VIRTUAL
FOR
ASSESSMENT
INTERACTION
PASSENGER
AIRBAG
METHOD
BETWEEN
AND
INSTRUMENT PANEL
BACKGROUND
Volvo Car Corporation (VCC) is an automotive OEM that acts in the premium segment.
Everything we do at Volvo Car Group starts with people. It is what makes us different from
other car companies and it is at the heart of everything we create. That is why all cars from
Volvo are DESIGNED AROUND YOU. We know people better than any other car brand and
we are looking for talented graduates. If you have got passion and drive for CAE engineering,
you can apply for a thesis work starting Jan 2016 at R&D Interior Restraints.
Volvo Car Group is regarded as the role model for traffic safety based on our products
and our commitment to safety.
During a crash of sufficient severity the passenger airbag (PAB) is activated and deployed
through the instrument panel (IP). This deployment through the IP is essential for the function
and robustness of the airbag system. Traditionally, the interaction between PAB and IP has been
evaluated by physical test methods. Since VCC strategy is to decrease dependency of early
product verifying test series, this interaction must be verified virtually during development
phases. The purpose of this master thesis is to develop methods for virtual assessment of the
PAB / IP interaction using primarily LS-DYNA.
TASKS
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To understand the system study the current physical behavior between PAB and IP on a
current car model. Complete system and IP component test.
Setup a CAE model correlating to the physical behavior. Use available models.
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Compare results from CAE model with measurement data from test
series.
Develop main principles for interaction in the deployment phase of the
PAB through the IP.
Establish a virtual test setup for the interaction of the PAB and IP, able
to verify CAE results and feasible for requirement setting of the PAB
behavior. Correlate simulation model to measurement data
Understand whether variation should be considered for evaluated system. Conduct
contribution analysis to find most contributing parameters. Incorporate geometrical /
mechanical variation as parameter in simulation. Vary most contributing parameters in
order to compare output variation with measurement data variation. Use DOE or other
statistical means if beneficial.
Suggest and evaluate potential for improvements. Define technical requirements /
specifications are necessary.
CONDUCTION
This thesis work needs to be conducted by 2 students. The time period is 20 weeks with start in
January 2016.
CONTACT INFORMATION
Johan Rosenberg
Technical Expert Airbag Technologies
Johan Ahlbin
Interior Safety Simulation
[email protected]