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of the flat jet with an inclination angle was investigated by a water model. A mathematical model for the shrinkage and the trajectory of the flat jet with an inclination angle was derived theoretically and verified by experimental data of the water model. The experimental results indicate that the inclination angle (α) has no influence on the shrinkage of the flat jet, the shrinkage of the flat jet along......
An intelligent method for contact fatigue reliability analysis of spur gear under EHLHU Yun(胡贇)1, 2, LIU Shao-jun(刘少军)1, 2, CHANG Ji-hua(常继华)1, 2, ZHANG Jian-ge(张建阁)1, 2(1. School of Mechanical...:To complete the contact fatigue reliability analysis of spur gear under elastohydrodynamic lubrication (EHL) efficiently and accurately, an intelligent method is proposed. Oil film pressure......
A new contact material-Ag/SnO2-La2O3-Bi2O3LU Jianguo, WANG Jingqin, ZHAO Jingying, WEN Ming, WANG Baozhu, and WANG XiaohongInstitute of Electrical Apparatus, Hebei University of Technology, Tianjin, 300130, China摘 要:<正>A super-fine compound powder, Ag/SnO2+La2O3+Bi2O3, has been obtained using the chemical coprecipitationmethod. And a new contact......
J. Cent. South Univ. (2012) 19: 953-961 DOI: 10.1007/s11771-012-1097-z Numerical assessment on improving multistage centrifugal impeller performance by changing inlet skew angle at impeller inlet M... is to investigate the influences of lean angle at the blade tip of the impeller inlet. Four variations of lean angles, that is, 8°, 10°, 15° and 20°, were made at first stage impeller. Reynolds Average Navier Stokes......
surface, around which the tangent plane of the intrusive body is approximately consistent with the trend surface; (3) the contact zones with angle between intrusive body original contact surface and trend contact surface ranging from 35° to 70°; (4) the parts with angle between intrusive body original contact surface and regional extruding far crustal stress ranging from 50° to 60......
J. Cent. South Univ. (2012) 19: 517-521 DOI: 10.1007/s11771-012-1034-1
tooth radius to avoid undercutting is (Rr)max=13.04 mm. 3 Contact stress 3.1 Contact force between rotors Figure 4 shows a specific unit of the inner-rotor running angle of θ3=22.5° (θ2=20... 2011 Abstract: The wear rate between the rotors of a hypotrochoidal gear pump is characterized. Using the knowledge of shape design on the rotors, the contact stresses without hydrodynamic effect......
The Morphology of Rolling Contact Fatigue Fracture of Hardened Steels王绪,章守华,崔佩庸摘 要:<正> Rolling Contact Fatigue(RCF) is a cumulativedamage phenomenon when metals are subjectedto repeated contact stresses. The fomationof pitting on the contact surface is the resultof the rolling contact fatigue. The morphologiesof rolling contact fatigue fracture......
Non-fluctuating target detection in low-grazing angle with MIMO radarDING Jin-can(丁锦灿), CHEN Hao-wen(陈浩文), WANG Hong-qiang(王宏强), LI Xiang(黎湘), ZHUANG Zhao-wen(庄钊文) (School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China)Abstract:The non-fluctuating target detection in low-grazing angle using multiple-input multiple-output (MIMO) radar......
; (5) where is the fixed angle of rotation of the shaper. Consequently, the contact lines... the research on the surface contact area and singularity rules of the worm thread surface. The disadvantage of current face-gear grinding method that only part of the working surface of the face-gear can......