Friction pair devices

A friction pair device comprising a friction pair stationary member, a plurality of micro channels, a Tesla valve structure, and a stress application device;

• wherein
• the friction pair stationary member includes a friction pair static surface, the friction pair static surface is provided with a dynamic pressure groove;
• the dynamic pressure groove includes a dynamic pressure groove bottom;
• a surface of the dynamic pressure groove bottom has micro-nano scale gaps, a super-lubricant is disposed within the micro-nano scale gaps, the super-lubricant is injected into the micro-nano scale gaps to form a super-lubricant layer, the super-lubricant layer allows a liquid-film and liquid medium molecules of a super-lubricant layer interface to move freely along the dynamic pressure groove bottom, a slip velocity of the liquid medium molecules approaches a moving velocity of a friction pair dynamic surface, a slip length of the liquid medium molecules approaches positive infinity, and a super slip surface is formed on the dynamic pressure groove bottom of the friction pair static surface;
• the plurality of micro channels are disposed in regions in which at least one of a pressure, a temperature, and a velocity of the liquid film is uniform, the plurality of micro channels are in communication with the dynamic pressure groove bottom, and the super-lubricant enters the dynamic pressure groove bottom through the plurality of micro channels;
• the Tesla valve structure includes a forward Tesla valve and a reverse Tesla valve;
• the forward Tesla valve is configured to enable a flow connection between the plurality of micro channels and an oil reservoir;
• the reverse Tesla valve is configured to enable a flow connection between the dynamic pressure groove bottom and the oil reservoir;
• and
• the stress application device is configured to apply a shear stress to the liquid medium molecules via one or more of a temperature gradient, a magnetic field, or an electric field.