b'Engineer Innovation | Automotivethose are rare, valuable items. The array is often employed when the team tests or benchmarks vehicles at its Swedish proving ground track Hllered. When necessary, the tool allows us to perform multiple tests during the same measurement run as long as the other test is not influencing the acoustics, says Manns. We dont always need to dedicate the test to acoustic quality only.Although not easily quantified, the time gained by being able to perform multiple simultaneous tests is important.the interior. In the past, Manns had toThe setup of the acoustic camera is check many points to find the origin ofrelatively straightforward after a short a troubling noise, but now she can seeinduction, and it can be used in it on the image. This method providesnumerous circumstances. In the test quick input for further investigations;cell, the acoustic camera is employed the acousticians can estimate and rankfor the full system as well as potential noise issues based on thecomponent testing. The array is useful picture. As a result, the engineeringon the test track and in test cells, but it team at Volvo Trucks can make relevantalso serves the purpose of aero-modifications and focus on the nextacoustic measurements in the wind action. tunnel.Time-saving testing methods The fact that we can use the array This drastically simplifies truckwhile performing other tests is a huge instrumentation and shortensmoney saver, says Manns. For instrumentation time. It is difficult toexample, we can instrument a truck in estimate the time gain, but I know it toorder to get our data while it is be consequential, says Manns. Beforeundergoing an aerodynamic test in the we would perform larger sound analysiswind tunnel to see both aerodynamic on various occasions, doing one test atand aeroacoustics impact a time. Now we check many potentialsimultaneously.weak spots in a single measurement run. Setting up the Simcenter Testlab 3DKnowing that wind tunnel tests are Acoustic Camera takes us less than twoextremely costly, every gigabyte of hours, and the measurement is reallycollected data should be worth its quick. The array makes it a lot easier tomoney. While the installed camera assess multiple vehicles in shorterrecords huge data sets on the times, for benchmark, quality checks orconnected Simcenter SCADAS Mobile hot spot detection on a prototype. hardware, the systems powerful Simcenter Testlab software facilitates Time efficiency in measurement is avalue-added postprocessing, rapidly true asset when testing prototypes asdelivering results and information. Setting up the Simcenter Testlab 3D Acoustic Camera takes us less than two hours, and the measurement is really quick.Theresia Manns Senior feature analyst Volvo Trucks60'