LMS Virtual.Lab System-Level Fatigue is the complete solution for optimizing subsystems or assemblies, and tracing strength and fatigue of system parts. It allows engineers to calculate component loads from prescribed system motion through multibody simulation, using the embedded LMS Virtual.Lab Motion solver. These component loads are combined with structural stresses. Finally material fatigue parameters are applied to predict the component fatigue hotspots and corresponding fatigue life.
The easy-to-use interface facilitates the setup of multibody models with dedicated templates and custom wizards to guide the user through the process. Scalable modeling makes it possible to refine models at any time and to work with rigid or flexible component representations. The previously lengthy and error-prone job of integrating a flexible body now only takes a few mouse clicks. All the user needs to do is pick up the component FE mesh and drag it into his system model. All body connections are automatically established, based on the detected attachment nodes and degrees of freedom.
LMS Virtual.Lab System-Level Fatigue cascades road profiles down to load responses on the component level. The multibody model is put on a virtual test rig and the appropriate boundary conditions for applying the road profile are automatically set. For each individual system part, predicted information on dynamic load cases, modal participation factors, locations of excitations and local axes configurations are automatically transferred to the fatigue-life solver.
The post-processing functions provide fast and critical insights into the load transfer path causing the fatigue life of any component, allowing engineers to quickly investigate hotspots and rerun analyses for many design variants on system level.
