We needed to validate the strength of a UAT ceiling using simulation and analysis to ensure it has the correct design to integrate safely with the rest of the vehicle.
Scope
To carry out a sophisticated software-driven FEA to check the design.
To perform FEA for proof loads, service loads and bolt calculations. Evaluate the results and preparation of reports
Solution
Input study of ceilings
Preparation of FE model for the design using Hypermesh preprocessing software
Check the modal analysis, our model being that the first frequency had to measure greater than 20 Hz
Run the analysis for the identified combination of load cases, then evaluate the results for stresses and displacements
Perform the bolt calculations and carry out the preparation of analysis and calculation reports
Features
The result of the analysis was the first frequency was above 20Hz
The stresses were within the allowable limit for parent, weld and bolted regions
Benefits
Assurance – no changes in the design as the first frequency in modal analysis and the stresses are within the allowable limit for parent, weld and bolted regions.