1.Please design a pair of spur gears in the milling machine. It is known that power input is 7.5kW, Ni 1450r / min, and the %3D transmission ratio is required to be u = 2.08. F1. If there is slight impact, the supplementary conditions for trial design of this pair of gears: primary selection k = 1.8, number of smaller gear teeth Zl = 26. The allowable stress and factors for material is: [0.]= 600 MPa, [o„];= 599 MPa, [o,]ı= 220 MPa, [o,];= 213 MPa. E-1.693, Z =1898/mpa Z, = 2.5 K =1.25 K, =1.1 K=Kf =1.2 %3D %3D K =1.35 Y =2.65, Y =2.28 Y =1.58 Y =1.76 %3D Fal %3D Fa2 sal %3D sa2
1.Please design a pair of spur gears in the milling machine. It is known that power input is 7.5kW, Ni 1450r / min, and the %3D transmission ratio is required to be u = 2.08. F1. If there is slight impact, the supplementary conditions for trial design of this pair of gears: primary selection k = 1.8, number of smaller gear teeth Zl = 26. The allowable stress and factors for material is: [0.]= 600 MPa, [o„];= 599 MPa, [o,]ı= 220 MPa, [o,];= 213 MPa. E-1.693, Z =1898/mpa Z, = 2.5 K =1.25 K, =1.1 K=Kf =1.2 %3D %3D K =1.35 Y =2.65, Y =2.28 Y =1.58 Y =1.76 %3D Fal %3D Fa2 sal %3D sa2
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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