Question

machine design question

Q1. Load and Stress Analysis The countershaft with the reverse gears attached to is shown in figure 2 with the dimension given in table 1. Gear A receives power from another gear with the transmitted force Fa applied at the pressure angle au as shown. The power is transmitted through the shaft and delivered through gear B through a transmitted force Fs at the pressure angle shown. You can find the values of the parameters in table 1 [10 points] a) Determine the force Fe, assuming the shaft is running at a constant speed. simple supports. set for the horizontal plane and another set for the vertical plane. b) Find the magnitudes of the bearing reaction forces, assuming the bearings act as c) Draw shear-force and bending-moment diagrams for the shaft. If needed, make one d) At the point of maximum bending moment, determine the bending stress and the torsional shear stress. e) At the point of maximum bending moment, determine the principal stresses and the maximum shear stress. LI し2 し3 CB dia. d Driven gear A dia. du Pinion gear iB dia. dB Figure 2. Gear A and B attached to the countershaft. 4 Value Vlne 2 8 12 Unit 2 |!。。。..(L' + L.) | 225 1500 × (l+ 은)| 666.4 L9 | mm

Answer 1

Bending moment, shear force and bending stress all data are submitted in files below: