Measurement of Piston Skirt Oil-film Pressure under Piston Slap
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概要
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Using small thin-film pressure sensors deposited onto a piston skirt surface, oil-film pressure on the piston skirt surface is measured when piston slap noise is generated without affecting the surface geometry, stiffness and mass of the piston. Under a no-load firing engine condition and at low temperature, the measured oil-film pressure corresponded well to the measured acceleration of the cylinder liner, which is indicative of piston slap noise, confirming the validity of the present method. And this resulted in more insight into piston secondary motion than only by acceleration of cylinder liner when the piston collides with the cylinder liner.
- 公益社団法人 自動車技術会の論文
公益社団法人 自動車技術会 | 論文
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