eng Science and Education Publishing American Journal of Industrial Engineering 2377-4339 2019-12-22 6 1 19 25 10.12691/ajie-6-1-3 AJIE2019613 article Ahmed A. Ibraheem Ahmed.naem0@gmail.com 1 Nouby M. Ghazaly 2 G. T. Abd el- Jaber 2 Mechanical Engineering Department, General Petroleum Company GPC, Cairo, Egypt Mechanical Engineering Department, South Valley University, Qena, Egypt This paper reviews the history of rotor balancing researches and techniques to avoid balancing problem and its consequences. The discussion in site and factory methods includes influence coefficient, conventional software, no phase and frequency response methods to balance rotors. The survey present theory used in computational algorithms related to Eigensystem realization algorithm (ERA) and its application to develop FRF. http://pubs.sciepub.com/ajie/6/1/3/ajie-6-1-3.pdf balancing single plan balancing four run methods frequency response function self-balancing systems