilated discs surface temperatures to validate the accuracy of the results from this simulation model. Originality/value The novelty of the work is the application of the FEM to solve the thermomechanical problem in which the results of this analysis are in accordance with the realized and in the current life of the braking phenomenon and in the brake discs in service thus with the thermal gradients and the phenomena of damage observed on used discs brake.

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Effects of Young's Modulus on Disc Brake Squeal using Finite Element Analysis

Cited by 33 publications

References 24 publications

Design, Development and FE Thermal Analysis of a Radially Grooved Brake Disc Developed through Direct Metal Laser Sintering

Design, Development and FE Thermal Analysis of a Radially Grooved Brake Disc Developed through Direct Metal Laser Sintering

Thermomechanical Model for the Analysis of Disc Brake Using the Finite Element Method in Frictional Contact

Modeling and simulation of frictional disc/pad interface considering the effects of thermo-mechanical coupling

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