Question

In a projectile weaving machine, the projectile travels through the shed at an average speed of 24 m/s taking \( \frac{2}{3} \) of the loom cycle. If the efficiency of the weaving machine is 90%, the weft insertion rate (m/min) is:

Hint:

For calculating weft insertion rate, consider both the speed of the projectile and the efficiency of the weaving machine to get the effective weft insertion.

Answer 1

Correct Answer: 855

1. Total loom cycle time (\( T_{{cycle}} \)): \[ T_{{cycle}} = \frac{3L}{2v} \] 2. Weft insertion rate (WIR): \[ {WIR} = \frac{L}{T_{{cycle}}} \times 60 \times \eta = \frac{2v}{3} \times 60 \times 0.9 = 864 \, {m/min} \] Final Answer: \boxed{864}