Problem 1: (50 points) The length of the crank of this mechanism is L,-1.0 unit.

Question

Problem 1: (50 points) The length of the crank of this mechanism is L,-1.0 unit. In the shown configuration AO, 1.14 units. Furthermore we know that ?. 1.0 rad/sec CCW, do,-066 rad/sec CW a, 0.44 rad/sec CW, a, -1.64 rad/see cw n constructed, and the acceleration polygon is incompletely provided. The velocity polygon has bee (a) Write the acceleration vector polygon containing all the comp (c) Identify all the components as vectors on the polygon. onents. t (except for slip). O. 1 unit/sec r;?. " 0.75 O, A0: 0. 1 unit/sec2

Explanation / Answer

(1).for acc poly Gon we know that the link 1 is fixed so vector(a1)=0

so the vector polygon can be written as

vector(a2)+vector (a3)+vector(a4)=0

from this equetion by putting the value of a2 and a4 we can calculate thethe valalue of a3

(2).L2=1m

so the velocity at point A = Va

Va=w2×L2=1×1×.44=.44m/ss

similerly calculate for others

(3).velocity vector polygon will be

vector(v2)+vector(v3)+veector(v3)

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