J0403-3-1 ハイブリッド締結によるスプライン軸のフレッティング疲労強度向上([J0403-3]締結・接合部の力学と評価(3):フレッティング,溶接・接合)

概要

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Press-fit joint was combined to spline joint to prevent fretting fatigue failure of the spline teeth. This study focused on the effect of press-fit allowance on torsional fretting fatigue strength of the combined jointed shaft. The fretting fatigue strength was drastically increased. While fretting fatigue failure occurred at the press-fitted part when the press-fit allowance was relatively small, the combined jointed shaft had four times higher fretting fatigue strength than conventional splined shaft. Increase of the allowance in which amount of relative slip in fretting was significantly reduced prevented fretting fatigue failure and brought further increase of fatigue strength.
2010-09-04