Simulation – validating and accelerating processes
In order to be able to meet customer's requirements for shorter development times, Bertrandt's development process takes the form of simultaneous engineering. The systematic use of virtual CAE methods allows our simulation specialists to set the direction in the early stages of development for achieving the functional objectives, such as crash performance and comfort.

Body-in-White Crashworthiness
The crashworthiness of a car body`s structure is instrumental in meeting the requirements of legislators, insurance companies and consumer tests. We perform CAE simulations with high energy impact, evaluate and propose modifications for an improved structural crash-worthiness.

Typical load cases 

• Frontal crash
• Side crash
• Rear impact 
• Door crush test 
• Roof crush test 
• Rollover
• Numerical optimisations

Occupant Safety
Various restraint systems contribute to the safety of occupants in the interior. We will take care of all the components' functional design and integration, and ultimately their effective interaction, in order to guarantee occupant safety at an optimum level for frontal or side impacts.

In a frontal crash The configuration of airbags, knee bags, belts, etc. to deliver optimum occupant safety potentials. In a side crash The configuration of side airbags, head airbags, etc. to deliver optimum occupant safety potentials.

Occupant Safety/Interior Modules
Interior modules have to meet various functional requirements, including safety related requirements such as stiffness, strength, durability and comfort.

Cockpit development/centre console/centre armrest  Occupant safety simulation Stiffness and vibration comfort Strength simulation Airbag inflation Airbag deployment through the cover
Greenhouse development Occupant safety simulation Stiffness simulation Seat structure development Occupant safety simulation Stiffness comfort simulation Vibration comfort simulation Strength simulation	Door trim panel development  Occupant safety simulation Stiffness simulation Strength simulation Misuse load case

Crash management front-end Low-speed crash (up to 15km/h) Pedestrian safety  Head impact Leg impact Upper leg impact Crash management rear-end Low-speed crash (up to 15km/h)

Closures
Closures attached to the body-in-white such as front hoods, doors and boot lids have to meet various functional requirements. We develop these individual components for you with a great care for all constraints.

Front hood, doors (front, rear, sliding door), boot lid
Typical requirements

Stiffness

• Global torsion, bending, local buckling strength

Comfort

• Natural frequency and modes
• Energy emission

Safety

• Pedestrian safety

Stiffness/Vibration Comfort
Comfort requirements on vehicles are increasing constantly. Contributors such as the car body, powertrain and chassis/suspension system have to be designed and integrated considering local and global, static and dynamic stiffness values.

Typical analyses  Local/global static and dynamic stiffness Modal analysis Frequency response analysis  Operational modal analyses Sensitivities Numerical optimisation

Computational Fluid Dynamics
Fluid dynamics influence the proper functioning and energy consumption of powertrain components, cooling components and practically all components that form part of a vehicle.

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