Experimental study of friction in hydraulic actuators with sealless pistons

Meikandan, N.; Raman, R.; Singaperumal, M.

doi:10.1016/0043-1648(94)90206-2

Cited by 11 publications

(6 citation statements)

References 1 publication

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“…Meikandan et al [7] confirmed their theoretical work with experiments. The diverging piston had high friction values at low velocities, corresponding to the negative centering force causing piston contact with the cylinder wall.…”

Section: Friction Avoidancementioning

confidence: 67%

“…Friction avoidance using tapered and sealless pistons has also been employed [7,31]. This approach reduced the friction significantly but required a high hydraulic fluid flow rate.…”

Section: Discussionmentioning

confidence: 99%

“…As the component starts to move the friction suddenly decreases as it switches to the dynamic friction regime. This sudden change in friction results in a jerky actuator motion, making positional control and repeatability difficult [2,3,5,6,7,8]. This effect is commonly referred to as stick-slip friction.…”

Section: Preliminary Remarksmentioning

confidence: 99%

“…Friction avoidance is the design of machines such that friction is reduced or avoided. Meikandan et al [7,31] looked at sealless, tapered pistons where they found that the friction would be Their initial studies were theoretical [31]. The friction in the converging-diverging piston was calculated to be one-fifth of a similar conventional piston with seals.…”

Section: Friction Avoidancementioning

confidence: 99%

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The reduction of stick-slip friction in hydraulic actuators

Owen

Croft

2003

IEEE/ASME Trans. Mechatron.

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In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission.

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Section: Friction Avoidancementioning

confidence: 67%

“…Friction avoidance using tapered and sealless pistons has also been employed [7,31]. This approach reduced the friction significantly but required a high hydraulic fluid flow rate.…”

Section: Discussionmentioning

confidence: 99%

Section: Preliminary Remarksmentioning

confidence: 99%

Section: Friction Avoidancementioning

confidence: 99%

See 2 more Smart Citations

The reduction of stick-slip friction in hydraulic actuators

Owen

Croft

2003

IEEE/ASME Trans. Mechatron.

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“…They established the mathematical models for instantaneous pressure and got the simulation results that distribution overlap of motors must be strictly controlled. Meikandan et al (1990Meikandan et al ( , 1994 analyzed the effects of the tapered piston as well as the friction between piston and cylinder bore on the volumetric efficiency and torque characteristic of HAPM. Sadashivappa et al (1996) investigated theoretically and experimentally the effects of piston-form deviations on the mechanical and volumetric efficiency of HAPM, through considering the viscous friction and the piston profiles.…”

mentioning

confidence: 99%