Neural Network Emulation of Inverse Dynamics for a Magnetorheological Damper
Publication: Journal of Structural Engineering
Volume 128, Issue 2
Abstract
The dynamic behavior of a magnetorheological (MR) damper is well portrayed using a Bouc–Wen hysteresis model. This model estimates damper forces based on the inputs of displacement, velocity, and voltage. In some control applications, it is necessary to command the damper so that it produces desirable control forces calculated based on some optimal control algorithms. In such cases, it is beneficial to develop an inverse dynamic model that estimates the required voltage to be input to the damper so that a desirable damper force can be produced. In this study, we explore such a possibility via the neural network (NN) technique. Recurrent NN models will be constructed to emulate the inverse dynamics of the MR damper. To illustrate the use of these NN models, two control applications will be studied: one is the optimal prediction control of a single-degree-of-freedom system and the other is the linear quadratic regulator control of a multiple-degree-of-freedom system. Numerical results indicate that, using the recurrent NN models, the MR damper force can be commanded to follow closely the desirable optimal control force.
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References
Chang, C. C., and Roschke, P.(1998). “Neural network modeling of a magnetorelogical damper.” J. Intell. Mater. Syst. Struct., 9, 755–764.
Cybenko, G.(1989). “Approximation by superpositions of a sigmoidal function.” Mathematics Control, Signals, Systems, 2, 303–314.
Dowdell, D. J., and Cherry, S. (1994). “Structural control using semiactive friction dampers.” Proc., 1st World Conf. on Structural Control, Los Angeles. FA1-59–FA1-68.
Dyke, S. J., Spencer, Jr., B. F., Sain, M. K., and Carlson, J. D.(1996). “Modeling and control of magnetorheological dampers for seismic response reduction.” Smart Mater. Struct., 5, 565–575.
Dyke, S. J., Spencer, Jr., B. F., Sain, M. K., and Carlson, J. D.(1998). “Experimental study of MR dampers for seismic protection.” Smart Mater. Struct., 7(5), 693–703.
Hansen, B. C., Gordaninejad, F., Saiidi, M., and Chang, F. K. (1997). “Control of bridges using magneto-rheological fluid dampers.” Structural Health Monitoring, Fu-Kuo Chang, ed., Technomic, 81–90.
Hidaka, S., Ahn, Y. K., and Morishita, S.(1999). “Adaptive vibration control by a variable-damping dynamic absorber using ER fluid.” J. Vibr. Acoust., 121(3), 373–378.
Hoshiya, M., and Saito, Y.(1995). “Prediction control of SDOF system.” J. Eng. Mech., 121(10), 1049–1055.
Lewis, F. L., and Syrmos, V. L. (1995). Optimal control, 2nd Ed., Wiley, New York.
Ljung, L. (1999). System identification—theory for the user, Prentice-Hall, Upper Saddle River, N.J.
Narendra, K., and Parthasarathy, K.(1990). “Identification and control of dynamical systems using neural networks.” IEEE Trans. Neural Netw., 1, 4–27.
Nørgaard, M. (1995). Neural Network Based System Identification Toolbox. Tech. Rep. 95-E-773, Dept. of Automation, Technical Univ. of Denmark.
Patten, W. N., Kuo, C. C., He, Q., Liu, L., and Sack, R. L. (1994). “Seismic structural control via hydraulic semi-active vibration dampers (SAVD).” Proc., 1st World Conf. on Structural Control, Los Angeles. FA2-83–FA2-89.
Sadek, F., and Mohtaz, B.(1998). “Semiactive control algorithms for structures with variable dampers.” J. Eng. Mech., 124(9), 981–990.
Soong, T. T. (1990). Active structural control: theory and practice, Wiley New York.
Spencer, B. F., Jr. (1986). Reliability of randomly excited hysteretic structures, Springer, New York.
Spencer, B. F., Jr., Carlson, J. D., Sain, M. K., and Yang, G. (1997a). “On the current status of magnetorelogical dampers: seismic protection of full-scale structures.” Proc., 1997 American Control Conf., IEEE, Piscataway, N.J., 458–462.
Spencer, B. F., Jr., Dyke, S. J., Sain, M. K., and Carlson, J. D.(1997b). “Phenomenological model for magnetorelogical dampers.” J. Eng. Mech., 123(3), 230–238.
Symans, M. D., and Constantinou, M. C.(1997). “Seismic testing of a building structure with a semi-active fluid damper control system.” Int. J. Soil Dyn. Earthquake Eng., 26(7), 759–777.
Yang, J. N., Akbarpour, A., and Ghaemmaghami, P.(1987). “New optimal control algorithms for structural control.” J. Eng. Mech., 113(9), 1369–1386.
Yang, J. N., Li, Z., and Vongchavalitkul, S. (1992). “A generalization of optimal control theory: Linear and nonlinear structures.” Rep. No. NCEER-92-0026, State Univ. of New York at Buffalo, Buffalo, N.Y.
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Published In
Journal of Structural Engineering
Volume 128 • Issue 2 • February 2002
Pages: 231 - 239
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Feb 15, 2000
Accepted: Aug 1, 2001
Published online: Feb 1, 2002
Published in print: Feb 2002
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