Analysis of Rotor Contact for Screw Compressor(<Special Issue>Micro Mechanical Engineering)

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概要

• 論文の詳細を見る

• A reliability evaluation of meshing rotor surfaces needs contact theory on a micro size area. We propose a method to evaluate whether a screw compressor rotor has enough contact fatigue strength. The method is based on analyses of three dimensional curvatures and the Hertz contact pressure. At a contact point one of the principal curvatures directs the rotor's sealing line and this is calculated as the gap distribution. Another perpendicular curvature is calculated with an approximate arc to the rotor profile. As the contact point is an inflection point, the contact condition is first calculated on each side and then composed. Using our method we found the rotors of a typical screw compressor have enough strength. This is because the rotor contact pressure is calculated to be 0.57 times of a contact fatigue strength of their material.

• 一般社団法人日本機械学会の論文
• 2004-08-15

著者

• Kameya Hirotaka

  Mechanical Engineering Research Laboratory Hitachi Ltd.

• AOKI Masakazu

  Hitachi Industrial Equipment Systems Co., Ltd.

• NOZAWA Shigekazu

  Hitachi Air Conditioning Systems Co., Ltd.

• Aoki Masakazu

  Hitachi Industrial Equipment Systems Co. Ltd.

• Nozawa Shigekazu

  Hitachi Air Conditioning Systems Co. Ltd.

• Kameya Hirotaka

  Mechanical Engineering Research Laboratory Hitachi, Ltd.

関連論文

• Analysis of Rotor Contact for Screw Compressor(Micro Mechanical Engineering)
• A24-044 ANALYSIS OF ROTOR CONTACT FOR SCREW COMPRESSOR
• GI-03 SIMPLIFIED METHOD FOR CALCULATING TRANSMISSION ERROR BETWEEN ROTORS OF A SCREW COMPRESSOR(INSPECTION OF GEARS)
• Sub-1-μA Dynamic Reference Voltage Generator for Battery-Operated DRAM's (Special Section on the 1993 VLSI Circuits Symposium (Joint Issue with the IEEE Journal of Solid-State Circuits, Vol.29, No.4 April 1994))

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