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物理学报. 2008, 57(4): 2358-2362.
doi: 10.7498/aps.57.2358.
界面摩擦过程非连续能量耗散机理研究
- 收稿日期: 2007-07-05
- 修回日期: 2007-09-13
- 刊出日期: 2008-04-25
English Abstract
Study on discontinucous energy dissipation mechanism of friction
- Received Date:
05 July 2007
- Accepted Date:
13 September 2007
- Published Online:
25 April 2008
Abstract: Based on the composite oscillator model of atomic-scale wearless friction, a quantum mechanics model is proposed for analyzing the energy dissipation. The analysis indicates that the energy dissipation is discontinuous in a sliding process. The energy absorbing ability of an atom on a contact surface is discrete when the atom jumps from one equilibrium state to another. At the same time, the ability of a contact surface atom to absorbe the interfacial potential energy is stronger in a high energy state than in a low energy state. This will provide the theoretical basis for analyzing the periodical change in friction.
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