A double-thread trapezoidal-metric-thread-form screw, which is driven by a motor, raises a nut and the attached load of 16 KN at a speed rate of 12 m/min. The screw has a pitch of 6mm and a mean diameter of 38 mm. The collar (with worn-out surface) has diameters of D = 70mm and d = 40mm. The coefficients of thread and collar friction are both 0.1. Determine the power in kW required to raise the load. Round your answer to 4 significant figures.

A double-thread trapezoidal-metric-thread-form screw, which is driven by a motor, raises a nut and the attached load of 16 KN at a speed rate of 12 m/min. The screw has a pitch of 6mm and a mean diameter of 38 mm. The collar (with worn-out surface) has diameters of D = 70mm and d = 40mm. The coefficients of thread and collar friction are both 0.1. Determine the power in kW required to raise the load. Round your answer to 4 significant figures.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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