Principal Investigator

Dr. Tran Xuan Bo
Hanoi University of Science and Technology (HUST), Vietnam

ASEAN Co-Investigator


Japanese Co-Investigator

Prof. Dr. Hideki YANADA
Toyohashi University of Technology

Awarded year



Collaborative Research Program for Alumni (CRA)


Mechanical and Manufacturing Engineering


Friction plays an important aspect in many control systems including fluid power systems. Friction is highly nonlinear and may lead to control errors, limit cycles, undesired stick-slip motion and poor performance of a fluid power system. It is, therefore, necessary to have a full understanding about the behaviors of friction of a fluid power actuator and to find their accurate mathematical friction model to analyze the performance of or to predict the behaviors of a fluid power system. The dynamic friction behaviors of fluid power actuators have been investigated but not fully done and a comprehensive dynamic friction model for a fluid power actuator is lacking. The proposed research focuses on four main objectives: first, to improve the friction model to simulate the dynamic friction behaviors of pneumatic cylinders under the effect of the frequency; second, to experimentally investigate the dynamic friction behaviors of fluid power actuators (especially, pneumatic cylinder) in the pre-sliding regime; third, to develop a comprehensive friction model by taking the dynamic friction behaviors observed in the pre-sliding regime into account; fourth, to apply the friction model to improve the simulation accuracy of the motions of fluid power systems.

Project at glance