Question 42 (Textile Engineering & Fibre Science)
A shuttle loom producing 3 up 1 down twill fabric is running at 180 picks per minute. The angular velocity of the tappet (cam) shaft in radian per second, accurate to two decimal places, would be ………………
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Given in the question:
Weave type=3 up 1 down twill
i.e., total picks=3+1
Total picks=4
Fabric speed=180 picks per minute
=180/60 picks per sec
Fabric speed=3 picks/sec
The angular velocity of the tappet(cam) shaft(radian/sec)=?
Formula:
Angular velocity(v)=
Where, N=Speed of tappet shaft(per sec)
Tappet shaft speed(N)=Fabric speed/Total no. of picks
Tappet shaft speed(N)=3/4 per sec
Angular velocity(v)=
Angular velocity(v)=2 x 3.14 x 3/4
Angular velocity of tappet shaft(v)=4.71 radian/second (Answer)