New concept of friction sensor for strip rolling: Theoretical analysis

Legrand, Nicolas; Lavalard, T.; Martins, Augusto Moura

doi:10.1016/j.wear.2011.11.002

Cited by 16 publications

(22 citation statements)

References 5 publications

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“…The present method is more accurate than the previous one developed by Meierhofer and Stelson (1987). Moreover, Legrand et al (2010) conclude that the extreme temper-rolling condition (or skinpass) cannot be reconstructed because of the extremely small contact length and very sharp stress gradients. In this paper, it is demonstrated that the reconstruction of these extreme rolling conditions is satisfactory.…”

Section: Mathematical Approachmentioning

confidence: 70%

“…As explained in Section 3, this choice is a compromise between accuracy and computation time. By using the error estimate (11) and the three industrial rolling conditions taken from Legrand et al (2010), the stresses for different values of N s (i.e., different qualities of integration) are reconstructed. Therefore, it is possible to plot the error between the reconstruction and the applied stress against the number of interpolation points N s for each rolling condition.…”

Section: Discussion On N Smentioning

confidence: 99%

“…Very recently, Legrand et al (2010) computed this method and investigated its effectiveness by simulating several industrial conditions. The authors concluded that, for common industrial rolling conditions, the method developed by Meierhofer and Stelson (1987) is quite accurate but hardly usable because of the very long computation time.…”

Section: Principlesmentioning

confidence: 99%

“…The following industrial conditions given by Legrand et al (2010) are considered: hot rolling conditions, cold rolling conditions and temper-rolling conditions. Thus, the measurements at the inner radius are simulated by direct calculation (this part replaces the measurements provided by the fibre optics), and the contact stresses are inferred from the inverse method.…”

Section: Mathematical Approachmentioning

confidence: 99%

“…To determine A,˛andˇ, three industrial rolling conditions taken from Legrand et al (2010) are tested. Hot rolling conditions, cold rolling conditions and temper-rolling conditions cover the range of the possible signals during industrial rolling processes.…”

Section: Truncation Criterionmentioning

confidence: 99%

See 4 more Smart Citations

A new sensor for the evaluation of contact stress by inverse analysis during steel strip rolling

Weisz-Patrault¹,

Ehrlacher²,

Legrand³

2011

Journal of Materials Processing Technology

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International audienceKnowledge of the contact stress between roll and strip becomes a critical factor in modern, high-speed rolling mills. In this paper, an inverse analytical method is developed to determine the contact stress in the roll gap by measuring the stress tensor with fibre optics at only one point inside the roll. Unlike many inverse methods, no matrix inversion is needed because the very small contact length would lead to ill-conditioned matrices. Iterative methods are also not studied because short computation times are desired. This approach uses the theory of elasticity on the assumption that the problem is isothermal and planar and relies on the expansion of holomorphic functions into a power series. On the other hand, the computation time is studied to rapidly optimise the industrial parameters during the rolling process. Hot, cold and temper-rolling simulations are given to demonstrate the accuracy of the method and the feasibility of this new kind of sensor, taking into account the restrictions (e.g., frequency of acquisition) of the local measurement system

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Section: Mathematical Approachmentioning

confidence: 70%

Section: Discussion On N Smentioning

confidence: 99%

Section: Principlesmentioning

confidence: 99%

Section: Mathematical Approachmentioning

confidence: 99%

Section: Truncation Criterionmentioning

confidence: 99%

See 3 more Smart Citations

A new sensor for the evaluation of contact stress by inverse analysis during steel strip rolling

Weisz-Patrault¹,

Ehrlacher²,

Legrand³

2011

Journal of Materials Processing Technology

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Development of Inverse Method to Estimate Stresses on the Roll Surface During Rolling

Maeda,

Fujii,

Shiraishi

2023

Lecture Notes in Mechanical Engineering

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An improved inverse method by envelope fitting for prediction of contact stresses in strip rolling

Wang

Xiao

et al. 2017

J Braz. Soc. Mech. Sci. Eng.

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An improved inverse method by envelope fitting approach has been developed to improve prediction accuracy of contact stresses in strip rolling. By comparisons of the simulation data with theoretical results predicted by different inverse methods, it can be found that the improved inverse method by envelope fitting has a better predictive effect than the old method, in particular for the friction stress. And then, a rolling experiment is developed to validate the industrial feasibility of the improved inverse method. Comparing the results predicted by FEM and different inverse methods, it is also demonstrated that the improved inverse method is better than the old method in the rolling test. It is believed that the improved inverse method by envelope fitting approach would have great potential for industrial rolling.

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New concept of friction sensor for strip rolling: Theoretical analysis

Cited by 16 publications

References 5 publications

A new sensor for the evaluation of contact stress by inverse analysis during steel strip rolling

A new sensor for the evaluation of contact stress by inverse analysis during steel strip rolling

Development of Inverse Method to Estimate Stresses on the Roll Surface During Rolling

An improved inverse method by envelope fitting for prediction of contact stresses in strip rolling

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