The focus in WP1 has been to scan the state of the art related to the project to have a clearer overview of current alternatives to improve the frictional behaviour of gears in loss of lubrication conditions. Additionally, the project specifications, that is, material systems, testing conditions, lubricant, type of lubrication supply, and discs and gears geometry, were defined. These specifications are being the basis for the experimental campaign at TRL2 and TRL3 test rigs.
In WP2, the models for prediction on contact level have been developed, as well as the procurement and adaptation of the TRL 2 test rig, by means of the installation of sample temperature measurement and different vibration sensors together with synchronized online records. Additionally, a heated oil circuit with multiple temperature measurement positions for controlling temperature and avoiding overheating, and additions for oil-off conditions and verification of complete emptying of oil-box was installed. The system to measure the lubrication gap was also procured and installed.
From the other side, the discs for the TRL2 testing campaign have been produced. And finally, pre-tests and starting reference tests to evaluate the feasible parameter combinations have been performed.
In WP3, the test matrix for the first TRL3 testing campaign has been defined. In parallel the analysis and adaptation of the selected gear geometry has been carried out using a simulation software. Moreover, the gear production has started.
Last, but not least, the Plan for Communication, Dissemination and Exploitation has been launched and the first communication actions have been performed by the consortium, together with a review of the exploitation strategy.
