Modelling of Thermometallurgical Process in A Runout Table, Part 1: A Bond Graph Approach

摘要

AbstractA bond graph model of thermometallurgical process in a moving continuum like the runout table cooling is developed in a two-part article. Detailed heat transfer process involving jet impingement, two-phase film boiling, and radiation is considered in these works. Scheil's additivity rule for incubation process and Johnson-MehlAvrami phase kinetics for transformation are used to model the process involving material transport and temperature variation. Two types of steel are considered to demonstrate the working of the model for decomposition of austenite to pearlite and the same to ferrite-pearlite. Part 1 is devoted to the creation and fusion of the thermal, incubation, and phase kinetics modules. Part 2 presents simulation and parametric studies.Key Words: Bond graph modellingrunout table coolingmetallurgical phase transformation Additional informationNotes on contributorsS.K. PalSurjya Kanta Pal received his B.E. (Government Eng. College, Jalpaiguri, India), M.Tech. (Indian Institute of Technology, Kanpur, India), and Ph.D. (Indian Institute of Technology, Kharagpur, India) in mechanical engineering in 1991, 1993, and 1999, respectively. He has worked in the Engineering and Development division of Grasim Industries Limited (India) for a short period after obtaining his M.Tech doctoral. Dr. Pal is currently doing Postdoctoral research at The University of Sheffield, U.K. His research interests include bond graph simulation, finite element modelling, and qualitative analysis of manufacturing processes.A. MukherjeeAmalendu Mukherjee received his B.E. degree from Jhodhpur University, Rajasthan, India, in 1967. He obtained his M.Tech. and Ph.D. degrees from the Indian Institute of Technology, Kharagpur, India in 1969 and 1976, respectively. Professor Mukherjee was awarded the Alexander von Humboldt scholarship during 1980-81 at the University of Clausthal-Zellerfeld, West Germany. In 1970, he joined I.I.T Kharagpur as a Lecturer in the Department of Mechanical Engineering, and in 1985 he was promoted to Professor. His research activities are in rotor dynamics, robotics, stochastical mechanics, random vibration, bond graph modelling, and advanced control systems. Professor Mukherjee was elected as Fellow of the Indian National Academy of Engineers in 1999 for his contribution to academic research and industrial applications. He was the main architect for the creation of the bond graph software Continuous System Modeller (COSMO) at I.I.T. Kharagpur. Another powerful software package, SYMBOLS-2000, was created under his supervision. Due to his efforts, bond graphs have found their way into large number of Indian industries and academic institutions.R. KarmakarRanjit Karmakar obtained his B. Tech. (Hons.) and Ph.D. degrees from the Indian Institute of Technology, Kharagpur in 1968 and 1979, respectively. He joined the faculty of I.I.T. Kharagpur in 1968 and is presently a Professor in the Department of Mechanical Engineering. Earlier in his academic career he worked in the area of st ability, vibration, and minimum-weight design of integrally stiff-Prom 1985 he began to focus on bond graph modelling of physical system dynamics and simulation. Professor Karmakar used bond graphs in directional stability of vehicle trailer systems, squeeze film damper in rotating shaft on hydrodynamic bearings trajectory, and force control in robotic manipulators and thermometallurgical process. His current interest is in modelling of railway vehicle systems.