Browse Publications Technical Papers 2004-01-1177
2004-03-08

Vehicle Door Latch Safety Measures Based on System Dynamics 2004-01-1177

The governments of many countries have established regulations that address the issue of vehicle door safety during crash events. Depending on the regulation or specification, analytical tools may be acceptable for verifying the crashworthiness of a latching system. In those instances where actual test crashes are required for verification, analytical methods can still be used to help predict the outcome of a crash test. Two relevant analytical approaches for multibody dynamics computation are discussed in the paper. One is related to monitoring the effects of constant 30G inertia loading in all directions (spherical analysis) and another addresses inertia pulse loading of specified G levels in certain directions. In some crash situations, the latch system compliance with the regulations may be insufficient to prevent door release. To secure the door in the latched position additional safety devices can be deployed in various locations of the door latch system. One group of such devices relies on using inertia catch levers triggered by specific acceleration of vehicle door. The development and tuning of the inertia catch devices is done by analytical means followed by latch system validation during crash tests.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Collision Performance of Automotive Door Systems

940562

View Details

JOURNAL ARTICLE

Evaluation of Dynamic Roof Deformation in Rollover Crash Tests

2011-01-1093

View Details

TECHNICAL PAPER

Safety and Security Considerations of New Closure Systems

2000-01-1304

View Details

X