Modern cutting line in a plate-finishing section

Bondar, Yu. G.; Belobrov, Yu. N.; Kalashnikov, A. A.; Reuka, Yu. Yu.; Tunik, A. A.

doi:10.1007/s11015-006-0023-8

Cited by 5 publications

(4 citation statements)

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“…(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14), (2-16), and (2-17), the nonlinear state equations can be linearized as follows:…”

Section: Evaluating the Stability Of The Nonlinear Systemmentioning

confidence: 99%

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Analyzing Nonlinear System Stability of a New Hydraulic Bilateral Rolling Shear

Han

et al. 2016

ISIJ Int.

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New hydraulic bilateral rolling shear is a composite connecting rod shearing mechanism with the upper blade driven by servo-cylinders. This new creative system would be unstable because of interaction between the mechanical dynamics and hydraulic dynamics of the machine. What's more, the positive feedback between hydro-cylinder & mechanic, which produces instability phenomenon. In this model, all instabilities result from the control of the fuel. In this study, by using the unsymmetrical valve to control unsymmetrical cylinder, this hydraulic servo model could get the nonlinear equation of the state between force and cylinder flow. Lyapunov stability theory is also used to analyze the stability of system to prove the consequence. According to the recorded data, actual trajectory agree well with given trajectory, which show that method in this paper can meet the practical demand in engineering. In addition, the experimental results show that the nonlinear system with multiple degrees of freedom is stable and its performance is outstanding.

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“…(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14), (2-16), and (2-17), the nonlinear state equations can be linearized as follows:…”

Section: Evaluating the Stability Of The Nonlinear Systemmentioning

confidence: 99%

“…The bilateral rolling shears is one of the most important device to cut the width of a medium steel plate, it could cut both sides of the plate simultaneously via the stepping cut method, 1,2) as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Analyzing Nonlinear System Stability of a New Hydraulic Bilateral Rolling Shear

Han

et al. 2016

ISIJ Int.

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“…A bilateral rolling shear for cutting the width of a medium steel plate in a production line while simultaneously shearing both sides of the plate via the stepping cut method 1,2) is designed as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of Mathematical Model for New Hydraulic Bilateral Rolling Shear

Huang

et al. 2016

ISIJ Int.

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“…When used to rolling cut the section for the second time, it would come to the defect of BUE. Therefore, it is very important to remold the inclined shear, make deep research of present rolling-cut theory and improve the present shear's rolling-cut quality [1][2]. During the process of developing a new kind of rolling-cut shear for a large-sized steel corporation, this paper adopts asymmetric crank structure and negative bias technology, and carries on a deep research of asymmetric and negative bias theory.…”

Section: Introductionmentioning

confidence: 99%

Study of Structure and Properties of New Rolling-Cut Shear

Chu

Huang

Zhang

et al. 2010

AMR

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Based on rolling-cut shear simulation, using a kind of single-shaft and double eccentricity rolling-cut shear, which adopts a new structure of asymmetric feature and negative bias, as the calculating model by establishing motion path equation of spatial shear mechanism, comparing with the steel shear forces, link forces and horizontal link force components with or without asymmetric feature, the asymmetric formulation is deduced. Such asymmetric crank structure can decrease horizontal force component between the linkages during rolling-cut process, increase the effective drive force on links while it comes to the maximum shear force, and decrease the extrusion of blade arc on steel edge as well. Theoretical analysis and steel-shearing quality at site indicate that asymmetric and negative bias is an important and efficient way to prolong the lifetime of blade, decrease blade wear, improve shearing quality, and maintain the constant clearance between blades.

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Modern cutting line in a plate-finishing section

Cited by 5 publications

References 0 publications

Analyzing Nonlinear System Stability of a New Hydraulic Bilateral Rolling Shear

Analyzing Nonlinear System Stability of a New Hydraulic Bilateral Rolling Shear

Stability Analysis of Mathematical Model for New Hydraulic Bilateral Rolling Shear

Study of Structure and Properties of New Rolling-Cut Shear

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