Improvement of torsional fretting fatigue strength of splined shaft used for car air conditioner's compressor by hybrid joint

Masanobu Kubota, Kanetaka Miyazawa, Masato Miwa, Akihiro Tashiro, Tatsuro Aoki, Yoshiyuki Kondo

Research output: Contribution to journalArticle

Abstract

To improve the fretting fatigue strength of splined shaft used for compressor of car air conditioner, press-fit joint was combined with the spline joint. Torsional fretting fatigue strength of the combined jointed shaft was evaluated focusing on the effect of press-fit interference which must be secured when the combined joint is applied to the production process. Torsional fretting fatigue strength of the splined shaft was drastically increased by the combination of press-fit. The improvement was achieved by sharing transmitted torque between press-fit and spline. While fretting fatigue failure occurred at the press-fitted part when the press-fit interference was relatively small, the combined jointed shaft had four times higher fatigue strength than the conventional splined shaft. The increase of press-fit interference prevented the fretting fatigue failure and brought further increase of the fatigue strength, since amount of relative slip was significantly reduced by the increase of contact pressure.

Original languageEnglish
Pages (from-to)208-217
Number of pages10
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume77
Issue number773
Publication statusPublished - Dec 1 2011

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Compressors
Railroad cars
Air
Splines
Fatigue of materials
Torque
Fatigue strength

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Improvement of torsional fretting fatigue strength of splined shaft used for car air conditioner's compressor by hybrid joint. / Kubota, Masanobu; Miyazawa, Kanetaka; Miwa, Masato; Tashiro, Akihiro; Aoki, Tatsuro; Kondo, Yoshiyuki.

In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 77, No. 773, 01.12.2011, p. 208-217.

Research output: Contribution to journalArticle

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