Study on the lubrication performance of the pitcher plant–like textured surface with various parameters

Abstract

Purpose This paper aims to enhance lubrication performance of the pitcher plant–like textured surface with various parameters. Design/methodology/approach A pitcher plant–like structure surface is fabricated on the copper alloy, and the lubrication performance of the pitcher plant–like structure with various parameters is evaluated. In addition, the pressure distribution and oil film load capacity of the pitcher plant–like surface are simulated based on Navier–Stokes equations. Findings When the direction of motion aligns with the pitcher plant–like structure, the friction coefficient remains lower than that of the nontextured surface, and it exhibits a decreasing trend with the increasing of the texture width and spacing distance; the lowest friction coefficient (0.04) is achieved with B = 0.3 mm, L = 1.0 mm and θ = 45°, marking a 75% reduction compared to the nontextured surface. Simulation results demonstrate that with the increase in texture width and spacing distance, the oil film load-bearing capacity demonstrates an increasing trend. Originality/value Bionic pitcher plants are prepared on the copper alloy to improve the lubrication performance and wear resistance. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-04-2024-0119/