Identification of root cause based on simulation approach

Abstract

The paper shows and explains customer claim regarding improper functionality of hydraulic brake valve integrated into harvester machine. Further, the paper also presents simulation-based approach to understand and solve the issue. In the first step, fully detailed one-dimensional (1D) lumped model has been made in order to reproduce customer issue. Here, it is essentially to mention that (simplified) customer environment/machine was also part of detailed 1D numerical model – customer engagement in root-cause analysis is important. Thanks to detailed simulation model, deep understanding of the key parameters that affect the machine malfunction was possible in the second step. Model allows performing sensitivity study on key parameters with high fidelity. Lastly, based on detected key parameters, harvester brake valve has been updated/redesigned and sent to customer for final validation. Customer satisfaction along with short and effective response time of Poclain development team convert challenge situation to success.