CASIMIR/Automotive – CAE Solution for Virtual Seating Comfort Analysis

The CASIMIR/Automotive software tool was developed specifically for the virtual evaluation and optimization of seating comfort. The basis for this is a deep understanding of the interaction between seat and human, which results in special requirements for the modeling of both.

My name is CASIMIR.

"Thanks to years of ongoing development, I now accurately reproduce humans and their mechanical as well as sensory abilities. So when I sit on a model of a seat, you can see where it can still be improved so that future occupants always drive safely and comfortably. And all of this happens purely digitally."

Personal Consulting & Offer

A model in CASIMIR/Automotive therefore always consists of two central components

Individual model of the unoccupied seat

From the seat structure to the upholstery – with the help of various assistants such as a Material Manager, you can create an exact finite element model of your seat. We will gladly assist you in this upon request.

With the TrimSim function, you can also precisely simulate the behavior of the seat cover in relation to the foam cushion during the covering process and determine, for example, what foam volume ("overbuild") is required to prevent undesirable effects such as wrinkling.

Customizable virtual human model

As anatomy-based finite element models, CASIMIR human models describe the static and dynamic properties of typical occupants – expressed by percentiles such as f05, m50 and m95. After selecting the appropriate configuration, the desired postures can be assumed and displayed with the help of the Posture Preview.

The CASIMIR virtual occupant model can be used independently of the CASIMIR/Automotive software tool wherever human models are needed in product development – for example, in aviation or in corridor and cargo vehicles.

Achieving
objective and reproducible results

Identifying
weaknesses at an early stage

Analyzing
innovative design concepts

Reducing time and cost efforts
through digital prototypes

Valid seating comfort evaluation through realistic loading

When both models are combined, the so-called occupied seat can be tested virtually. Standard load cases as well as individual scenarios can be efficiently investigated. The simulation is geometrically non-linear and takes into account the frictional contact with the seat cushion and backrest.

Easy integration into existing workflows

To enable easy integration into existing workflows, CASIMIR/Automotive was integrated into the FE preprocessor HyperMesh® and uses SIMULIA Abaqus as FE solver.