METHOD OF DETERMINING DISSIPATIVE CHARACTERISTICS OF FRICTION COUPLES Russian patent published in 2011 - IPC G01N19/02 

FIELD: physics.

SUBSTANCE: method of determining dissipative characteristics of friction couples involves loading a friction couple with an external radial force F, rotation of the movable element of the friction couple using a dc motor with constant angular velocity Ω, measuring voltage U and current I in the armature winding of the motor, repeating measurement of voltage U₀ and current I₀ in the armature winding of the motor during rotation of the movable element of the friction couple without an external loading force, repeating measurement at different values of velocity Ω and calculating the coefficient of friction and equivalent dissipative coefficient using the following formulae, respectively: where R is the rotating friction surface; r is active resistance of the armature winding of the drive motor.

EFFECT: easy implementation and broader functionalities of determining coefficient of friction and equivalent dissipative coefficient of friction couples due to use of a drive motor when measuring variables.

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