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 Wysłany: Czw 1:06, 09 Gru 2010 Temat postu: ugg boots billig Interference with the numerical a |
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Interference with the numerical analysis and optimization
Occlusal surface length, the thickness of the wheel, L a 25mm. Ⅲ is the maximum transmission torque (2) 0.1; d is the diameter with the surface, d-M a 9549 (3) where: P is rated power, P a 10kW; for the motor rated speed,: 2000r/min; A the overload factor, taking into account the large torque when the motor starts, taking A for a 2.2; C for the safety factor, taking into account the reliability of torque transmission, take C-2. According to equation (2) (3), it is easy to calculate maintained strong links between the sleeve and the wheel with the surface when the ratio between the minimum required pressure 4.412MPa, the curves obtained from the fitting expression (1) to calculate amount of interference obtained 0.2084mm. Take the amount of interference is 0.21mm,[link widoczny dla zalogowanych], the 200rad / s inertia loads,[link widoczny dla zalogowanych], wheel and other stress simulation results shown in Figure 5,[link widoczny dla zalogowanych], the interference with the plane stress simulation results shown in Figure 6. 5453661899lln96162299OO68726O976LL. ; 11223344 1 Young Canadians such as: interference with the numerical analysis and optimization of 15 ・ X'Zl71lo0 .129 E +08 O. 258E +08 O. 386E + O8O. 515E +080.645 E +070.193 E +080.322 E +080.45 IE +080.579 E +08 MNMX0O. 134E +080.267 E +080.401 E +080.535 E080.668E +070.201 E +080.334 E +080.468 E +080.602 E +08 6 Figure 5 and other effects of the interference fit trying to stress the surface of Fig. 5SEQVofnominalspeedFig. 6Pressureofinterferencefitareas Figure 5 shows, run at rated speed dial, the maximum equivalent stress of not more than 57.9MPa, fully meet the requirements of material strength. Figure 6 shows, there is stress on the contact surface, no loose contact surface, the maximum compressive stress of about 6O. 2MPa. At the same time,[link widoczny dla zalogowanych], extracted from the solution results in an average ratio of pressure 4.7545MPa, greater than the minimum specific pressure 4.412MPa, to meet the power delivery requirements. 4 Conclusion According to the simulation results shows that: the sleeve and the best round of the interference between the amount of 0.21mm. Designed in accordance with the parameters of high speed dials can 1900r/min, the continuous and reliable safe operation. References (References): [1] E2] [3] E4] Zhao Hua, Yin Hui. Various column tube and shaft interference fit of EJ]. Petroleum Machinery, 1998,26 (2) :7-1O. ZHAOHua, YINHui. Interferencefitbetweencolumncasingandshaft [J]. ChinaPetroleumMachinery, 1998,26 (2) :7-10. (InChinese) Qiao Fang Zhang, Jia Hong. Axle interference fit finite element analysis of EJ]. Mechanical Strength, 2006,28 (4) :543-546. ZHANGQiao-fang, JIAHong. FiniteelementanalysisofshrinkfitindiscwithshaftEJ]. JournalofMechanicalStrength, 2006,28 (4) :543-546. (InChinese) repair the world over. Interference fit with the calculation of the amount of interference correction EJ]. Gold Technology,[link widoczny dla zalogowanych], 2000,2 (2) :111-112. XIUShi-chao. CalculationoftheinterferencejointforreliabilityEJ]. GoldJournal, 2000,2 (2) :111-112. (InChi-nese) Xiaowen Wei. Failure of interference fits with the analysis and treatment of EJ]. Power Metallurgy, 1995 (5) :35-37. XIAOWen-wei, Analysisandtreatmentofinterferenceconnectionfailure [J]. MetallurgicalPower, 1995 (5) :35-37. (InChinese)
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