Problem 3-16

# Problem 3-16 - MACHINE DESIGN An Integrated Approach 3-16-1...

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MACHINE DESIGN An Integrated Approach 3-16-1 PROBLEM 3-16 Statement: A track to guide bowling balls is designed with two round rods as shown in Figure P3-6. The rods are not parallel to one another but have a small angle between them. The balls roll on the rods until they fall between them and drop onto another track. The angle between the rods is varied to cause the ball to drop at different locations. Each rod's unsupported length is 30 in and the angle between them is 3.2 deg. The balls are 4.5 in dia and weigh 2.5 lb. The center distance between the 1-in-dia rods is 4.2 in at the narrow end. Find the distance from the narrow end at which the ball drops through and determine the worst-case shear and moment maximum for the rods as the ball rolls a distance from the narrow end that is 98% of the distance to drop. Assume that the rods are simply supported at each end and have zero deflection under the applied loading. (Note that assuming zero deflection is unrealistic. This assumption will be relaxed in the next chapter after deflection has been discussed.)

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Problem 3-16 - MACHINE DESIGN An Integrated Approach 3-16-1...

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