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Research articles

ScienceAsia 38 (2012): 386-393 |doi: 10.2306/scienceasia1513-1874.2012.38.386


A novel approach to model magneto-rheological dampers using EHM with a feed-forward neural network


Kittipong Ekkachaia,*, Kanokvate Tungpimolrutb, Itthisek Nilkhamhanga

 
ABSTRACT:     This paper proposes a novel method for modelling magneto-rheological (MR) dampers. It uses an elementary hysteresis model (EHM) with a feed-forward neural network (FNN) to capture hysteresis characteristics of an MR damper, and another FNN to determine the current gain. These parts can be trained separately, thus reducing the size of the training dataset. The inputs of the proposed model include velocity, acceleration, and current to estimate the generated damping force. Unlike previous FNN models, this model does not require force sensor inputs. Simulation results show the high performance of the proposed EHM-based FNN when compared to conventional methods such as a recurrent neural network.

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a Sirindhorn International Institute of Technology, Thammasat University, Thailand
b National Electronics and Computer Technology Centre, Thailand

* Corresponding author, E-mail: kittipong.ekkachai@gmail.com

Received 20 Jun 2012, Accepted 25 Sep 2012