//To find velocities and acceleration clc //Given: NAO=100 //rpm OA=50/1000,AB=350/1000,DE=250/1000,EF=DE,CB=125/1000 //m //Solution: //Refer Fig. 8.37 //Calculating the angular velocity of the crank AO omegaAO=2*%pi*NAO/60 //rad/s //Calculating the velocity of A with respect to O vAO=omegaAO*OA //m/s vA=vAO //By measurement from the velocity diagram, Fig. 8.37(b), vBA=0.4,vBC=0.485,vB=vBC,vSD=0.265,vQS=0.4,vED=0.73,vFE=0.6,vF=0.27 //m/s DS=85/1000 //m //Calculating the angular velocity of the link DE omegaDE=vED/DE //rad/s //Calculating the velocity of sliding of the link DE in the swivel block vS=vQS //m/s //Calculating the radial component of the acceleration of A with respect to O arAO=vAO^2/OA //m/s^2 //Calculating the radial component of the acceleration of B with respect to A arBA=vBA^2/AB //m/s^2 //Calculating the radial component of the acceleration of B with respect to C arBC=vBC^2/CB //m/s^2 //Calculating the radial component of the acceleration of S with respect to D arSD=vSD^2/DS //m/s^2 //Calculating the coriolis component of the acceleration of Q with respect to S acQS=2*omegaDE*vQS //m/s^2 //Calculating the radial component of the acceleration of F with respect to E arFE=vFE^2/EF //m/s^2 //By measurement from the acceleration diagram, Fig. 8.37(d), arQS=1.55 //m/s^2 //Results: printf("\n\n Velocity of the slider block F, vF = %.2f m/s.\n",vF) printf(" Angular velocity of the link DE, omegaDE = %.2f rad/s, anticlockwise.\n",omegaDE) printf(" Velocity of sliding of the link DE in the swivel block, vS = %.1f m/s.\n",vS) printf(" Acceleration of sliding of the link DE in the trunnion, arQS = %.2f m/s^2.\n\n",arQS)