Question 1. A cylindrical steel shaft with a polished solid surface shown in the figure below is supported by rolling contact (bearing) bearings at points A and B. 765 didk ha is rotated with a 3.5 kW engine. The shaft, to which F force is applied from the application point shown in the figure, performs its duty safely under the conditions. Calculate the maximum force F acting on the shaft, assuming that the notched part on the shaft is (r-3 mm). (HT) (25p) The yield and tensile strength values of the shaft are 325 and 685 MPa respectively and 2.15 times the safety expectation inner ka 0.778, k-0.886, k-ke-kkel will be used. K. and Ka tables will be used and take (q-q,-0.79) 1 " 16 {14(K, M.) + 3(K), T.)] + [4(K,M) +3(K1,Tm)]} 26 Did 3 13 14 La 1.05 10 0.05 0.10 0.15 0.20 0.25 11 NO vid 165 165 A 22 r 20 B-4 125 M 30 26 27 5 1.3 Did-2 1.20 1.33 14 1.09 0.05 0.30 0.35 0.20 0.25 0.30 K=1+q(K-1) veya K=1+4u-1)