Component Key Life and Durability Testing
At a glance
Millbrook runs key life tests following various OEM procedures to ensure the quality, durability and robustness of products.
Component and subsystem key life tests are accelerated environmental durability tests. They use temperature, humidity and vibration to replicate the expected life cycle of a product, typically to 150,000 customer miles for passenger cars.
Key Life Test Facilities
Millbrook has two Team Cube six axis hydraulic shakers which are used for key life tests. With a maximum payload of 500kgf and a dynamic force of 62kN in each axis, test components and systems can be mounted on the head expander (measuring 1.5m x 1.5m). This is set up within an environmental chamber with a temperature range of -40°C to +100°C and humidity of up to 98%RH.
Hydraulic shakers accurately replicate six axis road load data on full cockpit assemblies, including instrument panels and centre floor consoles, within a test buck or on a test fixture.
Actuation and cycling of subsystems, such as armrests, glove boxes and cup holders, is often required when running a key life test. Millbrook designs and develops test rigs to representatively actuate these systems throughout temperature and vibration profiles. Key life tests can be enhanced with infra-red solar loading of components, powering of electrical systems and circulation of conditioned air through HVAC elements.
Millbrook helps customers to define appropriate key life tests for their systems and components. Its key life tests are conducted efficiently and results are correlated before test reports are issued.
Access to Millbrook’s test tracks provides a single-source test offering for vehicle interior and component testing. By leveraging correlation exercises conducted between Millbrook’s test tracks and other proving ground facilities, Millbrook develops representative drive schedules. These can then be transferred to lab-based tests using the Millbrook’s on-site road load data collection capability.