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Friction Apparatus for Very Low‐Speed Sliding Studies

 

作者: F. Heymann,   E. Rabinowicz,   B. G. Rightmire,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1955)
卷期: Volume 26, issue 1  

页码: 56-58

 

ISSN:0034-6748

 

年代: 1955

 

DOI:10.1063/1.1771241

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The phenomenon of stick‐slip, which manifests itself in the squeaking of rubbing surfaces and is of considerable practical importance, can be advantageously studied at very low sliding speeds. An apparatus has been developed in which a flat surface is driven at speeds on the order of 10−7to 10−4cm/sec, the driving force being a weight. The speed is controlled by the viscous drag of a paddle in a bath of pitch. There is no appreciable elastic restraint in this drive, so that stick‐slip vibration of the moving surface does not occur. A stationary rider is pressed against the moving surface by a dead weight. The friction is measured by the elastic deflection of a ring, the stiffnessofwhich controls the tendency of the rider toward stick‐slip vibration. Results are briefly described.

 

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