Re:Test Engineers can help you with your Buzz Squeak and Rattle Test Design.

Buzz Squeak and Rattle (BSR) testing was developed in the 80's as automotive product performance became more competitive. As the interior noise of vehicles was reduced through improved engine isolation, body and suspension designs, annoying non-linear noises caused by vibrating surfaces, stiction, friction, etc. became more evident. Buzz Squeak and Rattle (BSR) tests were developed to identify and troubleshoot these issues. Because on their non-linear nature, identifying issues can be a challenge. While a vehicle may be completely quiet in most conditions, a certain temperature and humidity combination might cause mating plastic structures to expand (or contract) and introduce a coefficient of friction that creates an annoying audible noise. Buzz Squeak and Rattle (BSR) tests are performed on complete vehicles in development labs and production lines (for quality control) and on components such as instrument panels.

Designing a Buzz Squeak and Rattle (BSR) test requires a significant amount of experience, especially if the test article is a structure, assembly or component with complex geometry, multiple loading axes, and multiple interfaces with many different materials. Many different parameters are used to distil the operating environment into a lab test that can pinpoint issues inexpensively and as quickly as possible. The process begins with  field data acquisition and an evaluation of the vehicle, structure, component or assembly. The loading is then broken down into an efficient, short histories (sinusoids, block profiles, random vibration control, real time simulation etc.), at appropriate temperature and humidity settings.

We can come and help you on site, or you can learn how to do it through our on-line training class.

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For a free quotation, call Re:Test at (612)747-8378, or contact us.

See also:

Re:Test Teams with Ford to Build a Buzz Squeak and Rattle (BSR) Test Facility |  Buzz Squeak and Rattle (BSR) Test Consulting and Training |  Buzz Squeak and Rattle (BSR) Test Services and Equipment |  Full Vehicle Testing  |  Multi-Axis Simulation Tables (MAST)  |  Real Time Iterative Time History Simulation