A Method to Predict the Heat Generation in a Rubber Spring Used in the Railway Industry

Luo, Robert Keqi; Wu, W X; Mortel, WJ

doi:10.1243/095440905x8862

Cited by 12 publications

(8 citation statements)

References 1 publication

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“…Heat generated from the cyclic deformation of rubbers at sufficient magnitudes of amplitude and frequency cannot be easily conducted away; this results in an increasing temperature for the rubber components. High temperatures accelerate the fatigue of rubbers, so it is very important to find proper ways to reduce the heat buildup of rubbers in dynamic applications 1, 2. Heat generation mainly originates from the viscoelasticity of rubbers, and it increases with increases in hysteresis loss, frequency, stroke, and ambient temperature 3, 4.…”

Section: Introductionmentioning

confidence: 99%

Natural rubber with low heat generation achieved by the inclusion of boron carbide

Huang

Zhang

et al. 2010

J of Applied Polymer Sci

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Natural rubber with low heat generation was prepared by the inclusion of boron carbide (B 4 C). Tensile testing, scanning electron microscopy (SEM), dynamic mechanical analysis, and thermal constant analysis were performed. The results show that a slight deterioration of tensile strength only occurred at a high volume content (>20 vol %). The thermal conductivity increased for the formation of well-maintained B 4 C thermal conductive pathways. SEM images and theoretical analysis demonstrated that the specific area of B 4 C was small and the interfacial activity was low. Infrared thermal images taken by the infrared camera proved the low heat generation of the composites, which originated from the high thermal conductivity and the weak interface.

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Section: Introductionmentioning

confidence: 99%

Natural rubber with low heat generation achieved by the inclusion of boron carbide

Huang

Zhang

et al. 2010

J of Applied Polymer Sci

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“…1. The proposed procedure is similar to the procedure given in [6], but instead of experimental determination of static hysteresis, it is determined by computer simulation (FEM). The determination of static hysteresis (I) is enabled by the application of a visco-plastic rubber constitutive model.…”

Section: Definition Of Heat Generation Prediction Proceduresmentioning

confidence: 99%

Prediction of heat generation in rubber or rubber-metal springs

et al. 2012

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The temperature of rubber or rubber-metal springs increases under cyclic loading, due to hysteresis losses and low rubber thermal conductivity. Hysteresis losses correspond to energy dissipation from the rubber, which is primarily converted into heat. This well-known phenomenon, called heat build-up, is the primary reason for rubber aging. Increase in temperature within the rubber compound leads to degradation of its physical and chemical properties, increase in stiffness and loss of damping capability. This paper presents a novel procedure of heat generation prediction in rubber or rubber-metal springs. The procedure encompasses the prediction of hysteresis loss, i. e. dissipated energy within the rubber, by finite element analysis and application of a modern visco-plastic rubber constitutive model. The obtained dissipated energy was used as an input for transient thermal analysis. Verification of the proposed procedure was performed by comparison of simulation results with experimentally obtained data during the dynamic loading of the rubber specimen. The proposed procedure is highly computationally efficient and it enables time integration, which can be problematic in coupled mechanical thermal analysis. [Projekat Ministarstva nauke Republike Srbije, br. TR35005: Research and Development of New Generation of Wind Turbines of High Energy Efficiency

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“…With the advent of rubber viscoelastic/viscoplastic constitutive models, it was possible to overcome the limitations of hyperelastic models and new fields of application of the finite element method in the development of rubber-metal springs have been opened. The implementation of these models in software packages has enabled engineers to evaluate dynamic stiffness [ 10 ], spring hysteresis [ 11 , 12 , 13 ], internal heat generation [ 14 , 15 , 16 , 17 ], and related elastomer aging [ 14 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Procedure for the Selection of Rubber Compound in Rubber-Metal Springs for Vibration Isolation

et al. 2020

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The selection of a rubber compound has a determining influence on the final characteristics of rubber-metal springs. Therefore, the correct selection of a rubber compound is a key factor for development of rubber-metal vibration isolation springs with required characteristics. The procedure for the selection of the rubber compound for vibration isolation of rubber-metal springs has been proposed, so that the rubber-metal elements have the necessary characteristics, especially in terms of deflection. The procedure is based on numerical simulation of spring deflection with Bergström-Boyce constitutive model in virtual experiment, with a goal to determine which parameters of the constitutive model will lead to spring required deflection. The procedure was verified by case study defined to select rubber compound for a rubber–metal spring used in railway engineering.

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A Method to Predict the Heat Generation in a Rubber Spring Used in the Railway Industry

Cited by 12 publications

References 1 publication

Natural rubber with low heat generation achieved by the inclusion of boron carbide

Natural rubber with low heat generation achieved by the inclusion of boron carbide

Prediction of heat generation in rubber or rubber-metal springs

Procedure for the Selection of Rubber Compound in Rubber-Metal Springs for Vibration Isolation

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