b'Engineer Innovation | Automotive & Transportation Our use ofor through the air, notes Randle. It iscan assess whether making a design important to understand the exact routechange, such as stiffening a component, because we can then make designwould reduce a vehicles interior noise. Simcenterrecommendations to our customer ifFinally, the desktop reporting feature necessary. provides a straightforward and SCADASSpecialist software and hardware isconvenient method of visually presenting and interrogating data.critical for this type of work and HORIBA hardware forMIRA has been using the SiemensExpanding technical capabilitySimcenter testing solutions for moreIn line with its ethos of continuously datathan 25 years. Simcenter Testlabdeveloping its capability, HORIBA MIRA software and Simcenter SCADASundertakes independent research as well hardware are a complete solution thatas customer-focused investigations. On a acquisitionincludes an extensive range of tools thatrecent project the company purchased a can be used to identify loads and obtaincommercially available electric car so means that wetransfer functions and operational data.that it could fit it out with The Siemens solution is part of ourinstrumentation and conduct extensive offering, says Randle. The capability itanalysis. We set out to deepen our can efficientlygives enables us to be more efficient,understanding of electric vehicles and from design through simulation tovalidate the TPA process using the measure thevalidation. With our license model, weSiemens solution by working with a have access to a rich and wide range ofVolkswagen e-Golf, Randle explains. methods, both for acquisition as well asThis TPA exercise allowed us to quantify NVH behaviorprocessing of the data. This allows us toand rank the structure-borne noise select the best methods for differentcontributions through the motor of vehicles. needs. Thanks to this licensing modelmounts, the driveshafts and the airborne we have an extensive range of powerfulnoise radiated from the motor itself.Mark Burnettsoftware available to us.NVH Technical LeadAt HORIBA MIRA, a lot of our work is HORIBA MIRA Burnett uses Simcenter Testlab on a dailyfocused on developing prototype basis. Through signature testing andvehicles and when we first take delivery analysis, we can acquire operational dataof them it is quite straightforward to from a vehicle and separate out themake improvements using relatively higher frequency orders that tend to besimple techniques, Burnett adds. As present in an electric vehicle, even in thethe prototypes mature we need to use presence of background noise, Burnettmore detailed methods, such as TPA, to says. The spectral test and modalmake further improvements. It was analysis applications enable us totherefore very useful to focus on a car understand the various resonancesof such caliber; the project confirmed within a structure and measure thethat we can achieve very strong required transfer functions with differentcorrelation even with a quiet electric excitation techniques. Using this data wevehicle.74'