A riveting machine is driven by a 3.5 kW motor. The moment of inertia of the rotating parts of the machine is equivalent to 67.5 kg-m-at the shaft on which the flywheel is mounted. At the commence- ment of an operation, the flywheel is making 240 rp.m. If closing a rivet occupies I second and corresponds to an expenditure of 9 kN-m of energy, find the reduction of speed of the flywheel. What is the maximum rate at which rivets can be closed ? (Ans. 33.2 rpm.: 24 per min ]

A riveting machine is driven by a 3.5 kW motor. The moment of inertia of the rotating parts of the machine is equivalent to 67.5 kg-m-at the shaft on which the flywheel is mounted. At the commence- ment of an operation, the flywheel is making 240 rp.m. If closing a rivet occupies I second and corresponds to an expenditure of 9 kN-m of energy, find the reduction of speed of the flywheel. What is the maximum rate at which rivets can be closed ? (Ans. 33.2 rpm.: 24 per min ]

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter8: Centroids And Distributed Loads

Section: Chapter Questions

Problem 8.95P

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Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.

Question

3.
A riveting machine is driven by a 3.5 kW motor. The moment of inertia of the rotating parts of the
machine is equivalent to 67.5 kg-m-at the shaft on which the flywheel is mounted. At the commence-
ment of an operation, the flywheel is making 240 rp.m. If closing a rivet occupies I second and
corresponds to an expenditure of 9 kN-m of energy, find the reduction of speed of the flywheel. What
is the maximum rate at which rivets can be closed ?
(Ans. 33.2 rp.m.: 24 per min ]

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