Estimating the Damping in a Single Degree of Freedom System Lab Report - 1

Estimating the Damping in a Single Degree of Freedom System - Lab Report Example there are a number of sources for damping and in this experiment we are required to determine their overall effect. The excitation of the system will be provided by a shaker driving the opposite end of the beam from the attached weight down. Two different methods will be used to estimate the damping half-power bandwidth measurement in the oftenness domain and a logarithmic decrement in the time-domain.a) Set up the system to use an accelerometer to measure the frisson of the beam near the attached weight while applying a computer-generated forcing signal via the shaker attached to the opposite end of the beam.c) Observe the resonant peak corresponding to mass-on-a-spring type motion, and compare it to what you would expect establish on a simple calculation using the mass of the attached weight and the static stiness of the beam.When a mechanical system is displaced from its position at equilibrium and then released, the restoring force returns it to equilibrium position. This kind of movement is referred to as free vibration. Free vibration results arise from the initial impact energy that keeps ever-changing consistently from potential energy to kinetic energy forms. In a state of free vibration, the mechanical system is said to be vibrating at its inborn frequency. However, due to some various causes, dissipation of the mechanical energy occurs during vibration and this effect is referred to as damping. In theory, an un-damped freely vibrating system continues to vibrate after it has started. In this experiment, we shall investigate the effect of damping and the level of damping in the mechanical system. Vibration can basically be classified in a number of ways includingb. Un-damped and damped vibration In un-damped vibrations, no energy is lost or dissipated as a result of friction during the oscillatory motion. If any energy is lost, the