Evaluation of Varies Model Order in GA-Optimized Parameter Estimation of Toothbrush Rig System

  • H. M. Y. Ainul Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
  • S. Mahzan Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
  • S. Ahmad Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
  • H. Taib Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
  • H. A. Rahman Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
  • A. Ismail Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
  • A. Ismail Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
  • S. M. Saleh Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia
Keywords: Modeling, system identification, optimization method, validation

Abstract

Parameter estimation is a vital part in constructing the best model of a dynamic system. This paper analyzed the performance of toothbrush rig parameter estimation using different model orders. Parameter estimation process of the system is performed through system identification. The approximate mathematical model that resemble the real system is obtained when the output is measured after loading the input signal. The application of real-coded genetic algorithm (RCGA) is proposed as optimization method in estimating the parameters of dynamic system. The best model is obtained by optimizing the objective function of mean squared errors. The performance is analyzed to get the approximate model of the real system using three different model orders with 10 times analysis for each model. A few criteria have been considered which are the optimization result of objective function, time execution and validation process. Real- coded genetic algorithm indicates that parameter estimation with model order 3 is chosen as the best model or the dynamic system as it has the highest performance compared to others.

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Published
06-09-2019
How to Cite
Ainul, H. M. Y., Mahzan, S., Ahmad, S., Taib, H., Rahman, H. A., Ismail, A., Ismail, A., & Saleh, S. M. (2019). Evaluation of Varies Model Order in GA-Optimized Parameter Estimation of Toothbrush Rig System. International Journal of Integrated Engineering, 11(5), 42-50. Retrieved from https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/3707