Training - Systematic approach for NVH Problem solving Techniques - 2

In the context of NVH vehicle development, a common source of costly design change is where issues are discovered late in a program during vehicle testing or even post launch. Often this occurs where the simulation has met the targets including vehicle level analysis. By considering a population of results rather than the nominal CAE result, a process is demonstrated to develop a more reliable design that will deliver high levels of customer satisfaction and lower levels of late change and warranty costs. In this presentation we will introduce how this can be achieved through the use of MSA and RBDO methods within the framework of Altair’s NVH Director environment. Presenter: Peter Benzie - Senior Technical Specialist NVH, Altair

Training - Systematic approach for NVH Problem solving Techniques

Improving the ESL using Complete Vehicle Correlation In the previous webinar, the development of an ESL has been shown based on a complete vehicle simulation. In order to validate this new approach, a comprehensive correlation work has been performed. Using the dynamic distortion in all closure body openings as correlation criteria offer a unique possibility to increase the understanding of the load from both the engine and the wheel suspension. This webinar presents this correlation where a test vehicle is driven on different test tracks both in reality and virtually. Presenter: Jens Weber | CAE Engineer, CEVT

ESL Development Based on Simulation - Application example The body stiffness has a major impact on the Squeak & Rattle performance of a car. Since the body structure of electrical/autonomous cars will differ clearly from traditional bodies, an enhanced requirement is needed to limit the distortion in the closure openings. This webinar presents a new approach of defining a requirement based on closure deformations using an equivalent static load (ESL), which considers both the reduction from a complete vehicle to a BIG and from a dynamic load to a static load. In addition, an example is shown how ESL can be used as input for body optimization. Presenter: Viktor Jonsson | CAE Engineer (Consultant), CEVT

Training - Systematic approach for NVH Problem solving techniques - 290520

Training - Systematic approach for NVH Problem solving techniques 28/05/2020

A systematic approach for NVH Problem solving techniques - 25/05/2020

Post Processing For NVH - HyperView:NVD

The key element of an electric vehicle (EV) is the battery and batteries are known to produce heat during their charge-discharge cycle. An efficient thermal management system (TMS) is of paramount importance. The battery TMS affects the cost, life, and range of the EV. A battery TMS study or an EV TMS study involves the use of thermal and fluid physics and Altair’s AcuSolve (Computational Fluid Dynamics based Simulation Technology), was used to carry out this study. The importance of finding new methods for effectively and accurately designing TMS that control temperature and optimize the performance of Li-ion batteries. This can be used to study and optimize the Battery Thermal Management System and other Thermal Management requirements arising in an electric vehicle which involves both active and passive cooling. A similar issue of heat (unwanted) exists in Motors as well, in this, we shall cover the Multiphysics simulation of Motors which shall include both electromagnetics and CFD Thermal studies of both air and liquid coolant motors.

Replacement of traditional combustion engines with an electric powertrain, bring electro-mechanical induced tonal and high-frequency whine noise. In addition, tire and aerodynamic turbulent noise become more prominent in the absence of a standard Internal Combustion Engine. Also, the perceived sound quality imposes a new set of challenges. This leads to completely new methods of NVH refinement, keeping the decades of research aside. As it is important to address these issues at the design and development stage, adopting the new simulation techniques to manage future NVH challenges in e-Mobility is of the prime challenge to the traditional NVH engineers. In this webinar, we shall discuss some of those key NVH challenges specific to electric vehicles and appropriate simulation processes to develop countermeasures.

Electric Vehicles (EV) are complex systems and need to be connected, automated, lighter & smarter all at once. This calls for systems engineering where different systems are seen whole instead of in silos. Experience e-Mobility Simulation using Altair Model-Based System simulation solutions with real-time motor controller implementation on HIL (Hardware in the loop) with the micro-controller. Its intuitive block diagram environment allows users to model and simulate continuous and discrete dynamical systems, mix signal-based, physical modeling and Co-simulation with electro-magnetic & multi-body dynamics. End to end system-level virtual simulation for complete e-Mobility is made possible.

Traction Motor play key role in the electric vehicle/hybrid electric vehicle (EV/HEV) development process. The design of a High-Performance e-Motor is a complex undertaking. Engineers have conflicting constraints to consider including efficiency, temperature, weight, size, and cost. To explore more ideas, better understand their designs and improve performance, Altair HyperWorks™ has a workflow to guide motor designers through an efficient process of Simulation-Driven Design. This analysis and optimization solution supports multi-disciplinary teamwork and reduces design times.

During the development of new vehicles, PSA Peugeot Citroën Group (PSA) wanted to take the lead in using simulation technology to detect squeak and rattle noise problems, before physical testing was possible. The initiative led to a collaboration between PSA’s Method Development Engineering team and Altair ProductDesign to explore the use of simulation technologies and numerical optimization methods at an early stage of development. This 60-minute Webinar, jointly presented by PSA and Altair, discusses the project and its progress, describing the results achieved through the application of an “E-Line method” approach and detailing how the newly established processes have been integrated into PSA’s existing Virtual Development Process (VDP).

The Advanced CAE Model Build and Integration Workshop showcases improvements in advanced meshing workflows, enterprise connection and model comparison that helps streamline model-build - process and improve the quality and deliver simulation ready models. The Workshop will be conducted by Mr. Michael Dambach, Vice President, HyperWorks Mod-Vis Program Management, Altair Inc.