LMS Virtual.Lab Durability

LMS Virtual.Lab Durability – Options

Seam Welds Modeling - Spot Welds Modeling

Hundreds of spot welds and long runs of seam welds may be part of sheet structures, as used in vehicle body and suspension systems. For spot weld fatigue analysis, LMS Virtual.Lab Spot Welds Modeling supports the CBAR rigid beams, CHEXA or CWELD FE elements, the Rupp or JSAE analytical spot welds formulas and material parameters from LBF. The LMS Virtual.Lab Seam Welds Modeling option automates the durability assessment of seam welds and spares engineers the trouble of tediously adapting the FE-mesh according to seam weld meshing guidelines. All that needs to be done is defining manufacturing details of the welded zone. LMS Virtual.Lab identifies the type of seamwelds and the local stress concentrations, based on all possible combinations of (local) load conditions of the welded detail.

Mesh Based Design

The Mesh Based Design option includes pre-processing functionalities to prepare your FE-mesh before detailed analysis and modification starts. It contains mesh modification, mesh quality checks, load application definition, constraint definition and property editing functionalities. This integrated FE mesh manipulation and editing tool allows fast engineering iterations and significantly increases productivity.

Mesh Morphing

LMS Virtual.Lab Mesh Morphing allows engineers to modify and morph existing meshes, independently from the functional performance attributes they are used for, without the need for remeshing, while preserving model integrity and connectivity. Engineers can perform analyses at the concept phase by morphing a predecessor model to the target style, resulting in better design directives much earlier in the development process, even before the first complete CAD models become available.

LMS TecWare Load Data Processing

A critical factor in successful durability engineering is gaining a precise understanding of the loads that your product will undergo during its lifetime. The use of unreliable load scenarios inherently implies invalid fatigue-life predictions, regardless of the durability prediction solution that was used. With LMS TecWare Load Data Processing you can efficiently analyze the vast amounts of accumulated data. Besides effective load data cleaning and validation, LMS TecWare focuses on the monitoring and comparison of essential loading aspects from a durability perspective. Automatic creation of reports consisting of a customizable mix of time histories, rainflow matrices, frequency information, statistics and fatigue prediction helps in selecting representative loading scenarios for further CAE based Durability engineering. It also delivers dedicated engineering insights which are needed to improve correlations between Test derived and load sequences predicted with multibody simulation.

MSC.NASTRAN Analysis Driver - ANSYS Analysis Driver

With the MSC.NASTRAN or ANSYS Analysis Driver option there is no need to manually set up and launch your favorite structural solver for stress analysis. From within one single environment unit load cases required as input for fatigue analysis are automatically set up and the FE solver is launched in the background. The Analysis Driver supports quasi-static, inertial relief and modal superposition-based stress analysis. No tedious load/FE-assignment required, no risk of making errors!

Optimization

Optimization provides a set of powerful capabilities for single and multi-attribute parametric optimization. Through Design of Experiments (DOE) and Response Surface Modeling (RSM) techniques, engineers gain a rapid insight in all the possible design options that meet their requirements. Using advanced optimization routines including manufacturing for six sigma, LMS Virtual.Lab automatically selects the optimal design, taking into account its sensitivity to real-world variability, and meeting the strictest robustness, reliability and quality criteria.

MSC.ADAMS to LMS Virtual.Lab Motion Convertor

The MSC.ADAMS to LMS Virtual.Lab Motion Convertor option allows to efficiently re use existing MSC.ADAMS multi-body models for system-level durability analysis. A seamless import of MSC.ADAMS .adm files into LMS Virtual.Lab Motion is the starting point for optimization and validation of the durability performance at the system level.

LMS CDTire (Comfort and Durability Tire) - LMS Hybrid Road

High-fidelity modeling of tires is the prerequisite for realistic drive simulations on digital test tracks. LMS CDTire, the world’s leading dynamic tire modeling solution, provides accurate tire models that correctly translate the impact of different road surfaces on the wheel spindle forces. The Digital Test Track allows automotive OEMs and suspension suppliers to efficiently gain accurate load data, long before vehicle prototypes become available.

An alternative solution, pioneered by LMS, combines test-based loads with virtual simulations. LMS Hybrid Road applies a new transformation methodology to accurately determine system loads, before they can be measured. It starts from wheel spindle loads measured on a previous model and converts these into wheel spindle displacements. These displacements are much less vehicle-dependent, since they are based on road surfaces, rather than on vehicle characteristics.