{"title":"Vibration Base Identification of Impact Force Using Genetic Algorithm","authors":"R. Hashemi, M.H.Kargarnovin","volume":12,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":132,"pagesEnd":139,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/5160","abstract":"This paper presents the identification of the impact\r\nforce acting on a simply supported beam. The force identification is\r\nan inverse problem in which the measured response of the structure is\r\nused to determine the applied force. The identification problem is\r\nformulated as an optimization problem and the genetic algorithm is\r\nutilized to solve the optimization problem. The objective function is\r\ncalculated on the difference between analytical and measured\r\nresponses and the decision variables are the location and magnitude\r\nof the applied force. The results from simulation show the\r\neffectiveness of the approach and its robustness vs. the measurement\r\nnoise and sensor location.","references":"[1] K. K. Stevens, \"Force identification problems (an\r\noverview)\", Proc. of the SEM Conf. on Experimental\r\nMechanics, pp. 838-844. Houston, TX, June, 1987.\r\n[2] T.H.T. Chan, L.Yu, S.S. Law and T.H. Yung,\r\n\"Moving force identification studies, I: theory\", J. of\r\nSound and Vib., vol. 247, pp. 59-76, 2001.\r\n[3] T.H.T. Chan, L. Yu, S.S. Law and T.H.Yung,\r\n\"Moving force identification studies, II: comparative\r\nstudies\", J. of Sound and Vibration; vol.247, pp.. 77-\r\n95, 2001.\r\n[4] X.Q. Zhu, S.S. Law, \"Moving load identification on\r\nmulti-span continuous bridges with elastic bearings\",\r\nMechanical Systems and Signal Processing, vol. 20,\r\npp. 1759-1782, 2006.\r\n[5] O. Iohn Callahan, F. Piergenitili, \"Force estimation\r\nusing operational data\", Proc. of 8th International\r\nModal analysis Conf., pp. 1586-1592, 1994.\r\n[6] E. Parloo, P. Verboven, P. Guillaume, Van Overmeire\r\nM., \"Force Identification by Means of operation\r\nModal Models\", Proc. of the 20th International Modal\r\nAnalysis Conf., Los Angeles, California, 2002.\r\n[7] B. T. Wang, C.H. Chiu, \"Determination of unknown\r\nimpact force acting on a simply supported beam\",\r\nMechanical System and Signal Processing, vol. 17,\r\npp. 683-704, 2003.\r\n[8] B. T. Wang, C. H. Chiu,\"Prediction of Harmonic\r\nforce acting on cantilever beam\", Proc. of 21st\r\nInternational Modal analysis Conf., pp. 1230-1241.\r\n2004.\r\n[9] A.N. Thite, D.J. Thompson, \"Selection of response\r\nmeasurement locations to improve inverse force\r\ndetermination\", Applied Acoustics, vol. 67, pp. 797-\r\n818, 2006.\r\n[10] J. Zhu, Z. Lu, \"A time domain method for identifying\r\ndynamic loads on continuous systems\", J. of Sound\r\nand Vib., vol. 148, pp. 137-146, 1991.\r\n[11] J. E. R. Flores, F. A. C. Viana, D. A. Rade, V. S. Jr,\r\n\"Identification of external forces in mechanical\r\nsystems by using LifeCycle model and stressstiffening\r\neffect\", Mechanical Systems and Signal\r\nProcessing, vol. 21, pp. 2900-2917, 2007.\r\n[12] T. Obata, Y. Miyamori, \"Identification of a human\r\nwalking force model based on dynamic monitoring\r\ndata from pedestrian bridges\", Computers and\r\nStructures, vol. 84, pp. 541-548, 2006.\r\n[13] J. H. Holland, \"Adaptation in natural and artificial\r\nsystem\", University of Michigan Press, Ann Arbor,\r\nMI, 1975.\r\n[14] Z. Michalewicz, \"Genetic Algorithm+Data\r\nStructures=Evolution Programs\", Springer-Verlag, AI\r\nSeries, New York, 1992.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 12, 2007"}