The following will introduce the role of displacement and velocity in vibration in detail:

water discharge

Displacement is one of the most basic parameters to describe the physical properties of vibration. It refers to the spatial deviation of an object or particle from its equilibrium position. Imagine it as a spring to understand vividly.

When the spring is at rest, we call it the equilibrium position. If we apply a little force to the spring to make it vibrate, then it is no longer in an equilibrium position, and its deviation is displacement.

Displacement is directional, usually expressed by scalar or vector. In the process of vibration, objects or particles will oscillate around the equilibrium position with a small amplitude. Therefore, the displacement is not fixed, but a variable that changes with time. It can be expressed by a mathematical formula, for example, x(t) represents the displacement at time t.

speed

Velocity is also one of the most basic parameters to describe the physical properties of vibration. It refers to the speed of motion of an object or particle relative to its equilibrium position in space. In vibration phenomenon, velocity represents the displacement change experienced by an object or particle in unit time.

Speed is also directional, usually expressed in scalar or vector. When an object or particle moves in vibration, it will produce a certain speed. Velocity, like displacement, is a dynamic time variable, which can be expressed by the mathematical formula v(t).

Expand one's knowledge

In addition to displacement and velocity, vibration also involves a series of physical parameters such as frequency, period and acceleration. Frequency represents the speed of vibration and refers to the number of vibrations per unit time. The period represents the repetition time of vibration. Acceleration is the change of acceleration of an object or particle during vibration.

In practical applications, displacement and velocity are often widely used in testing and measurement, such as vibration testing of automobiles while driving, vibration detection of mechanical equipment and so on. They are the key parameters for evaluating, predicting and controlling vibration characteristics and vibration effects.