How do you calculate Cable force?

How do you calculate Cable force?

The force on a current-carrying wire in a magnetic field is F = IlB sin θ. Its direction is given by RHR-1.

What is cable engineering mechanics?

Cables are one of the common structures studied in a first-year engineering mechanics course (statics), since the flexible cable is one of the usual methods of supporting loads. The relations between the length, tensions in the different segments of the cable, reactions at the supports and applied loads are analyzed.

What is the force in a cable?

The vertical component of the cable force is then equal to the shear force in the beam. Conclusion: The vertical component of the cable force is equal to the shear force in the beam (which can be read from the shear force diagram), only if the support reactions of the cable are at equal elevations.

Where is the maximum tension in a cable?

This equation also shows that the maximum tension occurs at the end supports, that is at x = 0 and x = L , which is also where the slope of the cable is maximum. The minimum tension occurs at the mid-span and is equal to H .

How do you calculate cable sag?

The 0.016 inch diameter steel wire weighs about 0.0007 pounds per foot. So for a 10 foot span between level supports, and 30 pounds tension at a given temperature, the sag at the low point (mid point of the span) is d=wl^2/8T = 0.0003 feet, or about 3/1000 of an inch.

How is cable sag calculated?

What is tensional force?

Tension force is the force generated when a load is applied at one or more ends of a material in a directional away, normally to the cross-section of the material. A tension force is often given as a “pulling” force. This type of force always pulls but never pushes.

How are external and internal forces related in a rigid body?

External forces on a rigid body are due to causes that are external to the body. They can cause the body to move or remain at rest as a whole. For example: Internal TENSION or COMPRESSION in a bar, bending moment in a beam. Internal forces develop in any body (not just rigid bodies) that keep all the particles of a body together.

How can we approximate the behavior of a rigid body?

We can approximate the behavior of most structures with rigid bodies because the deformations are usually small and negligible. Even in cases when the deformations are not negligible, we can still apply the principles of equilibrium and statics to the deformed or the current configuration of the body to find out what forces the body is carrying.

How to determine the equivalent system of forces?

Determine: a) moment about O, b) horizontal force at A which creates the same moment, c) smallest force at A which produces the same moment, d) location for a 240 -lb vertical force to produce the same moment, e) whether any of the forces from b, c, and d is equivalent to the original force. Monday, September 14, 2009 6:07 PM

Is it possible to replace the direct determination of the moment of a force?

• Follows from the Distributive property of the vector cross product Varigon’s Theorem makes it possible to replace the direct determination of the moment of a force Fby the moments of two or more component forces of F.