A comparison of rubber stress relaxation models for conveyor belt indentation rolling resistance calculations

Munzenberger, Paul J.; O'Shea, Jayne; Wheeler, Craig

doi:10.1007/s10999-018-9412-y

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…Based on short‐term creep tests in sealing applications, it was found that a logarithmic function based on linear viscoelastic materials was well fitted . Munzenberger et al obtained stress relaxation modulus from dynamic analysis by taking a nonlinear strain dependency of the viscoelastic properties into consideration and found that the Generalized Maxwell model could give results close to experimental data. The viscoelastic approach has also used in rubber‐blended building materials for creep evaluation with different constant temperatures .…”

Section: Introductionmentioning

confidence: 98%

A general hyperelastic‐time model for numerical prediction on rubber relaxation and experimental validation under different environments

Luo

2019

Polymer Engineering & Sci

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All the methods developed for rubber creep and relaxation are validated to specific environments for now. In general, for each new loading case and new component, a data fitting procedure has to be performed to obtain different suitable parameters. This limitation has restricted developments of the theories and their applications. This article investigates a possibility to predict the time-dependent response from data of known conditions using the time-dependent hyperelastic approach. A number of hypotheses are proposed for considered conditions, i.e., loading, material hardness, and different components, and are validated with experimental data using a dumbbell specimen and a typical industrial anti-vibration product. It has been proved that the concept of effective strain is a good criterion to bridge two different rubber components for time-dependent predictions. Hence, the application restriction of the hyperelastic-time model is successfully lifted. For the first time, it is possible to predict, not to simulate only, rubber creep/relaxation based on known parameters. By combination with previous work on temperature effect, a general hyperelastic-time model with multiple capabilities can be established and used to predict time-dependent response of rubber components. It is desirable to apply this approach on more engineering cases for further verification. POLYM. ENG.

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Section: Introductionmentioning

confidence: 98%

A general hyperelastic‐time model for numerical prediction on rubber relaxation and experimental validation under different environments

Luo

2019

Polymer Engineering & Sci

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“…These studies have mainly focused on the resistance of a belt while running. The resistance between the belt and the rollers accounts for approximately 60% of the total resistance during belt operation [ 5 , 7 , 14 , 15 ]. The elastic modulus of the bottom cover of the belt is also an important factor for running resistance.…”

Section: Introductionmentioning

confidence: 99%

“…As the driving force produced by the traditional single-roller belt conveyor cannot satisfy the requirement for long-distance driving, scholars have proposed the multi-roller driving method [5][6][7]. However, this method tends to cause uneven power allocation among the rollers [8,9], which results in either overloaded or underloaded individual electric motors, thereby increasing production costs and wasting resources [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of the elastic modulus of a conveyor belt on the power allocation of multi-drive conveyors

Yao

Bi-sheng

2020

PLoS ONE

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The implementation of multiple drives for belt conveyors can solve the problems associated with motor overpower and the excessive tension of conveyor belts powered by a single drive. However, multiple drives can suffer from uneven driving power allocation. Among various factors, the selection of the type of conveyor belt particularly affects the power allocation. The current study aims to investigate the influence of the elastic modulus of a conveyor belt on the power allocation of multi-drive conveyors. Based on the Kelvin-Voigt viscoelastic model, a discrete model of an entire machine is established. Kelvin-Voigt software is used to simulate the working conditions of conveyor belts with different elastic moduli under full loads. The driving forces of individual rollers are obtained and then compared. Compared to other types of belts, a steel wire core conveyor belt, whose elastic modulus is relatively high, effectively improves the stability of the conveyor belt under a full load after start-up to achieve a reasonable power allocation. The results of this study provide a foundation for conveyor belt selection for multi-drive conveyors.

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“…The quality and force of the conveyor belt, including the mass of the bulk material, the running resistance of the rollers, etc. [12,13], are concentrated at a node. The dynamic equations of the entire system are linear differential equations.…”

Section: Introductionmentioning

confidence: 99%

Multi Body Dynamic Equations of Belt Conveyor and the Reasonable Starting Mode

Guo

Wang

2020

Symmetry

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Based on the rigid finite element method and multibody dynamics, a discrete model of a flexible conveyor belt considering the material viscoelasticity is established. RFE (rigid finite element) and SDE (spring damping element) are used to describe the rigidity and flexibility of a conveyor belt. The dynamic differential equations of the RFE are derived by using Lagrange’s equation of the second kind of the non-conservative system. The generalized elastic potential capacity and generalized dissipation force of the SDE are considered. The forward recursive formula is used to construct the conveyor belt model. The validity of dynamic equations of conveyor belt is verified by field test. The starting mode of the conveyor is simulated by the model.

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A comparison of rubber stress relaxation models for conveyor belt indentation rolling resistance calculations

Cited by 9 publications

References 9 publications

A general hyperelastic‐time model for numerical prediction on rubber relaxation and experimental validation under different environments

A general hyperelastic‐time model for numerical prediction on rubber relaxation and experimental validation under different environments

Influence of the elastic modulus of a conveyor belt on the power allocation of multi-drive conveyors

Multi Body Dynamic Equations of Belt Conveyor and the Reasonable Starting Mode

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