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Automotive Center Airbag Design and Crash Simulation

30 Chapters
View Course Samples Online
01
Course overview
scope, concepts, and technical context of automotive center airbag design and crash simulation.
technicalautomotive
02
Occupant kinematics in frontal, side, and oblique impacts
injury mechanisms and the role of center airbags.
Occupantkinematics
03
Regulatory and consumer rating requirements
FMVSS 208, FMVSS 214, Euro NCAP, and China NCAP for center airbag deployment.
Regulatoryconsumer
04
Center airbag system architecture
module, inflator, cushion, tether, and mounting interfaces.
architectureinflator
05
Airbag cushion design fundamentals
geometry, volume, venting, and seam layout for center airbags.
geometry
06
Inflator selection and performance matching
pyrotechnic, hybrid, and cold gas inflators for center airbag applications.
Inflatorselection
07
Material selection for center airbag cushions
fabrics, coatings, and durability under high-temperature deployment.
Materialselection
08
Packaging and integration constraints
seat structure, console, and roof rail considerations for center airbag modules.
Packagingintegration
09
Occupant classification and sensing
weight, position, and crash severity inputs for center airbag deployment logic.
Occupantclassification
10
Deployment timing and triggering strategies
algorithm development and calibration for center airbag systems.
Deploymenttriggering
11
Out-of-position (OOP) occupant risk assessment and mitigation for center airbags.
Out-of-position (OOP) occupant risk assessment and mitigation for center airbags.
Out-of-positionOOP
12
Simulation workflow for center airbag design
CAD, meshing, and model setup in LS-DYNA or equivalent solvers.
Simulationworkflow
13
Airbag modeling techniques
uniform pressure, corpuscular particle method (CPM), and arbitrary Lagrangian-Eulerian (ALE) approaches.
modelingtechniques
14
Inflator modeling
tank test correlation, mass flow rate, and gas temperature inputs for simulation.
Inflatormodeling
15
Cushion folding and deployment simulation
folding patterns, initial metric method, and contact definitions.
deploymentsimulation
16
Occupant restraint system modeling
Hybrid III and THOR dummy positioning and belt interaction.
Occupantrestraint
17
Seat and interior trim modeling for center airbag interaction
material models and contact parameters.
interiormodeling
18
Validation and correlation
sled tests, static deployment tests, and component-level validation for center airbags.
Validationcorrelation
19
Design of experiments (DOE) and optimization for center airbag performance
cushion volume, vent size, and tether length.
experimentsDOE
20
Parametric studies for center airbag design
sensitivity analysis of inflator output and venting on occupant injury criteria.
Parametricsensitivity
21
Side impact and far-side occupant protection
center airbag as a countermeasure for far-side occupants.
far-sideoccupant
22
Integration with other safety systems
seat belts, side airbags, and rollover curtains for center airbag synergy.
Integrationrollover
23
Manufacturing and production considerations
cost, assembly, and quality control for center airbag modules.
Manufacturingproduction
24
Durability and environmental testing
temperature cycling, humidity, vibration, and corrosion for center airbag systems.
Durabilityenvironmental
25
Failure mode and effects analysis (FMEA) for center airbag design and deployment.
Failure mode and effects analysis (FMEA) for center airbag design and deployment.
analysisFMEA
26
Advanced simulation methods
fluid-structure interaction (FSI) and coupled Eulerian-Lagrangian (CEL) for airbag deployment.
Advancedsimulation
27
Case study
design and simulation of a center airbag for a midsize sedan to meet Euro NCAP far-side requirements.
simulationNCAP
28
Case study
optimization of a center airbag for an SUV to mitigate occupant-to-occupant interaction in oblique impacts.
optimizationSUV
29
Emerging trends
smart airbags, adaptive venting, and integration with autonomous driving interiors.
Emergingadaptive
30
Capstone project
complete a center airbag design and crash simulation from concept to validation using industry-standard tools.
Capstonecomplete