Trade-off between ordinary differential equation and Legendre polynomial methods to study guided modes in angle-ply laminate

Takali, Farid; Nirwal, Sonal; Othmani, Cherif; Groves, Roger M.

doi:10.1016/j.mtcomm.2022.105208

Cited by 1 publication

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References 20 publications

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“…In other words, a single flatness measurement cannot be viewed as an isolated point. Since the measurements of strip flatness meet the requirements of the Legendre polynomial, [ 20 ] this study uses the Legendre polynomial to fit the strip flatness ( F ) and then conducts density clustering analysis. Equation (5) shows the Legendre polynomial.

$$F = A_{1} \cdot a + A_{2} \cdot \left(\right.

…”

Section: Roll Profile Optimization Based On Dbscan and Nsga‐ii Algori...mentioning

confidence: 99%

Optimization of Multi‐Segment Work Roll Profile for 1340 mm HC Tandem Cold‐Rolling Mills Based on DBSCAN and NSGA‐II Algorithms

Chen

Liang-gui

Pan

et al. 2023

steel research int.

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To address issues with saturated work roll bending force (WRB), maximum contact pressure between the work roll and intermediate roll (QWI), and challenging flatness lifting in a four‐stand, six‐high tandem cold mill with a 1340 mm width, the density‐based spatial clustering of applications with noise algorithm and the non‐dominated sorting genetic algorithm II are used for optimal design and online application research of a five‐segment work roll profile. When compared to a flat roll and a parabolic roll profile with a maximum crown of 15 μm, the optimized roll profile decreases the secondary crown of the roll gap (CW2) by 5.99 and 1.055 μm, respectively, and the fourth crown of the roll gap (CW4) by 0.21 and 0.39 μm, respectively. Additionally, QWI in the field of roll gap crown adjustment decreases by 1.04 and 0.445 kN mm−1. Industrial testing shows that the average integrated value of flatness in rolling the four extreme specifications of 1340 mm tandem cold‐rolling mills lowers by 2.65 IU following the application of the new roll profile, and the average reduction of WRB in the last stand is 2.215 MPa.

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$$F = A_{1} \cdot a + A_{2} \cdot \left(\right.

…”

Section: Roll Profile Optimization Based On Dbscan and Nsga‐ii Algori...mentioning

confidence: 99%

Optimization of Multi‐Segment Work Roll Profile for 1340 mm HC Tandem Cold‐Rolling Mills Based on DBSCAN and NSGA‐II Algorithms

Chen

Liang-gui

Pan

et al. 2023

steel research int.

View full text Add to dashboard Cite

show abstract

Trade-off between ordinary differential equation and Legendre polynomial methods to study guided modes in angle-ply laminate

Cited by 1 publication

References 20 publications

Optimization of Multi‐Segment Work Roll Profile for 1340 mm HC Tandem Cold‐Rolling Mills Based on DBSCAN and NSGA‐II Algorithms

Optimization of Multi‐Segment Work Roll Profile for 1340 mm HC Tandem Cold‐Rolling Mills Based on DBSCAN and NSGA‐II Algorithms

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