First-of-its-kind system proven effective for analyzing structure-borne "chuckle" and meeting a full spectrum of damper and elastomer testing requirements.
Byron Saari, P.E. - Principal R&D Engineer shares a wealth of experimental data proving the new Model 853 Damper NVH System capable of acquiring the high frequency measurements needed for meaningful analysis of structure-borne “chuckle" noise phenomena, which can be especially degrading to the ride comfort and quality of quieter electric and autonomous vehicles. Drawing on MTS' extensive damper and elastomer testing technology and expertise, the innovative Model 853 delivers the performance needed for addressing the complete spectrum of damper noise phenomena - conventional, structure-borne, and air-borne - and conducting elastomeric component testing.
Structure-borne "Chuckle" Testing:
High-bandwidth transducers and accelerometers - typically used in elastomer testing - perform damper NVH measurements with fidelity and accuracy up to 800 Hz. A highly stiff elastomer system load frame with larger diameter columns, a thicker crosshead, and more robust base prevents the resonant modes that can corrupt test data. Linear electric actuation technology provides the clean sinusoidal input and low total harmonic distortion (THD) required for meaningful chuckle testing.
High-bandwidth transducers and accelerometers - typically used in elastomer testing - perform damper NVH measurements with fidelity and accuracy up to 800 Hz. A highly stiff elastomer system load frame with larger diameter columns, a thicker crosshead, and more robust base prevents the resonant modes that can corrupt test data. Linear electric actuation technology provides the clean sinusoidal input and low total harmonic distortion (THD) required for meaningful chuckle testing.
Air-borne "Swish" Testing:
The inherent low audible noise of the Model 853 system combined with the available integrated acoustic chamber enables air-borne "swish" testing with background noise less than 40 decibels.
The inherent low audible noise of the Model 853 system combined with the available integrated acoustic chamber enables air-borne "swish" testing with background noise less than 40 decibels.
Elastomer Testing:
The multi-functional Model 853 can also perform elastomer testing with an optional elastomer test fixture, MTS Elastomer Testing software, and a versatile FlexTest controller capable of reproducing any signal.
The multi-functional Model 853 can also perform elastomer testing with an optional elastomer test fixture, MTS Elastomer Testing software, and a versatile FlexTest controller capable of reproducing any signal.
