An exercise for balancing the heat generated in and the cooling capacity of a digitally operated, clutch based, ER variable motion configuration mechanism is highlighted. Both electrical and mechanical loadings are considered in conjunction with the natural cooling from a rotating cylindrical clutch surface, temperature dependant fluid properties and inertial parameters. The methodology developed applies to both ER and MR type fluids and indicates pointers to the future development of these fluids for high speed machines.
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