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- W3003120034 abstract "- Internal gear pumps (IGPs) are commonly applied in biped robots’ hydraulic actuation systems serving as the power unit. The pump’s outlet pressure ripple does harm to accurate motion controls and is usually lowered by adopting an accumulator. This paper investigates the effects of the varying lateral clearances between the gear and the floating plate on the pressure ripple. It aims to provide advices on manufacturing the gears to lower the pump’s outlet pressure ripple so that the accumulator could be smaller, which is of great importance to weight and space saving in biped robots’ design. A mathematical model was established for evaluating the outlet pressure considering the lateral clearances’ varying phenomenon. Moreover, the outlet pressure was measured by high-frequency pressure sensors for verifying the effects of the varying lateral clearances. The simulated and experimental results suggest that the outlet pressure concerning varying lateral clearances has small ripples characterized by high frequency and big ripples characterized by low frequency. Additionally, the pressure ripple, especially the big ripple, can be lowered by well manufacturing the gear pair’s lateral sides, ensuring the consistency of the tooth width of the gear." @default.
- W3003120034 created "2020-01-30" @default.
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- W3003120034 date "2019-12-01" @default.
- W3003120034 modified "2023-09-26" @default.
- W3003120034 title "Effects of the Varying Lateral Clearances on the Pressure Ripple of Internal Gear Pumps in Biped Robots" @default.
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- W3003120034 doi "https://doi.org/10.1109/robio49542.2019.8961578" @default.
- W3003120034 hasPublicationYear "2019" @default.
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