(35 pts total) A four bar linkage is going to be used to press fit a bearing into a hole in the green part on an assembl

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35 Pts Total A Four Bar Linkage Is Going To Be Used To Press Fit A Bearing Into A Hole In The Green Part On An Assembl 1 (255.41 KiB) Viewed 20 times

(35 pts total) A four bar linkage is going to be used to press fit a bearing into a hole in the green part on an assembly line. The tool (shown as the orange block) that will push the bearing into the hole is located at a distance Tout = 40 cm from 04 along link four. Use the linkage notation shown in the schematic for this problem. B Fout Fin A A * LNCS 2 4 Tout Tin 42 02 ਜਿਲਦੇ 04 X GCS 1 0 -1 0 0 0 0 0 0 0 Fix 0 1 0 -1 0 0 0 0 0 Fizy 02 0 0 Ta sine, -rzcos 0 0 0 0 0 F 04 The link lengths are 71 = 30 cm, r2 = 40 cm, 13 = 25 cm, 14 = 50 cm. At the instant shown 0, = 55, and the input link is moving with angular velocity of W, = -0.2 rad/s and angular acceleration az = 0.1 rad/s. Fysy F Free A. (5 pts) Determine the angles 83 and 4 when = 55° Fy 0 0 0 0 1 0 1 0 cos (0, +) Bu sin(0, +) 0 B. (5 pts) Find the angular velocities of the links 03 and 4. 0 0 0 0 1 0 1 Fray 0 0 0 0 - sine, cos 0 0 Yout LFour C. (5 pts) Find the angular accelerations of the links az and 4 Fmcos(6, + -F.sin(83+) F D. (5 pts) if a force of 125 N (Fin) is applied perpendicular to link 2 at a distance of Tin = 25 cm along the link from 0, when the link is in the position described above, what is the mechanical advantage at the orange tool and the force (Fout) applied to the bearing? 0 E. (5 pts) You are sizing the pins for the four bar and want to know the forces each pin will experience. Assume that the applied force Fim and force Fout and forces in the pins are much greater than the inertial forces or weights of the links. For only link 3, draw a free body diagram of the link and label the forces acting on it (you do not need to include a weight of the link or inertial forces). 0 0 G. (3 pts) Salve the matrix (either in MATLAB or another program to find all of the pin force components Pia Fizy, Farr Fray Fr. Frar, Fle, F, as well as the force Fout you can use this to check part D). F (7 pts) From your diagram write three equations (summing forces in two directions and moments about point A) and finish populating the matrix on the next page. I have already put in the information from free body diagrams from all of the other links using the assumption from part E.