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RESEARCH PAPERS

Multibody Approach for Model-Based Fault Detection of a Reel

[+] Author and Article Information
Pasi Korkealaakso

Department of Mechanical Engineering,  Lappeenranta University of Technology, Skinnarilankatu 34, P.O. Box 20, FIN-53851 Lappeenranta, FinlandPasi.Korkealaakso@lut.fi

Asko Rouvinen

Department of Mechanical Engineering,  Lappeenranta University of Technology, Skinnarilankatu 34, P.O. Box 20, FIN-53851 Lappeenranta, FinlandAsko.Rouvinen@lut.fi

Aki Mikkola

Department of Mechanical Engineering,  Lappeenranta University of Technology, Skinnarilankatu 34, P.O. Box 20, FIN-53851 Lappeenranta, FinlandAki.Mikkola@lut.fi

J. Comput. Nonlinear Dynam 1(2), 116-122 (Oct 21, 2005) (7 pages) doi:10.1115/1.2162865 History: Received February 28, 2005; Revised October 21, 2005

In order to improve the recognition of faulty situations, model-based fault detection can be used together with signal processing methods. In this study, faults and abnormalities of a reel are studied by employing the multibody simulation approach. The reel under consideration consists of a number of subsystems, including hydraulics, electrical drives, and mechanical parts. These subsystems are coupled by joints, friction forces, and contact forces. Using the multibody simulation approach, the complete model of the reel can be obtained by coupling different subsystems together. Three well-known multibody formulations, a method of Lagrange multipliers, an Augmented Lagrangian method, and a method based on projection matrix R, are briefly described and compared in order to find out the most efficient method for simulating the studied reel. Although this study is focused on the simulation of fault scenarios, the introduced multibody simulation approach can be utilized in real-time simulation. This makes it possible to apply the model to an existing reel.

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Copyright © 2006 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Main parts of the reel mechanism

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Figure 2

Topology chart of the reel mechanism

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Figure 3

Friction coefficient as a function of velocity

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Figure 4

The principle of the hydraulic circuit used to control the nip load

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Figure 5

Velocity of sledge A using different formulations

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Figure 6

Nip load when increased friction applied to rails of carriage A

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Figure 7

Force of cylinder A and pressure of chamber A in cylinder A during transfer sequence

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Figure 8

Contact forces of secondary and guide arms at side A during transfer sequence

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