Test introduction

Vibration test simulates various vibration environmental impacts encountered by products during transportation, installation and use environments. This test simulates various vibration environmental impacts encountered by products during transportation, installation and use environments, and is used to determine whether the product can withstand various environmental vibrations. Vibration test evaluates the resistance of components, parts and complete machines in the expected transportation and use environment.

testing purposes

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

detection range

Rail transit: signal system, gate, ticket vending machine, subway door, braking system, etc.;

Automotive industry: in-vehicle multimedia, engines, interior and exterior decoration, switches, brake systems, etc.;

Photovoltaic industry: photovoltaic inverters, power supplies, copper bars, etc.;

Electronics and electricians: refrigerators, washing machines, massage chairs and other controllers, information products, power tools, etc.;

Military industry: military cables, shipborne control cabinets, military communication equipment, etc.;

Medical industry: medical monitoring equipment, laser surgery equipment, etc.;

Civil communications: mobile phones, wireless devices, routers, remote controls, etc.;

Other industries: frequency converters, steel structures, construction machinery, heavy industry, etc.

test classification

Vibration test is divided into sinusoidal vibration and random vibration.

1)sinusoidal vibration

Sine vibration is a simple harmonic vibration of periodic vibration, which is the simplest vibration. In the sinusoidal vibration test method, two test methods are specified: “sweep frequency test” and “fixed frequency test”.

The purpose of the sinusoidal vibration test is to simulate the sinusoidal vibration and its effects that products may experience during transportation, storage and use in the laboratory. Sinusoidal vibration is mainly caused by the rotation, pulsation, oscillation and other forces of aircraft, vehicles, ships, aerial vehicles and ground machinery.

test standards

GB/T 2423.& nbsp;10-2008 Environmental testing for electric and electronic products-Part 2: Test methods Test Fc: Vibration (sinusoidal)

IEC 60068-2-6-2007 Basic Environmental Test Procedure Part 2: Tests. Section 6: Test Fc: Vibration (sine wave)

IS0 8318-2000 Packaging Full transport packages and units of cargo use variable frequency sinusoidal vibration testing

GB/T 4857.& nbsp;10-2005 Packaging-Basic tests for transport packages-Part 10: Sinusoidal frequency vibration test method

2)random vibration

Vibration whose instantaneous value cannot be predetermined at any given moment in the future. In a general transportation environment, the vibration environment generated by transportation vehicles belongs to random vibration. Even if at the same time, each different frequency has a different vibration amount. When performing random wave vibration test, due to the vibration magnitude at the same time and different beard rates.

test standards

GB/T 2423.& nbsp;56-2006 Environmental testing for electric and electronic products-Part 2: Test methods-Test Fh: Broadband random vibration (digitally controlled) and guidance

IEC 60068-2-64-2008 Basic Environmental Test Procedure. Part 2-64: Tests. Test Fh: Vibration, broadband random sampling

ASTH D4728- 2006 Standard Test Method for Random Vibration Detection of Shipping Containers

GB/T 4857.& nbsp;23-2003 Packaging Transport Packages Random Vibration Test Method