Topological Optimization of Automobile Rotor Disk Brake

Matariya, Vipul; Patel, Hiren G.

doi:10.14445/23488360/ijme-v6i4p105

Cited by 5 publications

(2 citation statements)

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“…Topology optimization is effective method for the mechanical design for the engineering especially at the concept design stage [11]. In this section, topology optimization is implemented to the original numerical model in order to mass reduction as main objective.…”

Section: Topology Optimization Of the Jet Engine Bracketmentioning

confidence: 99%

Topology Design and Modal Analysis of a Bracket via FEA

Gülbahçe¹,

Sezgen²,

Çakan³

2019

Applied Engineering Letters

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In this study, topology optimization of a jet engine bracket which was proposed from GE Aviation challenge for improving the brackets is presented using finite element analysis (FEA). The minimum mass, maximum equivalent stress and first natural frequency are selected for the objective functions to topology optimization. Then, topology optimization procedure is implemented according to the identified boundary conditions and objective functions. Finally, the manufacturing model is obtained and compared with the original model according to the maximum equivalent stress, mass reduction and first natural frequency. Also, modal analysis and static analysis results of the proposed models are presented. ARTICLE HISTORY

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Section: Topology Optimization Of the Jet Engine Bracketmentioning

confidence: 99%

Topology Design and Modal Analysis of a Bracket via FEA

Gülbahçe¹,

Sezgen²,

Çakan³

2019

Applied Engineering Letters

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“…9 Furthermore, topological optimization research has been conducted using the results of thermal analysis of the brakes by setting the disc shape as a design variable. 10 These studies have enabled the prediction of characteristics from flow analysis and optimization models based on disc-internal features that were difficult to determine by experiments alone. This study also led to research into finding optimized pillar shapes inside the disc by applying optimization theory to the changes in thermal behavior according to the inside of the disc.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of the disc vents for high-speed railway vehicles using thermal-structural coupled analysis with genetic algorithm

Song

Kang

Kim

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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Braking devices are devices that convert kinetic energy into thermal energy using frictional force. A disc-type brake uses the frictional force to brake and can be used in a wide range of applications, such as automobiles, railway vehicles, and aircraft. However, heat dissipation of the disc has been considered a major problem. High temperatures during the braking process cause thermal stress and deformation problems of the disc because the physical properties of metal composing the disc change drastically with temperature. In this study, vents were applied on the disc surface to increase their heat dissipation performance. In general, vents are structurally susceptible to stress and deformation. However, heat dissipation is essential because the disc surface rises to high temperatures. Therefore, a thermal-structural coupled analysis was performed using the computational fluid dynamics and finite element method methods. Five different rotational speeds and surface temperatures of the disc were considered. Design of experiments was used to determine an optimized design utilizing the data from the coupled analysis, and Latin hypercube sampling was used to generate samples from a set of N regions. And the genetic algorithm was used to conduct a sensitivity analysis of the design parameters. The optimized design was determined for harsh conditions. The diameters of vents were selected 6.87 mm, 6.12 mm, and 5.99 mm in a radial direction through the optimization. Thermal stress and deformation acting on the disc were reduced in the optimally designed disc. The optimized disc model experiences a 7.01% decrease in maximum equivalent stress when compared to the original disc. The model also decreased by 7.63% in maximum equivalent elastic strain. So, through enhanced convection-induced heat dissipation, the vents can be considered as a new way to prevent problems with the thermal stress and deformation that were apparent at high temperatures.

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