Proven Vibration Testing of Hybrid-vehicle Batteries

Brüel & Kjær delivers a large LDS vibration-test system for hybrid battery durability testing
Hybrid power technology development is ramping up globally. In today‘s ultra-competitive automotive industry, these technologies of the future demand vibration test solutions that can efficiently perform highly accelerated lifetime testing (HALT), even on large and fully operational assemblies.

The LDS Vibration Test System delivered to an Automotive OEM is an excellent example of a high-performing and versatile system that can easily be adapted to several test demands on large, heavy payloads in multiple axes. For example, accelerated durability tests simulating the whole lifetime of a car where continuous testing for several days at very high vibration levels and extreme temperature conditions are required. 

Battery Pre-production Qualification and Functional Test
The system is currently used for hybrid vehicle pre-production qualification and functional test of complete battery assemblies designed to be mounted underneath a car. The weight of a battery unit can exceed 250kg.

Typically, tests are performed continuously over several days in a climatic chamber with temperature cycled over a very large temperature range. The system is able to deliver a continuous vibration level of several g’s with a kurtosis level up to 7.

The Solution




An LDS V8-640 shaker system with an SPA-56K amplifier. Test levels capacity 60kN Random & Sine

Two different sized head expanders that can handle up to 1.8 x 1.8m

Two different sized slip tables also capable of handling up to 1.8 x 1.8m