Linamar McLaren's advanced NVH/durability test stands
Ontario-based Linamar - one of Canada’s largest automotive parts companies - has partnered with Brüel & Kjær to work on the development of Linamar’s products and automotive engineering solutions.
In 2003, Linamar acquired McLaren Performance Technologies, under which Linamar’s product development group is organised at three locations, including Livonia, Michigan, USA.
The modern engine testing facility in Livonia can operate around the clock and houses 16 dynamometer test cells capable of performing endurance and reliability testing, steady-state emissions testing, engine build tear-down evaluation, powertrain engineering and design, and noise and vibration studies. The NVH (Noise, Vibration, Harshness) group at McLaren focuses on gearboxes, drivelines, power transfer units and rear drive units.
In 2010, Linamar commissioned a brand new NVH/ durability testing facility at the Livonia site. Dr Mike Browne, an Engineering Specialist with McLaren Performance Technologies (NVH, Driveline Systems/Powertrain Engineering department) was heavily involved in building this facility from the ground up.
Dr Browne introduced Brüel & Kjær’s PULSE data acquisition system into Linamar, as he had successfully worked with Brüel & Kjær on the implementation of end-of-line product test systems using Brüel & Kjær’s Production Test Advisor (PTA), while in a previous position.
The new facility boasts expanded capabilities for the measurement of gear mesh excitation and Transmitted Error (TE). In addition to its existing Mini-TE test stand, the facility now has two new, state-of-the-art assembly test stands. As well as TE, radiated noise and other critical NVH characteristics, these test stands provide flexible, efficient and controlled operating conditions to determine the assembly level excitations during various operating conditions.
The TE and Mini-TE test stands both use a PULSE front-end as the primary data acquisition system with an analysis frequency range of 0 – 25.6 kHz, and a Brüel & Kjær Optical Tachometer. The new test stands also include a PULSE data acquisition system featuring 30-channels with analysis frequency ranging from 0 – 25.6 kHz and 12 auxiliary channel tracking.
To find out more, see the full case study here