Fatigue Life Calculation of High-Power Disc Brake under Thermal-Mechanical Coupling

Zhang, Shengfang; Han, Zhiyu; Hao, Qiang; Liu, Yu; Sha, Zhihua; Ma, Fujian; Yang, Dapeng

doi:10.1088/1757-899x/692/1/012022

Cited by 8 publications

(5 citation statements)

References 1 publication

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Section: Resultsmentioning

confidence: 99%

“…27 This result also indicates that the rotation track of the frictional heat source should receive more attention than other parts since the high-temperature gradients are a potential cause of thermal cracking and wear. 29 Based on Figure 13(a)-(d), as the simulation time increased, the temperature of the traveler rose. Also, the high-temperature region was concentrated at the foot portion of the traveler, which was in direct contact with the ring and received the fixed frictional heat flux.…”

Section: Model Validationmentioning

confidence: 99%

“…27,28 The uneven temperature field generated by the high-speed friction of brake discs and pads will result in thermoelastic weakening and affect the braking characteristics. 29,30 The thermo-mechanical coupling, the sequential coupling, and the rotating heat source models have been developed, respectively, to examine the heat transfer of the breaking. 31 The results show that the rotating heat source model combines the advantages of the other two methods and has a good simulation result.…”

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confidence: 99%

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Numerical analysis of heat transfer in ring spinning

Hurren

et al. 2022

Textile Research Journal

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Improving ring spinning efficiency and yarn quality is still challenging due to the sliding friction heat generated by the ring/traveler system, which limits the traveler speed and the yarn production rate. In this study, a finite element model based on the external heat source method was first used to explore the heat transfer process of the ring/traveler system. The reliability of the model was verified empirically. Subsequently, the validated model was used to analyze the effect of the model parameters on the temperature of the ring/traveler system. The results confirm that the high-temperature region of the ring and the traveler was concentrated on their contact area. More specifically the maximum temperature of the traveler was 159.2°C, which was almost three times the maximum temperature of the ring (62.6°C). In addition, smaller frictional coefficient and yarn tension, larger contact area and heat absorption rate, and better thermal conductivity can reduce the high local temperature of the ring/traveler system. Among them, yarn tension, friction coefficient, and heat absorption rate have a significant influence on the system temperature, especially for the small traveler. The developed model is also available for different fiber types and yarn counts which can be used for a comprehensive investigation of the heat transfer in ring spinning processes. The model and results of this study offer a theoretical basis for further optimizing the ring/traveler system and improving the productivity of ring spinning.

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Section: Resultsmentioning

confidence: 99%

Section: Model Validationmentioning

confidence: 99%

mentioning

confidence: 99%

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Numerical analysis of heat transfer in ring spinning

Hurren

et al. 2022

Textile Research Journal

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“…Regarding the fatigue studies conducted for automotive brakes, Zhang’s paper [ 11 ] uses a combination of ABAQUS, Fe-safe, and nCode software to obtain the location, life, and crack length of fatigue crack initiation on the brake subjected to thermomechanical stress and, thus, obtains a fatigue life prediction method of the brake disc. Choi and Lee [ 12 ] found that the circumferential stress produced during rotation led to the failure of the solid automobile brake disc.…”

Section: Introductionmentioning

confidence: 99%

A Thermo-Mechanical Stress Based Fatigue Life Evaluation of a Mine Hoist Drum Brake System Using COMSOL Multiphysics

et al. 2022

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In this study, the fatigue usage factors for Findley and Matake stress-based criteria were determined in the case of an MK5×2 mine hoist drum brake system subjected to cyclic maneuver braking. The study was conducted for this type of brake system, because the majority of mine hoists in Romanian mines are equipped with this brake type, being in operation for several decades. A geometric model of the brake was built using SolidWorks and imported in COMSOL Multiphysics to perform thermo-mechanical simulations. Based on the deformations and von Mises stresses determined by the thermomechanical simulation and, considering the calculated endurance limits of the brake system materials, Matake and Findley fatigue life evaluation simulations from COMSOL’s fatigue module were conducted. The results show that the highest fatigue is expected on the drum lining surface towards the exit point from under the brake shoe in both cases, and the values of the usage factor of 0.307 (Findley) and 0.401 (Matake) are both under the critical value 1, meaning that the stress limit has not been exceeded for the brake system components and, thus, failure is not expected. Simulations were conducted considering an estimated 1.06 × 105 cycles during one year, more than both the usual service/replacement interval of the friction components of the brake, and the period of mandatory technical inspections imposed by regulations.

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“…The finite element model as a powerful simulation tool was widely used to analyze temperature distributions for high-speed rotating friction systems. 4,19,20 In this study, the heat transfer model of the traveler and the ring was developed to reveal its temperature field through the external heat source method. 17 The ring temperature under four variables (traveler weight, yarn count, twist level and spindle speed) was obtained experimentally and simulated based on the experimental plan generated by the response surface methodology 21,22 to verify the correctness of the heat transfer model.…”

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confidence: 99%

Modeling the temperatures of traveler and ring in ring spinning

Hurren

et al. 2023

Textile Research Journal

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Ring spinning is the dominant system of manufacturing high-quality yarns in the textile industry. Spinning parameters affect the spinning tension distribution and consequently the temperatures of the ring/traveler system. Excessive traveler heat will limit the spindle speed and the efficiency of yarn production. This study modeled the effect of the traveler weight, yarn count, twist level and spindle speed on the temperatures of the traveler and ring during ring spinning. The finite element method was used to model the temperatures of the ring and the traveler for different spinning parameters. The experimental ring temperature and maximum traveler temperature from the validated model were recorded based on the experimental design. The results show that spindle speed, traveler weight and yarn count had a statistically significant effect on the temperatures of the traveler and the ring, with the spindle speed having the strongest effect. The twist level of yarn, within the range examined, had no statistically significant influence on the traveler and ring temperatures. For a given spindle speed, the traveler weight and yarn count have a significant effect on the maximum temperature of the traveler, and the temperature change is more pronounced at a higher spindle speed.

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Fatigue Life Calculation of High-Power Disc Brake under Thermal-Mechanical Coupling

Cited by 8 publications

References 1 publication

Numerical analysis of heat transfer in ring spinning

Numerical analysis of heat transfer in ring spinning

A Thermo-Mechanical Stress Based Fatigue Life Evaluation of a Mine Hoist Drum Brake System Using COMSOL Multiphysics

Modeling the temperatures of traveler and ring in ring spinning

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