Bertrandt AG Head office Birkensee 1 71139 Ehningen Telephone +49 7034 656-0 Telefax +49 7034 656-4100 www.bertrandt.com www.sahara.de Photos: Andreas Körner, Stuttgart; Bertrandt archive, istockphoto, Fotolia CI-796-10.15-G FUNCTIONAL DESIGN/ SIMULATION (CAE) BERTRANDT ENGINEERING NETWORK
DEVELOPMENT PROCESSES Improvements in simulation tools and computing power have meant that digital validation has become increasingly important in vehicle development in recent years. Simulation that supports the development process will help to achieve the aim of cutting costs and reducing development time by eliminating development phases that require physical testing. In many areas, for example passive safety, aerodynamics or ride comfort, the early development phases are decisively influenced by simulation results. With our passion for virtually driven development, we ensure that functional objectives are reliably achieved. Michael Hage, Head of Vehicle Body Body-in-White/Exterior/Interior and CAE
04 FUNCTIONAL DESIGN/SIMULATION (CAE) 05 BERTRANDT S RANGE OF SERVICES From the initial idea to production readiness more than 12,000 employees at 47 locations worldwide develop solutions in the fields of vehicle body, interior, electronics, powertrain and chassis. The range of services is complemented by simulation, validation and supporting services. Design Services/Design Modelling and Rapid Technologies Vehicle Body Interior Engineering Services Electronics Testing/Trials Simulation Chassis Powertrain
06 HIER STEHT SCHÖNER BLINDTEXT ESSAIS 00 PRODUCT DEVELOPMENT PROCESS Body-in-White Interior Vehicle Safety Powertrain Chassis Electronics Complete Vehicle Functional Design/Simulation (CAE)
Body crash structure Occupant Protection Occupant Protection/ Interior Modules Crash Management System/Pedestrian Safety Structural Add-On parts Stiffness/Noise, Vibration, Harshness (NVH) Computational Fluid Dynamics A vehicle s body structure plays a vital role in fulfilling the requirements of legislators, consumer tests and insurance companies. We perform CAE simulations with a high energy input, evaluate the results and propose modifications to improve structural crashworthiness. Various components in the vehicle interior contribute to the safety of the occupants. We take care of the functional design and integration of individual components and their effective interaction to guarantee optimum protection in frontal and side-impact collisions. Interior modules have to meet various functional demands. These include requirements relating to vehicle safety, stiffness, strength, durability and comfort. In the development process, you define your objectives and we design the components and modules accordingly. Functional design always takes place in close consultation with the development departments involved, such as Design and Testing. Front-end and rear-end structures not only have to meet legislative requirements, they also need to be repair-friendly after a crash. We take care of the design and configuration of all components relevant to pedestrian safety. Structural add-on parts such as the bonnet, doors and boot lid have to fulfil various functional requirements. We design the individual components for you, taking into account all the necessary constraints. Comfort requirements in vehicles are constantly increasing. Components such as the body structure, powertrain and chassis have to be designed in such a way that they take into account the local and global, static and dynamic stiffness requirements. Fluid dynamics influences the correct functioning and energy consumption of powertrain components, cooling components and other vehicle components involved. Typical load cases Frontal crash Side impact crash Rear-end crash Door crush test Roof crush test Rollover test Numerical optimisation Front Impact Protection Design and configuration of frontal crash restraints systems (airbags, knee bags, seat belts, etc.) to deliver optimum safety protection potentials for the occupants. Side Impact Protection Design and configuration of side impact restraint systems (side bags, head airbags, etc.) to deliver optimum safety protection potentials for the occupants. Cockpit /Centre Console/Centre Armrest Stiffness and NVH (noise, vibration, harshness) Strength simulation Airbag inflation Airbag deployment through the cover Greenhouse Stiffness simulation Seat Structure Stiffness comfort simulation NVH simulation Strength simulation Door Trim Panel Stiffness simulation Strength simulation Misuse load cases Front End Crash Management Low-speed crash (up to 15 km/h) Pedestrian Safety Head impact Leg impact Upper leg impact Rear End Crash Management Low-speed crash (up to 15 km/h) Bonnet, doors (front, rear sliding doors), boot lid Typical Requirements: Stiffness Global torsion, bending, local buckling strength Comfort Natural frequencies and modes Energy emission Safety Pedestrian safety Typical Analyses Local/global static and dynamic stiffness values Modal analyses Frequency response analyses Operational modal analyses Acoustics Sensitivities Numerical optimisation 1D CFD Simulation Simulation of the coolant circuit Engine and component cooling Thermodynamic cycles in driving cycles 3D CFD Simulation Engine compartment CFD Aerodynamics Air conditioning/comfort rating Airflow management Aeroacoustics
12 FUNCTIONAL DESIGN/SIMULATION (CAE) 13 OUR LOCATIONS United States 2 locations China 2 locations Head office Ehningen Telephone +49 7034 656-0 info@bertrandt.com Germany Aalen Augsburg Bremen Cologne Donauwörth Ehningen (Stuttgart) Friedrichshafen Gaimersheim (Ingolstadt) Ginsheim-Gustavsburg (Rüsselsheim) Hamburg Kassel/Baunatal Leipzig Leonberg Ludwigsburg Mannheim Mönsheim (Weissach) Munich Neckarsulm Neutraubling (Regensburg) Nufringen Sassenburg Stuttgart Tappenbeck (Wolfsburg) Weil im Schönbuch (Stuttgart) China Changchun Shanghai France Bièvres (Paris) Montbéliard Toulouse Hungary Györ (Budapest) Spain Barcelona Turkey Istanbul United Kingdom Dunton United States Rochester Hills, MI Greenville, SC You can find further information to our sites on: www.bertrandt.com/ en/company/locations Turkey Europe United Kingdom Germany 36 locations France 3 locations Spain Hungary
00 HIER STEHT SCHÖNER BLINDTEXT ESSAIS 00 A decentralised structure combined with a broad and allencompassing range of services ensures that Bertrandt is a reliable and competent development partner in close proximity to its customers. PROJECT ENQUIRIES AND FURTHER INFORMATION Our special expertise and our many years of experience in project and process management make us an interdisciplinary technology expert who can efficiently take the entire product development process to a successful conclusion. Are you looking for a technology specialist who really understands your needs? Then please send your enquiry to: simulation@bertrandt.com Further information about our entire range of services can be found online at: www.bertrandt.com/range-of-services