Bar AB of Fig. with weight W and length L has a uniform cross section. Rotation of the bar is resisted by a torsional spring with spring constant 4. The spring is neutral when 0- 0°. Determine The minimum stiffness & for the spring, in terms of W and L, if the bar is to be in stable equilibrium when 0 = 0°.

Bar AB of Fig. with weight W and length L has a uniform cross section. Rotation of the bar is resisted by a torsional spring with spring constant 4. The spring is neutral when 0- 0°. Determine The minimum stiffness & for the spring, in terms of W and L, if the bar is to be in stable equilibrium when 0 = 0°.

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter10: Virtual Work And Potential Energy

Section: Chapter Questions

Problem 10.59P: The weight of the uniform bar AB is W. The stiffness of the ideal spring attached to B is k, and the...

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Question

Bar AB of Fig.
with weight W and length L
has a uniform cross section. Rotation of the bar is resisted
by a torsional spring with spring constant 4. The spring is
neutral when 0- 0°. Determine
The minimum stiffness & for the spring, in terms of W
and L, if the bar is to be in stable equilibrium when
0 = 0°.

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