Find the magnitude of a force supported by a bearing

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SUMMARY

The discussion focuses on calculating the magnitude of the force supported by bearing B in a mechanical assembly. The assembly consists of a plate with a mass of 15 kg, supported entirely by bearing A, while a 120 Nm couple acts on the shaft. The cable from C to D prevents the plate from rotating, indicating that the force at bearing B is purely horizontal. The solution involves first determining the tension in the cable before calculating the force at bearing B.

PREREQUISITES
  • Understanding of static equilibrium principles
  • Knowledge of torque and couple forces
  • Familiarity with tension in cables and its effects on structures
  • Basic mechanics of materials and forces
NEXT STEPS
  • Calculate the tension in the cable using static equilibrium equations
  • Determine the horizontal force at bearing B based on the calculated tension
  • Explore the effects of different mass values on the force distribution in the assembly
  • Study the implications of adding additional forces or couples to the system
USEFUL FOR

Mechanical engineers, physics students, and anyone involved in analyzing static systems and forces in mechanical assemblies will benefit from this discussion.

wannawin
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Homework Statement

Find the magnitude of the force supported by bearing B if the weight of the assemble is supported entirely by A and there is a 120 Nm couple to the shaft. The plate has mass of 15 kg. The cable from C to D prevents the plate from turning.

http://img299.imageshack.us/i/assignment42010.png/

The Attempt at a Solution


I'm not really sure where to start on this one. I know the entire assembly is in equilibrium, but no idea where to go from there.
 
Last edited by a moderator:
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hi wannawin! :smile:

"the weight of the assembley is supported entirely by A", so the force at B must be purely horizontal

first find the tension in the cable, then find the force at B :wink:
 

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