Vibration test

Vibration test is refers to the evaluation of the product in the use of the expected environment vibration resistance and physical objects or model for the vibration test. According to the type of vibration load applied by the vibration test is divided into two kinds of sinusoidal vibration test and random vibration test. Sine vibration test including quota vibration test and scanning sine vibration test. Scanning the vibration test for vibration frequency change according to certain rule, such as linear or index law changes. Vibration test equipment is divided into two parts, loading equipment and control equipment. Loading equipment with mechanical vibration, electromagnetic vibration machine and electric hydraulic vibration table. Electromagnetic vibration table is currently the most widely used a loading equipment. Vibration control experiment is used to produce vibration signals and control the size of the vibration level. Vibration control ?