Brake-Disc Holes and Slit Shape Design to Improve Heat Dissipation Performance and Structural Stability

Park, Soo‐Jin; Lee, Ki‐Bum; Kim, Sunwoo; Kim, Jinho

doi:10.3390/app12031171

Cited by 14 publications

(8 citation statements)

References 14 publications

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Section: Introductionmentioning

confidence: 99%

“…12 Furthermore, previous disc-related studies lacked experimental data obtained from benchmarking tests of the results derived from the analysis, making the analysis not sufficiently validated. 13,14 Therefore, in this study, the shape of a brake disc was optimized to improve the thermodynamic performance while securing the structural stability of the ventilated brake disc. The result was verified through bench experiments.…”

Section: Introductionmentioning

confidence: 99%

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Optimal design and verification through bench experiment to secure structural stability and improve thermodynamic performance of ventilated brake disc

Park

Sun

Jang

et al. 2023

Advances in Mechanical Engineering

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In this study, the thermodynamic performance of a ventilated brake disc was improved by securing structural stability and verified through bench experiments. A brake disc is a braking device that decelerates a vehicle or stops it, and the disc should maintain a reliable braking force. The temperature rise on the disc surface has the greatest effect on the braking force. In recent years, many studies have been conducted on the shape of the disc in order to secure stable braking force and heat dissipation at the same time. However, as the disc surface is processed further, it becomes more difficult to have stable braking force, although the heat dissipation property is improved. Therefore, in this study, disc shapes were designed to improve heat dissipation performance while maintaining structural performance. The stress and temperature distribution were analyzed using ANSYS and optimal design of disc shapes was performed through PIAnO. In addition, to compare and verify the initial model and the optimized model, a prototype was fabricated to judge the feasibility of the optimization using a dynamometer. It can be expected that the heat dissipation performance and driving safety can be improved by using new brake discs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal design and verification through bench experiment to secure structural stability and improve thermodynamic performance of ventilated brake disc

Park

Sun

Jang

et al. 2023

Advances in Mechanical Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Finite element analysis and optimization packages, Abaqus and OptiStruct, were used in their research. In another recent research, the shape and pattern of through-holes and slits on the friction surface of a brake rotor were optimized to minimize the maximum stress and temperature in the rotor model [25].…”

Section: Introductionmentioning

confidence: 99%

Structural Optimization of Vented Brake Rotors with a Fully Parameterized Model

et al. 2022

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Vented brake rotors used in an automobile behave similarly to centrifugal fans, drawing cool air from the inboard side, passing it through the disc vents, and exhausting it from the periphery. A vented brake rotor with a better heat dispersing ability is often superior to a solid rotor, in both thermal performance and brake efficiency. In this research, a fully parameterized model for a ventilated brake rotor is created using the ANSYS Parametric Design Language, to uniquely define the rotor’s geometry. With this parameterized model, two structural optimization cases are studied in this paper. The first one investigated is a modal frequency separation problem: The frequency differences in a tangential mode sandwiched between two nodal diameter modes of the brake rotor model are maximized. An automatic identification scheme for extracting correct mode orders is implemented in the program to track the correct modes during optimization. The second case is a thermal deformation problem: The distortion on the frictional surfaces of the rotor loaded with heat flux generated during the braking process is minimized. The optimization results show that a brake rotor design with a thinner outboard disc and a thicker inboard disc provides a great choice for rotor coning reduction.

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“…The FEM-based optimization has become popular in the shape optimization of holes to reduce the stress concentration with the help of numerical optimization techniques [16,17]. Park et al [18] carried out a FEM-based optimization for the shape and pattern of holes and slits of a brake disk, which minimizes the concentrated stress and simultaneously improves the cooling performance. Han et al [19] proposed an equilibrium multi-objective optimization model with self-regulated weighting factors for the optimum design of a non-circular clearance hole on the front flange of a turbine disk.…”

Section: Introductionmentioning

confidence: 99%

Stress Optimization of Vent Holes with Different Shapes Using Efficient Switching Delayed PSO Algorithm

et al. 2022

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An effective integrated design optimization method is developed to reduce the maximum von Mises stress around vent holes of a high-pressure turbine sealing disk. It mainly includes four different shape designs (circular, elliptical, race-track, and four-arc) for holes, an updated self-developed modelling and meshing tool, an APDL-based strength analysis, and a self-proposed efficient switching delayed particle swarm optimization (SDPSO) algorithm. The main idea of SDPSO is: (1) by evaluating an evolutionary factor and utilizing a probability transition matrix, a non-homogeneous Markov chain is determined and auto-updated in each generation; (2) the evolutionary factor and the Markov chain are used to adaptively select the inertia weight, acceleration coefficients, and delayed information to adjust the particle’s velocity. The performance of SDPSO is evaluated through two benchmark optimization problems with constraints. The results show that SDPSO is superior to two well-known PSO algorithms in optimization capability, numerical robustness, and convergence speed. Furthermore, SDPSO is used for the stress optimization of vent holes with four different shapes. The results show that: (1) SDPSO is suitable and valuable for practical engineering optimization problems with constraints; (2) the developed integrated design optimization method is effective and advanced for reducing the maximum von Mises stress around the vent holes; and (3) the four-arc hole has more tremendous advantages in reducing the maximum von Mises stress, followed by the elliptical hole, the race-track hole, and the circular hole.

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Brake-Disc Holes and Slit Shape Design to Improve Heat Dissipation Performance and Structural Stability

Cited by 14 publications

References 14 publications

Optimal design and verification through bench experiment to secure structural stability and improve thermodynamic performance of ventilated brake disc

Optimal design and verification through bench experiment to secure structural stability and improve thermodynamic performance of ventilated brake disc

Structural Optimization of Vented Brake Rotors with a Fully Parameterized Model

Stress Optimization of Vent Holes with Different Shapes Using Efficient Switching Delayed PSO Algorithm

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