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Energy-based friction analysis
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DOI：10.1016/j.precisioneng.2018.08.011.png)
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This paper describes a new approach for parameterizing friction models. Velocity measurements of a springmass-damper oscillator with a friction contact are used to determine the Coulomb friction coefficient for the friction-based energy dissipation. The energy-based friction force is then calculated and compared to the friction force determined from the product of the friction coefficient and normal force. The friction measuring machine, or FMM, is used to enable transient, linear sliding motion between friction contact pairs under constant normal force loading and a laser vibrometer is used to measure the corresponding time dependent velocity. Tests results are presented for a pin on oscillating flat contact with three different initial displacements. The measured velocity is used together with the FMM structural dynamics to determine the Coulomb friction coefficient and estimate the corresponding friction force during motion.
Keyword:
Friction
Coulomb
Dynamics
Energy
Force
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An integrated friction model structure with improved presliding behavior for accurate friction compensation具有改进的预摩擦行为的集成摩擦模型结构，可实现精确的摩擦补偿
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