球と粗い面の接触

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書誌事項

タイトル別名
  • Contact between Spheres and Rough Plates
  • キュウ ト アライ メン ノ セッショク

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抄録

The contact mechanism between spheres and rough plates is theoretically analysed for the mixed contacts that the contacting asperities are deformed elastically and plastically according to their displacements being less and greater than a critical displacement, respectively. Analyses are also carried out for the contacts in which all the contacting asperities make elastic deformation and plastic deformation respectively, regardless of the displacement of their asperities. The analyses lead to the results that some differences in the analytical results arise from the mixed, elastic and plastic contacts. To confirm the analytical results experimental investigations are carried out pressing a steel ball against rough plates under various loads. To observe the clear indentations made on rough plates, a technique coating a rough plate with an evaporated carbon film in vacuum and a lump black film is successfully used. The approaches between a ball and rough plates are also measured under various loads using the differential transformers. Little difference is found between the analytical results and the experimental ones.

収録刊行物

  • 精密機械

    精密機械 45 (540), 1425-1430, 1979

    公益社団法人 精密工学会

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