Design of Normal Force Control System for a Pin-on-Disk Tribometer including Active and Passive Suppression of Vertical Vibrations
Automatika , Vol. 54, No. 3, pp. 364-3752013This paper presents the design of a computer-controlled pin-on-disk tribometer for friction characterization of various friction sliding pairs. The tribometer setup comprises two high-bandwidth servomotors for the control of the rotating disk and the normal load-related spindle drive, as well as a high-precision tri-axial piezoelectric force sensor for normal and tangential forces measurement. Since the spindle drive system is characterized by notable compliance effects, the normal force cascade control system is designed with the aim of vertical vibrations active damping. In order to compensate for the unevenness of the rotating disk surface and associated high-level perturbations in the specimen normal force, the normal force control system is extended with a feedforward compensator of the disk unevenness disturbance, and a dedicated leaf spring suspension system is designed. The effectiveness of the proposed system of vertical vibrations damping is verified experimentally. vibration suppression; normal force control; pin-on-disk tribometer
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Automatika , Vol. 54, No. 3, pp. 364-375
2013
Cited by 8
▾
-
[1] A retrofitting control system design suitable for deep borehole drilling using legacy draw-works mechanical brake hardware🔗Energy Conversion and Management, 2022
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[2] Design of a Disc-on-disc-type CNC Tribometer Targeted at Dry Clutch Friction Plate Wear Characterization🔗International journal of automotive technology, 2022
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[7] Iterative learning control of a long range tribometer under repetitive perturbation and friction🔗European Control Conference, 2015