A reciprocating friction power generation output performance and friction coefficient synchronous testing device

Abstract

The invention discloses a device for synchronously testing a reciprocating type friction power generation output property and a friction coefficient. A to-be-tested upper friction pair is arranged atthe front end, which is connected with a cantilever beam, of a cantilever beam supporting rack; a strain gage is arranged on the cantilever beam; a lower friction pair is arranged on a moving block ifa magnetic shaft linear motor and is positioned under the upper friction pair; the lower friction pair which is driven by the magnetic shaft linear motor to linearly move in a reciprocating manner relative to the static upper friction pair; current and voltage signals of friction power generation are output to a control and test computer; and meanwhile, the strain gage synchronously outputs the friction signals of the upper friction pair and the lower friction pair to the control and test computer. Because the control and test computer simultaneously acquires the current and voltage signals generated by friction power generation of the upper friction pair and the lower friction pair and friction signals, synchronous test on the friction power generation output property and the friction coefficient is realized; influence of interface friction behaviors to the friction power generation output property is discovered favorably; and the mechanism of action of the interface friction behaviors to an electric output property is facilitated.

Description

technical field [0001] The invention relates to the field of testing equipment for micro-nano energy and friction and wear, in particular to an experimental device for simultaneously measuring the output performance and friction coefficient of reciprocating friction power generation, which is suitable for the influence of tribological behavior of reciprocating friction power generation on electrical output performance and mechanism studies. Background technique [0002] Triboelectric generation is an energy harvesting technology that utilizes frictional electrification and static inductive coupling effects, and reciprocating frictional power generation is an important form of frictional power generation. [0003] Triboelectric generation involves two aspects: interface friction and electrical output performance. The friction coefficient of the contact interface affects the output performance and energy conversion efficiency of triboelectric power generation. [0004] Howeve...

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Problems solved by technology

[0004] However, so far, it is not clear how the frictional behavior of the contact interface affects the output performance of triboelectric generation, which largely hinders the practical progress of high-efficiency triboelectric generation.

[0005] At present, the traditional experimental device for researching triboelectric power generation cannot measure the interface friction coefficient while measuring the electrical output performance, and the traditional friction and wear experimental device cannot simultaneously measure the electrical output performance while measuring the friction coefficient of the contact interface

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