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Title
Japanese:静圧気体軸受内流れの剪断発熱に関する数値解析 
English: 
Author
Japanese: 武石 桐生, 大西 領, 肖 鋒, 香川 利春.  
English: 武石 桐生, Ryo Onishi, 肖 鋒, 香川 利春.  
Language Japanese 
Journal/Book name
Japanese:精密工学会誌 
English: 
Volume, Number, Page Vol. 91    No. 4    pp. 484-492
Published date Jan. 16, 2025 
Publisher
Japanese:公益社団法人 精密工学会 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Abstract <p>In this paper, a numerical evaluation method of shear heat generation in aerostatic bearings is investigated. 1D simple analytical model and 3D detailed numerical model were developed. 1D simple analytical model assumed 1D shear flow in the bearing, and the analytical solution was derived. The 3D detailed numerical model was created by modifying an existing solver in OpenFOAM. Using these models, shear heating values were calculated for several aerostatic bearings with different geometries. Comparison of the results showed that when the axial flow velocity is 0.6 times or less than the circumferential velocity of the shaft, the calculation results of the 1D simple analytical model agreed well with those of the 3D detailed numerical model.</p>

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