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Journal articles on the topic 'Rolling mode'

Author: Grafiati

Published: 29 September 2021

Last updated: 18 July 2025

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1

Li, Xue Jun, and Bai Hui Yao. "The Modal Analysis of Rotor-Rolling Bearing-Base System." Advanced Engineering Forum 2-3 (December 2011): 972–77. http://dx.doi.org/10.4028/www.scientific.net/aef.2-3.972.

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Takes the comprehensive fault simulation testbed of Spectra Quest as an object, the finite element model of rotor-rolling bearing-base system is constructed by finite element analysis software ANSYS. Modes of rotor-rolling bearing system and rotor-rolling bearing-base system are analysed, the influence of base is researched by comparing their natural frequency and vibration mode. The influence of bearing rigidity to system mode is studied by comparing the natural frequency of rotor-rolling bearing-base system with different bearing rigidity.

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2

Marynych, Ivan, and Olga Serdiuk. "MODELING OF A SYSTEM FOR AUTOMATIC REGULATION OF THE TENSION MODE IN THE ROUGHING GROUP OF STANDS OF A CONTINUOUS SECTION MIL." Bulletin of National Technical University "KhPI". Series: System Analysis, Control and Information Technologies, no. 1 (5) (July 12, 2021): 67–73. http://dx.doi.org/10.20998/2079-0023.2021.01.11.

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The subject of the research is automatic control system modeling features for tensioning of stands roughing group, which takes into account changes in the rolling speed at exit of the previous stand and entrance to the next stand. Control systems for high-speed rolling on section mills are the most critical systems, since the trouble-free operation of rolling mill largely depends on their work. Rolling speed control is understood to mean tension regulation in the roughing group of stands and stabilization of the rolling loop in the finishing groups. The influence of such technological factors

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3

Ma, Wei Jin, Yun Bo Wei, Feng Lan Li, Jun Yuan Wang, and Xiao Yan Xiong. "Theoretical Computation and Experimental Analysis of Natural Frequencies of Hot Rolling-Mill Housing." Applied Mechanics and Materials 278-280 (January 2013): 169–73. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.169.

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Three-dimensional digital model of hot rolling-mill housing was built. The natural frequency and vibration mode shape of the first 10 order modes of hot rolling mill housing were calculated using ANSYS software. The vibration mode shape was studied in detail. The striking vibration signal and subsequently the natural frequencies were measured by placing two 3-Dimensional accelerators in the key points of the rolling mill horsing. Theoretical calculations and experimental results verified each other，high agreement was shown between the experimental results and the theoretical results. The first

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4

Aoh, Jong Ning, Han Kai Hsu, Wei Ting Dai, Chun Yen Lin, and Yen Liang Yeh. "Numerical Simulation on Correcting Camber and Wedge of Steel Slabs in Hot Rolling Mill." Key Engineering Materials 626 (August 2014): 570–75. http://dx.doi.org/10.4028/www.scientific.net/kem.626.570.

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In the hot rolling process, the steel slab may experience a temperature gradient along its transverse direction which may cause camber and wedge after rolling. Camber and wedge phenomenon will affect the quality of the steel plate. To eliminate camber and wedge phenomenon, a pair of side guides is placed before and behind the hot rolling mill. The position mode and the force mode are the control modes for side guides to correct the slab shape and to guide the slab to follow rolling direction. Finite element analysis using ABAQUS was applied to simulate hot rolling process to find the correctio

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5

Wu, Guofang, Yong Zhong, and Haiqing Ren. "Effects of Grain Pattern on the Rolling Shear Properties of Wood in Cross-Laminated Timber." Forests 12, no. 6 (2021): 668. http://dx.doi.org/10.3390/f12060668.

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Rolling shear modulus and strength are the key factors affecting the mechanical performance of some wood products such as cross-laminated timber (CLT). As reported, rolling shear property strongly depends on the sawing pattern such as the aspect ratio and grain direction (grain mode). However, the mechanism behind this phenomenon has not yet been clarified. In this work, the rolling shear modulus and strength of spruce-pine-fir (SPF) with different grain modes and aspect ratios were experimentally investigated. In addition, a theoretical investigation was carried out to reveal the mechanism be

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6

Wang, Zhaotian, Yezhuo Li, and Yan-An Yao. "Motion and path planning of a novel multi-mode mobile parallel robot based on chessboard-shaped grid division." Industrial Robot: An International Journal 45, no. 3 (2018): 390–400. http://dx.doi.org/10.1108/ir-01-2018-0001.

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Purpose The purpose of this paper is to put forward a rolling assistant robot with two rolling modes, and the multi-mode rolling motion strategy with path planning algorithm, which is suitable to this multi-mode mobile robot, is proposed based on chessboard-shaped grid division (CGD). Design/methodology/approach Based on the kinematic analysis and motion properties of the mobile parallel robot, the motion strategy based on CGD path planning algorithm of a mobile robot with two rolling modes moving to a target position is divided into two parts, which are local self-motion planning and global p

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7

Jia, Xingdou, Shen Wang, Xiaoqiang Yan, Lidong Wang, and Haipeng Wang. "Research on Dynamic Response of Cold Rolling Mill with Dynamic Stiffness Compensation." Electronics 12, no. 3 (2023): 599. http://dx.doi.org/10.3390/electronics12030599.

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The vibration of the vertical system of a cold rolling mill is a major concern for factory production. In factory production, it is found that the thickness control system with dynamic stiffness compensation of the rolling mill has a significant impact on the rolling mill vibration. In this work, a mechanical hydraulic coupling vibration model of a cold rolling mill with a thickness control system with dynamic stiffness compensation was established. MATLAB/Simulink was used to simulate and analyze the vibration response characteristics of the mechanical structure of the rolling mill and mechan

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8

Li, Tangwei, Hulun Guo, Zhenyu Cheng, Rixiu Men, Jun Li, and Yushu Chen. "Nonlinear Vibration Analysis of Turbocharger Rotor Supported on Rolling Bearing by Modified Incremental Harmonic Balance Method." Machines 13, no. 5 (2025): 360. https://doi.org/10.3390/machines13050360.

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High-speed rolling bearings exhibit low friction, high mechanical efficiency, low lubrication requirements, and excellent acceleration performance. The replacement of floating ring bearings in turbochargers with rolling bearings is an important tendency for modern turbochargers. However, due to the nonlinearity in rolling bearings, the nonlinear vibration characteristics of the turbocharger rotor system need to be clearly revealed. The turbocharger rotor is modeled by a lumped mass model. The nonlinear rolling bearing model is derived using the Hertz contact theory. The vibration responses of

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9

Zhao, Peng, Yawei Li, Baoming Han, Ruixia Yang, and Zhiping Liu. "Integrated Optimization of Rolling Stock Scheduling and Flexible Train Formation Based on Passenger Demand for an Intercity High-Speed Railway." Sustainability 14, no. 9 (2022): 5650. http://dx.doi.org/10.3390/su14095650.

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The key features of an intercity high-speed railway (IHSR) include its high frequency, the short intervals, and the short distances covered. The mode of rolling stock scheduling generally uses fixed segments. In view of the fact that intercity passenger demand has the characteristics of large fluctuations in terms of time and direction, the use of the traditional rolling stock scheduling plan with a fixed train formation will result in a mismatch between the train formation and passenger demand. In order to improve the matching of train formation and passenger demand and increase the utilizati

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10

Viktor, Gutarevich, and Ignatkina Evgenia. "Study of the braking regime of rolling stock mining suspended monorail taking into account clearances in the coupling." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, no. 5 (August 6, 2020): 108–15. http://dx.doi.org/10.21440/0536-1028-2020-5-108-115.

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Introduction. Currently, mine suspended monorails are becoming more common in coal mines for auxiliary cargo and people transportation. Compared to ground transport, monorail has significant differences, which does not allow to fully use the previously obtained results of braking modes studies. Research aims to establish regularities in the processes that occur during the mine suspended monorail road rolling stock braking mode, taking into account clearances in the couplings. Methodology. To substantiate the parameters and designs of brake and coupling devices of a mine suspended monorail, a m

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11

Guo, Yuanjing, Youdong Yang, Shaofei Jiang, Xiaohang Jin, and Yanding Wei. "Rolling Bearing Fault Diagnosis Based on Successive Variational Mode Decomposition and the EP Index." Sensors 22, no. 10 (2022): 3889. http://dx.doi.org/10.3390/s22103889.

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Rolling bearing is an important part guaranteeing the normal operation of rotating machinery, which is also prone to various damages due to severe running conditions. However, it is usually difficult to extract the weak fault characteristic information from rolling bearing vibration signals and to realize a rolling bearing fault diagnosis. Hence, this paper offers a rolling bearing fault diagnosis method based on successive variational mode decomposition (SVMD) and the energy concentration and position accuracy (EP) index. Since SVMD decomposes a vibration signal of a rolling bearing into a nu

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12

Hu, Ke, Xiao Kai Wang, Jian Lan Luo, and Xi Jun Wu. "The Ring’s Axial Deformation Control Method of Vertical Hot Ring Rolling Process." Advanced Materials Research 941-944 (June 2014): 1865–70. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1865.

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Axial deformation of the ring during the traditional vertical hot ring rolling (VHRR) process has a considerable effect on the ring products’ quality. In this paper, the ring’s axial deformation of VHRR process of three different rolling modes, that is, open-die mode, close-die mode and open-die mode with conical rolls like the radial-axial ring rolling (RARR) process is analyzed. Three groups of 3D coupled thermo-mechanical FE models of VHRR process are established in software ABAQUS, and the axial deformation and the width spread of the rings are studied in detail. Finally, a special conical

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13

Zhang, Qianqian, Yezhuo Li, Yan-An Yao, and Ruiming Li. "Design and locomotivity analysis of a novel deformable two-wheel-like mobile mechanism." Industrial Robot: the international journal of robotics research and application 47, no. 3 (2020): 369–80. http://dx.doi.org/10.1108/ir-09-2019-0183.

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Purpose The purpose of this paper is to propose a deformable two-wheel-like mobile mechanism based on overconstrained mechanism, with the abilities of fast rolling and obstacle surmounting. The drive torque of the multi-mode motions is generated by self-deformation. Moreover, the analyses of feasibility and locomotivity of two mobile modes are presented. Design/methodology/approach The main body of the two-wheel-like mobile mechanism is a kind of centrally driven 4 R linkages. The mobile mechanism can achieve the capabilities of fast rolling and obstacle surmounting through integrating two mob

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14

Hu, P.-H., and K. F. Ehmann. "Fifth octave mode chatter in rolling." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 215, no. 6 (2001): 797–809. http://dx.doi.org/10.1243/0954405011518737.

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15

Kozhevnikov, A. V., D. L. Shalaevskii, I. A. Kozhevnikova, A. S. Smirnov, and K. P. Korepina. "Algorithm for designing asymmetrical rolling mode." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 80, no. 6 (2024): 72–81. http://dx.doi.org/10.32339/0135-5910-2024-6-72-81.

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Sliding of the work rolls along the strip is one of the emergency operating modes of the stand, as a result of which the steady rolling process is disrupted and fluctuations in the tension and thickness of the finished strip occur. The work obtained a condition for eliminating roll slippage along the strip in the general case of the technological process, when the diameters of the barrels of the upper and lower work rolls are different. To do this, when calculating the parameters of the asymmetric mode, the following actions are implemented. First, the presence of a leading zone is assessed at

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16

Wang, Jieyu, Yanan Yao, and Xianwen Kong. "A rolling mechanism with two modes of planar and spherical linkages." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 12 (2015): 2110–23. http://dx.doi.org/10.1177/0954406215590188.

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A novel deformable rolling mechanism is proposed in this paper. The mechanism can switch between two modes: a planar linkage mode and a spherical linkage mode. In the planar linkage mode, the mechanism rolls like a planar four-bar mechanism and moves along a straight line. In the spherical linkage mode, the mechanism rolls as a spherical four-bar mechanism and moves along a polygon. A standing posture, which likes an upright pyramid, of the rolling mechanism is also identified. After the description of the novel mechanism, the kinematic analysis of the mechanism is presented, and appropriate c

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17

Karpenko, Volodymyr, and Eduard Neskreba. "Refined assessment of tire rolling resistance in the starting mode." Automobile transport, no. 51 (December 29, 2022): 5–13. http://dx.doi.org/10.30977/at.2219-8342.2022.51.0.01.

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Problem. Rolling resistance is one of the most important operational characteristics of a car tire. First of all, the fuel consumption, durability and service life of the tire depend on the rolling resistance. Of course, the higher the rolling resistance, the faster and more intensively the tire will wear out. Also, car braking parameters, such as deceleration and, accordingly, the braking distance, may indirectly depend on the rolling resistance characteristics. In turn, rolling resistance is influenced by the properties of the tire itself, as well as the condition of the road surface and wea

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18

Yegorov, O. P., M. O. Rybalchenko, and I. O. Manachyn. "Adaptive control system of free rolling speed mode with fuzzy controller." Fundamental and applied problems of ferrous metallurgy 37 (2023): 340–48. http://dx.doi.org/10.52150/2522-9117-2023-37-340-348.

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The best high-speed mode of rolling mills is the mode of free rolling with loop formation in finishing groups of cages. Stabilization of the loop is carried out by the control system of the rotation frequency of the rolls of rolling cages based on the information of the sensor of the position of the loop. The increase in the loop depends on the frequency of rotation of the rolls of adjacent cages and the coefficient of extraction of the rolled product in the cage following the adjustable gap. To set up the system, it is necessary to know the numerical characteristics of the influences that dis

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19

Ta, Yuntian, and Tiantian Wang. "A rolling bearing state evaluation method based on deep learning combined with Wiener process." PHM Society European Conference 8, no. 1 (2024): 8. http://dx.doi.org/10.36001/phme.2024.v8i1.4095.

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As a key component of rotating parts, rolling bearings largely determine the operation safety of equipment. However, in practical applications, because the degradation trajectory of rolling bearings cannot be truly characterized, the existing model cannot accurately describe the degradation trajectory of rolling bearings, resulting in the running state of rolling bearings cannot be directly evaluated. Therefore, a method of rolling bearing state assessment based on deep learning combined with Wiener process is proposed in this paper. Firstly, a deep network model is constructed by deep learnin

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Huang, Haibo, and Xi-Yun Lu. "An ellipsoidal particle in tube Poiseuille flow." Journal of Fluid Mechanics 822 (June 7, 2017): 664–88. http://dx.doi.org/10.1017/jfm.2017.298.

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A suspended ellipsoidal particle inside a Poiseuille flow with Reynolds number up to 360 is studied numerically. The effects of tube diameter ($D$), inertia of the particle and the flow, and the particle geometry (both prolate and oblate ellipsoids) are considered. When a prolate particle with $a/b=2$ is inside a wider tube (e.g. $D/A>1.9$), where $A=2a$ is the length of the major axis of the particle, the terminal stable state is tumbling. When the prolate particle is inside a narrower tube ($1.0<D/A<1.9$), log-rolling or kayaking modes may appear. Which mode occurs depends on the co

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21

Ievlev, M. G. "Automatic control of the rolling mode “at an angle” on a reversing hot rolling mill." Mathematical machines and systems 2 (2020): 99–104. http://dx.doi.org/10.34121/1028-9763-2020-2-99-104.

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One of the most important indicators of the quality of control of the rolling process on a plate mill is the accuracy of obtaining the geometric dimensions of rolled metal, which determines the cost of metal per ton of product, in particular, the accuracy of the implementation of a given width. The sheet width exceeding the width of the initial billet, under rolling on plate mills, is obtained at the stage of breaking the width in a horizontal stand. Breakdown of the width in most cases is carried out by rolling the workpiece at an angle of to the longitudinal axis of the future sheet. However

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22

He, Youliang, and Erik J. Hilinski. "Textures of Non-Oriented Electrical Steel Sheets Produced by Skew Cold Rolling and Annealing." Metals 12, no. 1 (2021): 17. http://dx.doi.org/10.3390/met12010017.

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In order to investigate the effect of cold rolling deformation mode and initial texture on the final textures of non-oriented electrical steels, a special rolling technique, i.e., skew rolling, was utilized to cold reduce steels. This not only altered initial textures but also changed the rolling deformation mode from plane-strain compression (2D) to a more complicated 3D mode consisting of thickness reduction, strip elongation, strip width spread and bending. This 3D deformation induced significantly different cold-rolling textures from those observed with conventional rolling, especially for

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23

Gordienko, A. I., I. V. Vlasov, and Yu I. Pochivalov. "Effect of accelerated cooling after cross-helical rolling on formation of structure and low-temperature fracture toughness of low-carbon steel." Izvestiya. Ferrous Metallurgy 66, no. 3 (2023): 311–19. http://dx.doi.org/10.17073/0368-0797-2023-3-311-319.

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The effect of accelerated cooling after cross-helical rolling of X70 low-carbon steel on the formation of structures and mechanical properties under static tension and impact bending was investigated. The use of interrupted accelerated cooling of steel after cross-helical rolling with exposure at 530 °C (mode I) and continuous accelerated cooling (mode II) leads to the formation of different types and ratios of structures in steel. After rolling according to mode I, the structure is characterized by the presence of ferrite, troostite, granular bainite, and fine Fe3C carbides. After rolling acc

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Wang, Heng-di, Si-er Deng, Jian-xi Yang, and Hui Liao. "A fault diagnosis method for rolling element bearing (REB) based on reducing REB foundation vibration and noise-assisted vibration signal analysis." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 7 (2018): 2574–87. http://dx.doi.org/10.1177/0954406218791209.

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Owing to the problem of the incipient fault characteristics being difficult to be extracted from the raw vibration signal of rolling element bearing, based on the empirical mode decomposition and kurtosis criteria, a fault diagnosis method for rolling element bearing is proposed by reducing rolling element bearing foundation vibration and noise-assisted vibration signal analysis. Firstly, rolling element bearing vibration signal is decomposed into a set of intrinsic mode functions using empirical mode decomposition and the intrinsic mode function component with the maximal kurtosis value is se

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Li, Yezhuo, Yan-An Yao, Junlin Cheng, Yaobin Tian, and Ran Liu. "An agile assistant robot integrating operation and rolling locomotion." Industrial Robot: An International Journal 44, no. 1 (2017): 114–26. http://dx.doi.org/10.1108/ir-05-2016-0147.

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Purpose The purpose of this paper is to propose an agile assistant robot to be used as a mobile partner with two rotational motions and one translational motion. This robot possesses the rolling function and three operating abilities to assistant human beings in the industrial environment. Design/methodology/approach The main body of the robot is a typical 4-RSR (where R denotes a revolute joint and S denotes a spherical joint) parallel mechanism. The mechanism can reach any position on the ground by two rolling modes (the equivalent Watt linkage rolling mode and the equivalent 6R linkage roll

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Sverdlik, Mikhail, Alexander Pesin, D. O. Pustovoytov, and Alexander Perekhozhikh. "Numerical Research of Shear Strain in an Extreme Case of Asymmetric Rolling." Advanced Materials Research 742 (August 2013): 476–81. http://dx.doi.org/10.4028/www.scientific.net/amr.742.476.

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Considerable shear strain is necessary for manufacture of metallic materials with ultramicrograin structure. For flat rolling shear strain intensity is determined by two components: compression strain and shear strain . The vertical asymmetric sheet rolling process in rolling-drawing mode was investigated with the purpose of shear strain implementation. Calculation results show that during asymmetric rolling mode a vertical cross-section inclination takes place being especially pronounced with the total amount of deformation of 50% and more.

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Yao, Ganzhou, Bishuang Fan, Wen Wang, and Haihang Ma. "A Novel Median-Point Mode Decomposition Algorithm for Motor Rolling Bearing Fault Recognition." Mathematical Problems in Engineering 2020 (November 12, 2020): 1–10. http://dx.doi.org/10.1155/2020/9406479.

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Precise fault recognition of motor rolling bearing fault is playing a significant role in any machinery and equipment. However, conventional decomposition methods fail to completely reveal the fault signal information of motor rolling bearing due to mixed modes problem. To solve the problem, the median-point mode decomposition (MMD) method is presented. The MMD method uses sort-based inversion to sort out each variation of the same time interval for better and specific mode decomposition, with the assistance of the advanced envelope curve formed by the median points between adjacent extreme po

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Druzhinin, Valery Mikhailovich, Alexey Anatolievich Kalinin, and Galina Alexandrovna Sivyakova. "Rolling stand electric drive model regarding influence of power supply network parameters." Rolling stand electric drive model regarding influence of power supply network parameters 29, no. 3 (2023): 1213–23. https://doi.org/10.11591/ijeecs.v29.i3.pp1213-1223.

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Operation mode of hot rolling mill finishing group stands of ArcelorMittal Temirtau JSC electric drives along with thyristor converter units, intended for the drives supply effect significantly the power network parameters. While being carried out the experimental research on operating modes of power network supplying the rolling mill, some oscillograms were constructed that indicate voltage during the rolling process. Analyzing the oscillograms it appears that there are unacceptable voltage drops throughout the network (more than 10%), that, in its turn, effects negatively the main and auxili

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29

Umanskii, A. A., and A. B. Yur'ev. "Improving the technology of rolling rail steels by a comprehensive optimization parameter." Izvestiya. Ferrous Metallurgy 64, no. 11 (2021): 802–14. http://dx.doi.org/10.17073/0368-0797-2021-11-802-814.

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The authors have developed a technique for improving the rolling modes of rail steels based on a complex optimization parameter. The technology of rolling rail profiles in the roughing stands of rail-and-structural steel mills and the technology of rolling ball blanks and grinding balls from the rejection of continuously cast blanks of rail steels are selected as the methodology objects. The generalized optimization parameter is the generalized Harrington desirability function, which depends on the partial desirability indicators according to the criteria of energy efficiency, quality of rolle

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LI, R., Y. J. SHI, and H. L. XU. "INTEGRATED PID CONTROLLER DESIGN FOR AN UNMANNED AERIAL VEHICLE WITH STATIC STABILITY." ANZIAM Journal 54, no. 3 (2013): 200–215. http://dx.doi.org/10.1017/s1446181113000199.

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AbstractThis paper presents an integrated guidance and control (IGC) design method for an unmanned aerial vehicle with static stability which is described by a nonlinear six-degree-of-freedom (6-DOF) model. The model is linearized by using small disturbance linearization. The dynamic characteristics of pitching mode, rolling mode and Dutch rolling mode are obtained by analysing the linearized model. Furthermore, an IGC design procedure is also proposed in conjunction with a proportional–integral–derivative (PID) control method and fuzzy control method. A PID controller is applied in the contro

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Ding, Jiakai, Liangpei Huang, Dongming Xiao, and Xuejun Li. "GMPSO-VMD Algorithm and Its Application to Rolling Bearing Fault Feature Extraction." Sensors 20, no. 7 (2020): 1946. http://dx.doi.org/10.3390/s20071946.

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The vibration signal of an early rolling bearing is nonstationary and nonlinear, and the fault signal is weak and difficult to extract. To address this problem, this paper proposes a genetic mutation particle swarm optimization variational mode decomposition (GMPSO-VMD) algorithm and applies it to rolling bearing vibration signal fault feature extraction. Firstly, the minimum envelope entropy is used as the objective function of the GMPSO to find the optimal parameter combination of the VMD algorithm. Then, the optimized VMD algorithm is used to decompose the vibration signal of the rolling be

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Xiao, Maohua, Kai Wen, Cunyi Zhang, Xiao Zhao, Weihua Wei, and Dan Wu. "Research on Fault Feature Extraction Method of Rolling Bearing Based on NMD and Wavelet Threshold Denoising." Shock and Vibration 2018 (August 19, 2018): 1–11. http://dx.doi.org/10.1155/2018/9495265.

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Rolling bearings are the core components of the machine. In order to save costs and prevent accidents caused by bearing failures, the rolling bearing fault diagnosis technology has been widely used in the industrial field. At present, the proposed methods include wavelet transform, morphological filtering, empirical mode decomposition (EMD), and ensemble empirical mode decomposition (EEMD), which have obvious shortcomings. As it is difficult to extract the fault characteristic frequency caused by nonlinear and nonstationary features of the rolling bearing fault signal, this paper presents a fa

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Kozhevnikov, A. V. "Effect of gripping conditions and strip oscillations on vibrations originating at cold rolling." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 76, no. 1 (2020): 54–58. http://dx.doi.org/10.32339/0135-5910-2020-1-54-58.

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The process of continuous rolling is subjected to non-stationarity, accompanied by oscillations of not only basic technological and power parameters, but also parameters in the hearth of deformation. Non-stationarity at the rolling accounting high dynamic of the process results in origination of negative vibration effects. To prevent the vibrations originations the rolling speed is decreased, which prevents the reaching of the designing parameters of rolling mills operation. The study of influence of non-stationarity of the rolling technological process on gripping conditions and origination o

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Sun, Yan Ping, and De Chen Zhang. "Research on the Vibration of Rolling Mill." Advanced Engineering Forum 2-3 (December 2011): 843–47. http://dx.doi.org/10.4028/www.scientific.net/aef.2-3.843.

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In this paper a horizontal vibration problem in strip rolling was studied; dynamic model was established; the mechanism of self-excited vibration was analyzed. The main reason of surface quality of strip is self-excited vibration. A vertical natural frequency and vibration mode of the rolling mill are obtained by finite element method. It lays the theoretic foundation for future researches on rolling mill vibraton.

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Zhao, Liye, Wei Yu, and Ruqiang Yan. "Rolling Bearing Fault Diagnosis Based on CEEMD and Time Series Modeling." Mathematical Problems in Engineering 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/101867.

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Accurately identifying faults in rolling bearing systems by analyzing vibration signals, which are often nonstationary, is challenging. To address this issue, a new approach based on complementary ensemble empirical mode decomposition (CEEMD) and time series modeling is proposed in this paper. This approach seeks to identify faults appearing in a rolling bearing system using proper autoregressive (AR) model established from the nonstationary vibration signal. First, vibration signals measured from a rolling bearing test system with different defect conditions are decomposed into a set of intri

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Choi, Won Hong, and J. Stuart Bolton. "Modeling of Sound Radiation from a Loaded Rolling Tire." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 5 (2023): 3391–401. http://dx.doi.org/10.3397/in_2023_0488.

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In recent work it has been possible to model the surface vibration of a loaded rolling tire, including the influence of the acoustic mode that forms within the tire cavity. For example, it has been found that the acoustic cavity mode splits owing to the deformation of the tire when it is loaded, and that the split widens owing to Doppler effects when the tire is rolling. It has also been demonstrated that the force at the hub that results from the acoustic cavity mode is strongly dependent on interaction with circumferential structural modes of the treadband. The finite element models develope

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Manjunatha, G., and H. C. Chittappa. "Bearing Fault Classification using Empirical Mode Decomposition and Machine Learning Approach." Journal of Mines, Metals and Fuels 70, no. 4 (2022): 214. http://dx.doi.org/10.18311/jmmf/2022/30060.

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Industrial machinery often breakdowns due to faults in rolling bearing. Bearing diagnosis plays a vital role in condition monitoring of machinery. Operating conditions and working environment of bearings make them prone to single or multiple faults. In this research, signals from both healthy and faulty bearings are extracted and decomposed into empirical modes. By analyzing different empirical modes from 8 derived empirical modes for healthy and faulty bearings under different fault sizes, the first mode has the most information to classify bearing condition. From the first empirical mode eig

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Umanskii, A. A., A. B. Yur’ev, A. S. Simachev, and L. V. Dumova. "Influence of deformation parameters on quality of billets and grinding balls during their production from rejects of rail steels." Izvestiya. Ferrous Metallurgy 65, no. 8 (2022): 596–603. http://dx.doi.org/10.17073/0368-0797-2022-8-596-603.

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The conducted studies have determined the regularities of influence of rolling parameters of billets and grinding balls in their production from the rejects of K76F rail steel on probability of defects formation during deformation. Modeling of the rolling process of high-grade billets from the rejects of continuously cast ingots of rail steel of the specified grade in DEFORM-2D software package allowed us to establish a significant effect of such parameters as: partial coefficients of drawing along the transfer bar, frequency of rolling edges, and rolling temperature, on the probability of def

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Qiu, Chaoxin, Rui Xu, Xin Xu, and Shengcan Ma. "Finite Element Simulation of Multi-Pass Rolling of a Pure Aluminum Target under Different Rolling Routes and Methods." Metals 14, no. 8 (2024): 845. http://dx.doi.org/10.3390/met14080845.

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By coordinating the rolling direction and mode, a multi-rolling plastic deformation process for an aluminum (Al) sputter target is proposed to achieve multiple excellent properties, including a uniform and fine grain structure and low defect risk, which are significant in producing high-quality sputtered films. In this work, therefore, DEFORM 3D 10.2 software is adopted to establish three strategies, clock-synchronous rolling, cross-synchronous rolling, and clock–snake rolling. The effect of different rolling routes and modes on the metal flow velocity (MFV), effective strain distribution (ESD

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Yegorov, О. P., M. V. Mykhailovskyi, and M. O. Rybalchenko. "SYSTEMATIC ANALYSIS OF INVARIANCE OF SEPARATE CONTROL CIRCUITS OF HIGH-SPEED ROLLING WITH A LOOP ON CONTINUOUS SMALL SECTION MILL." Modern Problems of Metalurgy, no. 28 (June 30, 2025): 152–61. https://doi.org/10.34185/1991-7848.2025.01.09.

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The condition of the rolled products in the interstand gaps of continuous small-section mills is determined by the difference in rolling speeds at the exit from the previous stand and at the entrance to the next stand. A change in the rolling speed in any of the stands in the gap, arising under the action of process disturbances, leads to a deviation from the initial rolling mode in this gap. Elimination of such a deviation is achieved by targeted correction of the roll speed of one of the stands. However, this disrupts the speed mode in the adjacent interstand gap along the rolling direction,

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Wang, Fengtao, Gang Deng, Chenxi Liu, Wensheng Su, Qingkai Han, and Hongkun Li. "A deep feature extraction method for bearing fault diagnosis based on empirical mode decomposition and kernel function." Advances in Mechanical Engineering 10, no. 9 (2018): 168781401879825. http://dx.doi.org/10.1177/1687814018798251.

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To avoid catastrophic failures in rotating machines, it is of great significance to continuously monitor and diagnose the running state of rolling bearings. In this article, a deep feature extraction method for rolling bearing fault diagnosis based on empirical mode decomposition and kernel function is proposed. First, the vibration signals under different states of rolling bearing are decomposed by empirical mode decomposition. Second, to extract more representative high-level features, the obtained intrinsic mode functions are preprocessed with singular value decomposition to acquire singula

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42

Salehizadeh, H., and N. Saka. "Crack Propagation in Rolling Line Contacts." Journal of Tribology 114, no. 4 (1992): 690–97. http://dx.doi.org/10.1115/1.2920937.

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The stress intensity factors for short straight and branched subsurface cracks subjected to a Hertzian loading are calculated by the finite element method. The effect of crack face friction on stress intensity factors is considered for both straight and branched cracks. The calculations show that the straight crack is subjected to pure mode II loading, whereas the branched crack is subjected to both mode I and mode II, with ΔKI/ΔKII < 0.25. Although KI is small, it strongly influences KII by keeping the branched crack faces apart. Based on the ΔKII values and Paris’s crack growth model, the

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Loktev, V. M., and Yu G. Pogorelov. "Boundary friction on molecular lubricants: rolling mode?" Low Temperature Physics 30, no. 4 (2004): 317–20. http://dx.doi.org/10.1063/1.1705439.

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Kuhn, E., L. Uhlig, M. Wachs, U. T. Schwarz, and A. Thränhardt. "Mode rolling effects in nitride laser diodes." Engineering Research Express 2, no. 3 (2020): 035036. http://dx.doi.org/10.1088/2631-8695/abb6c8.

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Ji, Houxin, Ke Huang, and Chaoquan Mo. "Research on the Application of Variational Mode Decomposition Optimized by Snake Optimization Algorithm in Rolling Bearing Fault Diagnosis." Shock and Vibration 2024 (April 5, 2024): 1–21. http://dx.doi.org/10.1155/2024/5549976.

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The rolling bearing is one of the commonly used mechanical components in rotating machinery, and its health directly affects the normal operation of equipment. However, the fault signal of rolling bearing is susceptible to noise interference, which makes it difficult to extract the fault characteristics of the rolling bearing and thus affects the accuracy of the diagnosis results. To address this problem, this paper proposes a method by using a snake optimization algorithm to optimize variational mode decomposition (SOA-VMD) and applies it to the extraction of the fault feature of rolling bear

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Qin, Jian, Taiyong Fei, Zhiguo Qu, Yinan Zhang, and Xinyi Yu. "Fault Diagnosis of Rolling Bearing Based on ICEEMDAN and SSA-RVM." Journal of Physics: Conference Series 2419, no. 1 (2023): 012077. http://dx.doi.org/10.1088/1742-6596/2419/1/012077.

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Abstract In order to effectively improve the fault identification rate of correlation vector machine (RVM) in bearing fault model diagnosis and identification, a rolling bearing troubleshooting method improvement-based adaptive white noise complete integrated empirical mode decomposition (ICEEMDAN) and sparrow search algorithm (SSA) optimized correlation vector machine (RVM) is proposed. A rolling bearing troubleshooting method improvement-based adaptive white noise complete integrated empirical mode decomposition (ICEEMDAN) and sparrow search algorithm (SSA) optimized correlation vector machi

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Ma, Fang, Liwei Zhan, Chengwei Li, Zhenghui Li, and Tingjian Wang. "Self-Adaptive Fault Feature Extraction of Rolling Bearings Based on Enhancing Mode Characteristic of Complete Ensemble Empirical Mode Decomposition with Adaptive Noise." Symmetry 11, no. 4 (2019): 513. http://dx.doi.org/10.3390/sym11040513.

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Originally, a rolling bearing, as a key part in rotating machinery, is a cyclic symmetric structure. When a fault occurs, it disrupts the symmetry and influences the normal operation of the rolling bearing. To accurately identify faults of rolling bearing, a novel method is proposed, which is based enhancing the mode characteristics of complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN). It includes two parts: the first is the enhancing decomposition of CEEMDAN algorithm, and the second is the identified method of intrinsic information mode (IIM) of vibration signal. F

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Hu, Ai Jun, Yu Zhu, and Xue Wang. "Analysis of Fault Diagnosis for Rolling Bearing Based on EMD and Local Smoothness Index." Advanced Materials Research 490-495 (March 2012): 2007–11. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.2007.

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A new method based on EMD (empirical mode decomposition) and local smoothness index for rolling bearing fault diagnosis is proposed. With this method, the local smooth index of each IMF (intrinsic mode function) got by empirical mode decomposition is calculated, IMFs with smaller local smoothness index and smaller fluctuation of its smoothness index are selected to analysis with Hilbert envelope spectrum, and the method proposed overcomes blindness of choosing the IMFs with the common EMD envelope method. Factual fault signal of rolling bearing is analyzed; the fault frequency of the rolling b

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Wei, Xing Chun, Yu Lin Tang, and Tao Chen. "Research of Rolling Bearing Fault Feature Extraction Based on EMD and Choi-Williams." Advanced Materials Research 694-697 (May 2013): 1377–81. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.1377.

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Aiming at rolling bearing fault signal of the non stationary feature, Apply a new method to the rolling bearing vibration signal of feature extraction, which is combined the Empirical Mode Decomposition (EMD) and the Choi-Williams distribution. Firstly, original signals were decomposed into a series of intrinsic mode functions (IMF) of different scales. To the decomposed each IMF component for Choi-Williams time-frequency analysis, Then take the linear superposition, finally obtained the rolling bearing vibration signal of Choi-Williams distribution. After the analyses of the rolling bearing i

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Zheng, Xiaoxia, Guowang Zhou, Dongdong Li, and Haohan Ren. "Application of Variational Mode Decomposition and Permutation Entropy for Rolling Bearing Fault Diagnosis." June 2019 24, no. 2 (2019): 303–11. http://dx.doi.org/10.20855/ijav.2019.24.21325.

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Rolling bearings are the key components of rotating machinery. However, the incipient fault characteristics of a rolling bearing vibration signal are weak and difficult to extract. To solve this problem, this paper presents a novel rolling bearing vibration signal fault feature extraction and fault pattern recognition method based on variational mode decomposition (VMD), permutation entropy (PE) and support vector machines (SVM). In the proposed method, the bearing vibration signal is decomposed by VMD, and the intrinsic mode functions (IMFs) are obtained in different scales. Then, the PE valu

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