Trolley Torque Calc: Start & Achieve Speed of 40 mpm

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SUMMARY

The discussion focuses on calculating the torque required to start a trolley measuring 11m x 1.7m, weighing 7 tons, and achieving a speed of 40 meters per minute (mpm) over a distance of 8 meters. The trolley features a double drive with wheels having a diameter of 175 mm. Participants emphasize the importance of drawing a free body diagram to visualize the forces acting on the trolley and suggest using energy methods to determine the resultant force necessary for movement.

PREREQUISITES
  • Understanding of basic physics principles, particularly Newton's laws of motion.
  • Familiarity with torque calculations and their application in mechanical systems.
  • Knowledge of free body diagram construction to analyze forces.
  • Experience with energy methods in physics for calculating work and force.
NEXT STEPS
  • Research torque calculations for wheeled vehicles, focusing on direct drive systems.
  • Learn how to construct and interpret free body diagrams in mechanical contexts.
  • Study energy methods in physics, particularly in relation to force and motion.
  • Explore the effects of wheel diameter on torque and acceleration in transport systems.
USEFUL FOR

Mechanical engineers, physics students, and anyone involved in the design and operation of wheeled transport systems will benefit from this discussion.

sandip patil
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Dear All,

We have a trolley with double drive (trolley size 11mX1.7m)
wheel dia 175 mm
Total wt. on trolley = 7 Tones.
Speed of trolley 40 mpm
Distance to travel 8 m
Drive - direct mounted on wheel

Please help me to calculate how much torque will needed to start the trolley and get the speed of 40mpm in details
 
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Start by drawing a free body diagram with all the forces and dimensions.

Since you have the mass of the trolley and its intended velocity, you can find the resultant force needed to carry it 8 m using energy methods.
 

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