automotive

Evaluation of Railway Vehicle Car Body Fatigue Life and Durability using Multi-disciplinary Analysis Method

An integrated fatigue life and durability evaluation method based on multibody dynamics simulation (MBS) and finite element analysis for a locomotive car body is presented. A multi-disciplinary optimization algorithm is developed to handle the conflicting requirements of lightweight and good fatigue resistant car body structure designs. 

ESTECO Webinar | Optimizing rear-sear restraint system considering a divers population using Madymo and modeFRONTIER

​ESTECO and TASS International present the successful integration of their technologies to optimize a rear-seat restraint system considering a diverse population.​​​

Experimental Characterization of External Gear Machines with Profile Asymmetric Teeth

This paper describes the benefits of introducing gears with asymmetric teeth in EGMs, or external gear machines. The optimal profile of the gear is tested using a numerical optimization procedure run in modeFRONTIER and HYGESim with the following objective functions: delivery flow pulsations, internal pressure overshoots, localized cavitation effects and volumetric efficiency.

Design optimization of permanent magnet synchronous motors for HEV and EV

In the search for fuel-economy optimization design, a design method was developed for HEV and EV motors based on criteria of weight and fuel economy. As a result of accuracy validation, the proposed method using modeFRONTIER was found to be sufficient for use in initial motor design stage. 

Efficient Automatic Vehicle Shape Determination Using Neural Networks and Evolutionary Optimization

Improving the aerodynamic shape of a vehicle holds a large potential for cuts in emissions. This study attempts to optimize vehicle shape using neural networks and evolutionary optimization. modeFRONTIER was used on a simplified low-drag car model in a study of realistic changes of five design parameters.

Air Intake Manifold Design 1D-3D fluid-dynamic multi-objective engine performances optimization

This study aims to optimize an air intake manifold by adding 1D and 3D analysis to the optimization methodology in order to reach optimal geometry and performance. Torque and power performance is analyzed with a 1D Gt-Power model and the fluid-dynamic balance is performed with the CFX 3D fluid-dynamic code. modeFRONTIER was chosen to run the optimization process.

Vehicular causation factors and conceptual design modifications to reduce aortic strain in numerically reconstructed real world nearside lateral automotive crashes

This study aims to find an effective means of substantially improving the outcome of motor vehicle crash induced aortic injuries. A DOCE study was performed on 16 different combinations of five design factors generated using a Latin Square method in modeFRONTIER 4.0. The experiment utilized FE vehicle models and the Wayne State Human Body Model.

Crash Pulse Characterization for Restraints System Performance Optimization

This study aims to develop a process for crash pulse characterization for the early phase of the product development, conducted in a sled test environment. MADYMO and modeFRONTIER coupling were used for analyzing the injury performance of occupants with all crash pulses.

Conceptual Simulation for Plug-In HEV at Early Stage of Development

This study aims to build a conceptual simulation used at the early stage of PHEV development, to enable the precise prediction of fuel consumption and vehicle acceleration. The methodology used significantly contributes to design vehicle concept and to define system and component specifications.

Simplified FE Modeling of Rolling Tires for the Simulation of Dynamic Forces at Hub Level

Being the support of the vehicle and providing forces necessary to control it, pneumatic tires are one of the most important components. Nevertheless, they are probably the most challenging components that have to be modeled due to both their complicated composition and the materials used in their manufacturing process. 

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