A makeshift compact torsional spring is made of steel (Gst = 11,000,000 psi) and is composed of a solid inner shaft from C to B and a hollow shaft from A to B. The solid and hollow shafts are connected through an unyielding ring at B. The necessary radiuses are shown below. Assume the ring attached to the hollow shaft at A is rigid with no rotation. If the torque applied T at point C is 2 kip-in, find the: a. Maximum shear stress in the solid inner shaft, ksi b. Maximum shear stress in the hollow outer shaft, ksi c. Angle of twist at point C, degrees 12 in. 12 in. B 0.75 in. 1 in. 0.6 in.
Simple harmonic motion
Simple harmonic motion is a type of periodic motion in which an object undergoes oscillatory motion. The restoring force exerted by the object exhibiting SHM is proportional to the displacement from the equilibrium position. The force is directed towards the mean position. We see many examples of SHM around us, common ones are the motion of a pendulum, spring and vibration of strings in musical instruments, and so on.
Simple Pendulum
A simple pendulum comprises a heavy mass (called bob) attached to one end of the weightless and flexible string.
Oscillation
In Physics, oscillation means a repetitive motion that happens in a variation with respect to time. There is usually a central value, where the object would be at rest. Additionally, there are two or more positions between which the repetitive motion takes place. In mathematics, oscillations can also be described as vibrations. The most common examples of oscillation that is seen in daily lives include the alternating current (AC) or the motion of a moving pendulum.
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