Mechanical vibration refers to the reciprocating motion of an object near its equilibrium position. During the process of mechanical vibration, some physical parameters of the vibrating object, such as displacement and speed, will change repeatedly, which will bring certain effects to daily life and engineering projects Harm. For example, vibration will cause noise pollution, which will cause damage to human body; it will increase the fatigue and wear of components, shorten the life of the machine, etc. Today we will share the common knowledge that vibration testing must know and the preparation before commissioning the test.

1. What is vibration?

Vibration is an oscillation phenomenon of the amount of movement (displacement, speed, and acceleration) in a mechanical system.

2. Purpose of vibration experiment

The purpose of the vibration test is to simulate a series of vibration phenomena, to test whether the product can withstand the test of the vibration environment during transportation or use during the life cycle, and to determine the required standards for product design and function. The essence of the vibration test is to confirm the reliability of the product and screen out the defective products in advance before leaving the factory, and evaluate the failure analysis of the defective products to make it a high-level, high-reliability product.