Analytical and Numerical Approaches to Predict the Flow Characteristics of a Magnetorheological Fluid in Rotational Symmetric Cross Sections

Abstract:

For a better understanding of the hydroforming process using magnetorheological fluids as a medium it is necessary to gain basic information for an analytical and numerical description of the fluid behaviour under process relevant conditions. Therefore an experimental setup is build up, which consists of a pressure chamber and a rotational symmetric outlet. Different parameters like feed rate and magnetic flux density are varied. Afterwards an analytical approach and a numerical model are developed. To get the relevant material input data for the fluid description an additional numerical simulation of the created magnetic flux density with flux lines perpendicular to the symmetry line of the outlet is performed. The leakage rates, which are observed for the experiments, are compared to the analytically calculated ones and to the results of the numerical simulation.

• Periodical: Key Engineering Materials (Volumes 504-506)
• Pages: 399-404
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.504-506.399
• Online since: February 2012
• Authors: Sebastian Rösel, Marion Merklein, Martin Grüner
• Keywords: Magnetorheological Fluid (MRF), Sheet Hydroforming, Sheet Metal, System Technology

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