Dynamic modeling and performance of a high-speed electrorheological traversing mechanism

Andrew R. Johnson; William A. Bullough; John Makin; Richard C. Tozer

doi:10.1117/12.275675

6 June 1997 Dynamic modeling and performance of a high-speed electrorheological traversing mechanism

Andrew R. Johnson, William A. Bullough, John Makin, Richard C. Tozer

Proceedings Volume 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems; (1997) https://doi.org/10.1117/12.275675
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

A high speed traversing mechanism which utilizes two electro- rheological clutches is described. The traversing mechanism can be used to wind filaments onto bobbins. The traverse speed is 5 m/s, the required turn round period is 10 milliseconds, the traverse length is 250 mm and the turn round position must be electronically controllable and repeatable within plus or minus 1 mm. These combined criteria of high speed and controllability makes the use of electro-rheological fluids an attractive proposition. The dynamic model used to predict the performance of the mechanism is outlined and theoretical performance predictions made for a variety of electro- rheological fluid characteristics. Supporting experimental data is used to illustrate the validity of the dynamic modeling. The effect of various fundamental electro- rheological fluid characteristics, such as electro-shear stress, time delays and viscosity are considered in relation to the requirements for the operation of the high speed mechanism. This study indicates important areas for consideration in the future development of electro-rheological fluids.

Citation Download Citation

Andrew R. Johnson, William A. Bullough, John Makin, and Richard C. Tozer "Dynamic modeling and performance of a high-speed electrorheological traversing mechanism", Proc. SPIE 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems, (6 June 1997); https://doi.org/10.1117/12.275675

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