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What is Damped Free Vibration: An In-depth Meaning . Damped free vibration refers to the oscillatory motion exhibited by a mechanical or structural system under the effect of a resistive force, also called damping, that gradually dissipates its vibrational energy over time.
Viscous damping is damping that is proportional to the velocity of the system. That is, the faster the mass is moving, the more damping force is resisting that motion. Fluids like air or water generate viscous drag forces.
Viscous damping is damping that is proportional to the velocity of the system. That is, the faster the mass is moving, the more damping force is resisting that motion. Fluids like air or water generate viscous drag forces. A diagram showing the basic mechanism in a viscous damper.
Damped free vibration refers to the oscillatory motion of a system that gradually decreases in amplitude over time due to the dissipation of energy. This damping effect can be caused by factors such as friction, air resistance, or material properties.
27 Μαΐ 2024 · Figure 13.5: Examples of underdamped, overdamped and critically damped free vibrations. For overdamped and critically damped vibrations, different initial conditions are shown for the same ratio \(c / m_{A}\).
Viscous damping is the most used damping mechanism in vibration analysis. When mechanical systems vibrate in a fluid medium such as air, gas, water, or oil, the resistance offered by the fluid to the moving body causes energy to be dissipated.
In this section, we explore the influence of energy dissipation on free vibration of a spring-mass system. As before, although we model a very simple system, the behavior we predict turns out to be representative of a wide range of real engineering systems.
