Development of a New Experimental Web Tension Control System

Giannoccaro, Nicola Ivan; Sakamoto, Tetsuzo

doi:10.2507/daaam.scibook.2008.26

Cited by 5 publications

(19 citation statements)

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“…The closed loop transfer matrix Tzw of this control scheme is given by (9) where S = (I+GK) -1 is the sensitivity function and T=(I-S) is the complementary sensitivity function.…”

Section: Decentralized Robust Controller Designmentioning

confidence: 99%

“…The first experimental tests with the new system [8][9] were characterized by a web tension longitudinal speed of about 0.3-0.4 m/s that is quite a low transfer speed for the systems used in industrial applications. Currently the system has been considerably changed by means of some improvements applied to the mechanical part and electrical part of the web system [11].…”

Section: Description Of the Realized Web Handling Systemmentioning

confidence: 99%

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Decentralized Control Performances of an Experimental Web Handling System

Giannoccaro

Nishida

Sakamoto

2012

International Journal of Advanced Robotic Systems

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Robust and good tracking control of the speed and the tension in web handling systems in spite of changes of set point is surely one of the important challenges in the web transport systems future development. In this paper, the authors experimentally demonstrate the real applicability of a decentralized robust control to a multi-span web transport system, which is composed of twelve guide rollers, four main sections mutually interconnected with each other. The overlapping methodology has been applied for the system decomposition.The experimental results carried out using the robust decentralized control show an excellent velocity and tension tracking in each controlled section of the system.

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“…The closed loop transfer matrix Tzw of this control scheme is given by (9) where S = (I+GK) -1 is the sensitivity function and T=(I-S) is the complementary sensitivity function.…”

Section: Decentralized Robust Controller Designmentioning

confidence: 99%

Section: Description Of the Realized Web Handling Systemmentioning

confidence: 99%

Decentralized Control Performances of an Experimental Web Handling System

Giannoccaro

Nishida

Sakamoto

2012

International Journal of Advanced Robotic Systems

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“…To this end, in this paper the authors have studied the lumped model referred to a new experimental system [9][10] made up of four sections (an unwinder section, a leading section, a draw-roll section and a winder section) each driven by one servomotor [9][10]. In [9] the preliminary experimental system set-up was shown, while in [10] the system model validation was manually and iteratively carried out by comparing the block model behaviour (Laplace domain) with the experimental data.…”

mentioning

confidence: 99%

“…In [9] the preliminary experimental system set-up was shown, while in [10] the system model validation was manually and iteratively carried out by comparing the block model behaviour (Laplace domain) with the experimental data. No alternatives were given to an iterative validation procedure because the block model was developed only in the Laplace domain.…”

mentioning

confidence: 99%

Updating of an experimental web tension control system model using a multivariable optimization method

Giannoccaro

Messina

Sakamoto

2008

2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion

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The modelling and the control of the web handling systems have been studied for a long time; the correct modelling is necessary in order to design a better control system or to experimentally identify the plant parameters. On the web dynamics itself, lumped parametric expressions may be used to designate a web section between two adjacent drive rolls, and there is the necessity to incorporate the property of visco-elasticity to the web. In this paper the lumped model of a new web tension experimental system is updated; the model is based on the conservation of mass, torque balance and viscoelasticity (Voigt approach). The experimental system consists of four sections, each of which is driven by a servomotor with the speed and tension feedback, by using encoders and tension sensors. Usually these kinds of models are developed in the Laplace domain and the block scheme gives a graphic interpretation of the interaction between different sections. The block scheme transformation in a differential equation system in the time domain is considered in this paper; it requires the introduction of nonzero initial condition for the derivative of physical variables. The problem of validation has been dealt with in detail in this paper, simultaneously considering 2 different combinations of input data in open loop and a multivariable optimization method in order to estimate the unknown parameters. The results will show the accuracy of this kind of lumped parameters model for the complex experimental systems and useful information for successively designing an efficient control strategy.

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“…In the same year, Marynowski [6] built the elastic and viscoelastic model of viscoelastic cylinder material with axial movement speed by using the 2D-rheology theory. Giannoccaro [7] established a tension control simulation system of the web-fed press and performed simulation experiments. A new shell element has been proposed for geometrically…”

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confidence: 99%

Parameter Vibration and Dynamic Stability of the Printing Paper Web with Variable Speed

et al. 2010

Journal of Low Frequency Noise, Vibration and Active Control

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Parametric vibration and dynamic stability of the printing paper web with variable speed were studied. The speed of the moving paper web was regarded as the sum of the constant mean speed and the sine pulse speed. The dynamical model and the transverse vibration differential equation were established. The period coefficient state equation was obtained by discretizing the space variable of the differential equation with the differential quadrature method and imported state vector. The instability region and the stability region of the paper web were determined by the implicit Runge-Kutta method. The relationships of the instability region versus the tension ratio, length-width ratio and the amplitude of the sine pulse speed were analyzed. The results provide a theoretical basis for optimizing the structure of the printing machine and improving the working stability of the paper web.Key words: the moving paper web with variable speed; parameter vibration; differential quadrature method; stability INTRODUCTIONThe printing speed and the production efficiency of web fed printing and gravure presses is becoming faster and higher. It is now being used in volume-production of newspapers, books and packing materials. The transverse vibration along the vertical direction of the tensioned paper web is caused by the eccentricity of the scroll in the printing process. The transverse vibration could affect the paper web's working stability, and thus influence the product quality seriously in paper-making, printing and the packing industry, Furthermore, the improvement of the working speed is restricted. So research into the transverse vibration and stability of moving paper web or membrane is of great important application value, and numerous workers have paid close attention to it.In 2002, Wu [1] studied axisymmetric transversal intrinsic vibrations of annular membranes of varying density with an amended perturbation method and obtained the characteristic equations which determine the transversal intrinsic vibration frequencies. In 2004, Wu [2][3] presented the characteristic equations of transverse intrinsic vibrations of membranes without axial movement in rigid middle supports. The transverse vibration and stability of axial moving membrane were studied by Hou [4]. He focused on the dynamic properties and stability of the membrane at constant speed vs. the length-width ratio and the tension ratio on the border of a rectangular membrane. In 2006, Shina [5] studied the dynamic characteristics of a homogeneous membrane with constant moving speed and obtained the differential equations by using an extended Hamilton principle. In the same year, Marynowski [6] built the elastic and viscoelastic model of viscoelastic cylinder material with axial movement speed by using the 2D-rheology theory. Giannoccaro [7] established a tension control simulation system of the web-fed press and performed simulation experiments. A new shell element has been proposed for geometrically

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Development of a New Experimental Web Tension Control System

Cited by 5 publications

References 0 publications

Decentralized Control Performances of an Experimental Web Handling System

Decentralized Control Performances of an Experimental Web Handling System

Updating of an experimental web tension control system model using a multivariable optimization method

Parameter Vibration and Dynamic Stability of the Printing Paper Web with Variable Speed

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