Vehicle Cascade & Target Response Analysis (VeCTRA) is an Excel Based Tool Used for the Idle NVH Target Cascade Process 2003-01-1434
Recent trends show a growing demand for improved powertrain noise and vibration quality. In particular, there is little customer acceptance of vibration and noise (“boom”) at engine idle speeds. CAE analysis is being used increasingly as an aid for reducing overall vehicle level responses. Traditionally, analytical idle response is evaluated for only one particular engine order at a time.
An efficient Excel based tool called VeCTRA (Vehicle Cascade & Target Response Analysis) was developed to accurately assess the effects of multiple powertrain orders on the vehicle level idle response. VeCTRA is capable of predicting the overall vehicle level response (tactile and acoustic) as well as determining the contribution from each engine order and the specific component excitations within an order. VeCTRA is capable of using analytical or experimentally measured sensitivity and/or excitation data.
Citation: Bergeon, M., Braunwart, P., Daly, M., and Huber, J., "Vehicle Cascade & Target Response Analysis (VeCTRA) is an Excel Based Tool Used for the Idle NVH Target Cascade Process," SAE Technical Paper 2003-01-1434, 2003, https://doi.org/10.4271/2003-01-1434. Download Citation
M. Scott Bergeon, Paul Braunwart, Mark Daly, John Huber
LMS North America, Ford Motor Company
SAE 2003 Noise & Vibration Conference and Exhibition