Characterization of the magnetorheological fluid MRF-140 CG for applications in robotic prosthesis

2018 4th International Conference on Smart Material Research

Arteaga, Oscar^1 ; Ortiz, Marcelo^1 ; Cárdenas, Eduardo^1 ; Espin-Lagos, Segundo M.^2 ; Carvajal, Miguel A.^1 ; Terán, Héctor C.^1 ; Lara, Mario A.^1

Universidad de Las Fuerzas Armadas ESPE, Sangolquí, Ecuador^1

Universidad Técnica de Ambato, Ambato, Ecuador^2

关键词: Bingham-plastic models;    Buckley models;    Experimental modeling;    Magneto-rheological fluid;    Mechanical device;    Rheological property;    Rotational rheometer;    Test benches;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/522/1/012006/pdf
DOI  :  10.1088/1757-899X/522/1/012006

来源: IOP

【 摘 要 】

The present article shows the different results of the rheological properties of the magneto-rheological fluid (MRF-140CG; LORD Co. (USA), focused on predicting its behavior in devices that use these materials, to characterize the fluid MRF-140CG several tests were performed using a rotational rheometer Anton Paar Physica MRC-501 equipped with a magnetic rheological cell MRD-70/1Text, according to DIN-53018, the tests were performed with magnetic fields from 0 T to a maximum of 800mT with increments of 200mT and temperatures from 20 to 50°C with increments of 10°C in each test. In addition, in order to determine the dynamic model, a shock absorber designed by the authors was tested in accordance with ISO 2954 standards on the Dyno-Shock 11 test bench. To determine which of the models precisely predicts the behavior of the magnetic rheological fluid, a comparison was made between Experimental model, Bingham plastic model, the Bi-Viscose model and the Herschel-Buckley model. This contributed to the design of increasingly sophisticated, reliable and efficient intelligent mechanical devices according to each need.