Derivation of nonlinear dynamic model of novel pneumatic artificial muscle manipulator with a magnetorheological brake

An artificial rubber muscle was used as an actuator in the present study because it was safe for the muscle manipulator to come into contact with the human body. However, this actuator vibrates and can cause late responses because of the air pressure that is applied to the manipulation. We have built a magnetorheological (MR) brake that uses MR fluid with fast response into the joint to control the vibration. In this paper, we have described the manipulator's dynamic characteristics by construction of a model for improvement of the control performance of the MR brake. Furthermore, a simulation was performed using the model and efficient braking by the MR brake was achieved.

[1]  Taro Nakamura,et al.  Derivation of a mathematical model for pneumatic artificial muscles , 2006 .

[2]  Blake Hannaford,et al.  McKibben artificial muscles: pneumatic actuators with biomechanical intelligence , 1999, 1999 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (Cat. No.99TH8399).

[3]  Bram Vanderborght,et al.  Second generation pleated pneumatic artificial muscle and its robotic applications , 2006, Adv. Robotics.

[4]  H. M. Kim,et al.  Core-shell typed polymer coated-carbonyl iron suspensions and their magnetorheology , 2009 .

[5]  Yongbo Yang,et al.  Static yield stress of ferrofluid-based magnetorheological fluids , 2009 .

[6]  Seung-Bok Choi,et al.  Vibration control of flexible structures using MR and piezoceramic mounts , 2004, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[7]  Toshihiko Shiraishi,et al.  549 Modeling of MR Devices Using Measured Typical Characteristics of MR Fluids , 2004 .

[8]  Sungchul Kang,et al.  Design and Vibration Control of Safe Robot Arm with MR-Based Passive Compliant Joint , 2008 .

[9]  Thananchai Leephakpreeda,et al.  Study on mechanical behaviors of pneumatic artificial muscle , 2010 .

[10]  M. M. Gavrilović,et al.  Positional servo-mechanism activated by artificial muscles , 2006, Medical and biological engineering.

[11]  Taro Nakamura,et al.  Orbit Tracking Control of 6-DOF Lubber Artificial Muscle Manipulator Considering Nonlinear Dynamics Model , 2011 .

[12]  Doyoung Jeon,et al.  A Study on the Vibration Attenuation of a Driver Seat Using an MR Fluid Damper , 2002 .

[13]  Yasunao Okazaki,et al.  Development of a Human Safe, Multi-Degree-of-Freedom Robot Arm Technology using Pneumatic Muscles , 2010 .

[14]  Changsheng Zhu,et al.  A disk-type magneto-rheological fluid damper for rotor system vibration control , 2005 .

[15]  Kosuke Nagaya,et al.  Vibration suppression of plate using linear MR fluid passive damper , 2004 .

[16]  Ching-Ping Chou,et al.  Static and dynamic characteristics of McKibben pneumatic artificial muscles , 1994, Proceedings of the 1994 IEEE International Conference on Robotics and Automation.

[17]  Yoshiyuki Sankai,et al.  Transferring-Care Assistance with Robot Suit HAL , 2010 .

[18]  V. L. Nickel,et al.  DEVELOPMENT OF USEFUL FUNCTION IN THE SEVERELY PARALYZED HAND. , 1963, The Journal of bone and joint surgery. American volume.

[19]  Taro Nakamura,et al.  Experimental comparisons between McKibben type artificial muscles and straight fibers type artificial muscles , 2006, SPIE Micro + Nano Materials, Devices, and Applications.