The figure 1 shows a pulley assembly that consists of a shaft supported by two bearings and driven by a motor on the righthand side (not shown in the figure). The shaft diameter is 100mm. The pulley consists of two disks, each disk is 15 mm thick and has an outer diameter of 620mm, that are connected by means of a cylindrical shell. The length of the shell is 500mm, the outer diameter of the shell is 600mm, and the thickness of the shell is 15mm. The pulley drives a belt that places a uniformly distributed load on the shell (of 100000N) as shown in the diagram. The belt lifts a load that applies a torque of 6000Nm to the pulley. The shell and the plates are connected. A 6mm fillet should be applied to all the  90 degree corners between the shaft and the plates and between the shell and the plates. Apply the boundary conditions and the forces and torques to the system and determine the following: Calculate the highest Principal stresses in the system ?

Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN:9781285444543
Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Chapter8: Computer Numerical Control
Section8.1: Cnc Basics
Problem 3RQ: Briefly describe a ball screw and a linear guide.
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The figure 1 shows a pulley assembly that consists of a shaft supported by two bearings and driven by a motor on the righthand side (not shown in the figure). The shaft diameter is 100mm. The pulley consists of two disks, each disk is 15 mm thick and has an outer diameter of 620mm, that are connected by means of a cylindrical shell. The length of the shell is 500mm, the outer diameter of the shell is 600mm, and the thickness of the shell is 15mm. The pulley drives a belt that places a uniformly distributed load on the shell (of 100000N) as shown in the diagram. The belt lifts a load that applies a torque of 6000Nm to the pulley. The shell and the plates are connected. A 6mm fillet should be applied to all the  90 degree corners between the shaft and the plates and between the shell and the plates.

Apply the boundary conditions and the forces and torques to the system and determine the following:

Calculate the highest Principal stresses in the system ?

75mm
250mm
250mm
75mm
UNIFORMLY DISTRIBUTED LOAD
UNIFORMLY DISTRIBUTED LOAD
Pulley
Bearing
Motor and Bearing
Shaft
Shaft
650mm
Transcribed Image Text:75mm 250mm 250mm 75mm UNIFORMLY DISTRIBUTED LOAD UNIFORMLY DISTRIBUTED LOAD Pulley Bearing Motor and Bearing Shaft Shaft 650mm
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